Fast Translation from tex for: I/98A/./doc.tex

2  Structure

2.1  File Summary

The machine version of the NLTT Catalogue and First Supplement consists of two files. Table t:sumtab gives the machine-independent file attributes. All logical records are of fixed length, and, if the catalog is received on magnetic tape, it will contain blocks of fixed length (as noted below) except that the last block may be short. The first file contains the basic data of the catalog, while the second contains the notes for particular stars, as flagged in the individual records of the first file.

\centering

|

|NLTT Catalogue and First Supplement |
|

                                    | |Record  |Record 
                                     |Number of |
|File  |Contents  |Format  |Length 
                                     |Records   |
|

  1    |Data                          |Fixed     |65     |58845     |
  |2    |Notes                         |Fixed     |90     |5843      |
|

Summary Description of Catalog Files

The information contained in the above table is sufficient for a user to describe the indigenous characteristics of the machine-readable version of the NLTT Catalogue and First Supplement to a computer. Information easily varied from installation to installation, such as block size (physical record length), blocking factor (number of logical records per physical record), total number of blocks, density, number of tracks and character coding (ASCII, EBCDIC) for tapes, is not included, but should always accompany secondary copies if any are supplied to other users or installations.

2.2  Catalog (File 1 of 2)

This file contains the basic data of the catalog, which are the positions, magnitudes, spectral or color classes, and proper motions of the cataloged stars. The remarks flagged by asterisks in the star-identification field are contained in the notes file described in Section 2.3.

Table t:cattab gives a byte-by-byte description of the contents of the data file. A suggested Fortran format specification for reading each data field is included and can be modified depending upon individual programming and processing requirements (Fortran 77 character string-type formats are used); however, caution is advised when substituting format specifications, since many data fields contain character data and others are blank when data are absent. Default (null) values are always blanks in data fields for which primary suggested formats are given as A.

\centering

|

                  | |Suggested  |Default                             ||
 |Bytes    |Units      |Format    |Value   |Data  |
|

 1-14     |—         |A14       |—    |Star identification              |
 |15-16   |hours        |I2        |—    |Right ascension                  |
 |17       |—         |1X        |—    |Blank                            |
 |18-19    |min         |I2        |—    |R.A.                             |
 |20       |—         |1X        |—    |Blank                            |
 |21-22    |sec         |I2       |blank   |R.A.                             |
 |23       |—         |1X        |—    |Blank                            |
 |24-27    |min         |F4.1      |—    |R.A.                             |
 |28       |—         |1X        |—    |Blank                            |
 |29       |—         |I1        |—    |Right ascension precision flag   |
 |30       |—         |1X        |—    |Blank                            |
 |31       |—         |A1        |—    |Sign of declination              |
 |32-33    |deg         |I2        |—    |Dec.                             |
 |34       |—         |1X        |—    |Blank                            |
 |35-38   |arcmin       |F4.1      |—    |Dec.                             |
 |39       |—         |1X        |—    |Blank                            |
 |40-43    |mag         |F4.1     |blank   |Red magnitude                    |
 |44       |—         |A1        |—    |Red magnitude flag               |
 |45-48    |mag         |F4.1     |blank   |Photographic magnitude           |
 |49       |—         |A1        |—    |Photographic magnitude flag      |
 |50-52    |—         |A3        |—    |Spectral class or type           |
 |53       |—         |1X        |—    |Blank                            |
 |54-58  |arcsec/yr     |F5.3      |—    |Relative proper motion,
                                           µ (annual)             |
 |59       |—         |A1        |—    |Relative proper-motion
                                           uncertainty flag                 |
 |60-62    |deg         |I3        |—    |Position angle of proper motion,
                                           θ                         |
 |63       |—         |A1        |—    |Position-angle uncertainty flag  |
 |64       |—         |A1        |—    |Addenda flag                     |
 |65       |—         |A1        |—    |Supplement flag                  |
|

Data File Record Format

23ex

3ex

\[µ = (µ_α^2 cos^2 δ+ µ_δ^2)^1/2\]

µ_α = µ sinθ& ; & µ_δ = µ cosθ

2.3  Notes (File 2 of 2)

This file contains the notes for stars flagged by an asterisk in the identification field of the data file.

\centering

|

               | |Suggested  |Default                             ||
 |Bytes  |Units     |Format    |Value   |Data  |
|

 1-16    |—       |A16       |—    |Star identification  |
 |17      |—       |1X        |—    |Blank                |
 |18-19  |hours      |I2        |—    |Right ascension      |
 |20      |—       |1X        |—    |Blank                |
 |21-22   |min       |I2        |—    |R.A.                 |
 |23      |—       |1X        |—    |Blank                |
 |24-25   |sec       |I2        |—    |R.A.                 |
 |26      |—       |1X        |—    |Blank                |
 |27      |—       |A1        |—    |Sign of declination  |
 |28-29   |deg       |I2        |—    |Dec.                 |
 |30      |—       |1X        |—    |Blank                |
 |31-34  |arcmin     |F4.1      |—    |Dec.                 |
 |35      |—       |1X        |—    |Blank                |
 |36-90   |—       |A55       |—    |Note(s)              |
|

Notes File Record Format

9ex

3  History

3.1  Remarks and Modifications

The desirability for a machine version of the NLTT was evident immediately upon publication of the catalogs and, although the Palomar Proper Motion Survey data for stars of large proper motions reside on magnetic tape in Minneapolis, the tapes have not yet been processed to prepare a usable machine version. A possible format for the NLTT was designed at the ADC in 1980 shortly after the receipt of the final volume of the published catalog, and several pages of volume I were keyed into a computer; however, the project was put aside because of the great effort that it would have involved to key and check the data manually. When interest in a machine version was expressed by Space Telescope Science Institute personnel for use with the Guide Star Selection System for the Hubble Space Telescope, an automatic method of computerizing the catalog was contemplated and the present collaboration was formed. In 1981 March, we had received information on the Kurzweil Data Entry Machine (KDEM, an optical scanning device) from Intermedia Digital Conversion, Inc. (IDC) in Kensington, Maryland. A visit to the IDC was arranged and sample pages were taken for a demonstration run. The results indicated that the machine would perform satisfactorily as long as high quality source material were used, although there were indications that some data records might be shifted because of varying start positions in the left margin where the star identification field begins each entry. However, we were informed that it might be possible to avoid this problem if the machine could be set up and operated properly. Because of the cost involved for processing of the entire catalog, we decided to investigate other possibilities before making a final decision. A visit to The Johns Hopkins University Applied Physics Laboratory was arranged to examine an optical character recognition (OCR) machine located there, but this machine turned out not to have the capabilities required. (It is restricted to text prepared with a special font and, therefore, could be eliminated from contention immediately.)

Professor Luyten kindly supplied us with an extra copy of the entire NLTT, which was burst and set up for the job, and a contract was let to the IDC to proceed with the work. A question arose about how to process the Greek letters and double characters (e.g., 0\secdot10) included in the catalog, since they could not be translated directly into established hexidecimal character codes. The Kurzweil machine, however, has specific input capability for hexidecimal codes to represent individual characters, and these can be inserted manually when the machine stops at unrecognizable characters. Therefore, a table was provided so that the Greek letters could be inserted manually, as represented by extended EBCDIC codes now used to print on an extended chain printer. The double (overstrike) characters were processed so that they merely followed one another (e.g., 0".10), since this situation could be corrected globally via a machine editor. (The hexidecimal-code insertion technique failed because the codes turned out to be unrecognizable to the computer, but no attempt was made to correct this situation after it was decided that three-letter abbreviations should be substituted for the letters anyway.)

Careful checking and sample proofreading of the final catalog showed that many problems were present:

1. Despite the indicated operational precautions, a significant number of records had been shifted left or right to produce misalignment. This not only occurred at the beginnings of records, but began at various points in the records as well; i.e., the shifting seemed to be random and occurrence was unpredictable.

2. Certain characters were frequently misread (not a significant percentage of the total, but enough to require that review and correction procedures be undertaken). Fortunately, most of these involved the substitution of ``S'' for ``8'' and ``5'', ``I'' or ``L'' for ``1'', and ``K'' for ``k'', etc., occurrences that could be identified as out of context via general editor search procedures.

3. A large number of commas had been substituted for decimal points, but these also could be systematically identified as out of place.

4. The machine determined the left margin anew for each page; thus, if an unusual identifier occurred as the first record on a page, groups of records on that page were misaligned.

Attempts were made to write computer programs to find record shifts and correct them automatically, first with a Fortran program, then with assembly language code, but the shifts were so random and sometimes multiple within a record that a universal algorithm could not be developed easily. Since other types of errors also occurred, it was decided to use an editor to simply review terminal screens full of records and fix them in a sequential fashion. This initial editing was done at the ST ScI. No changes were made to the comments fields at that time, however, because the comments were not required for use at ST ScI. In fact, a second version was created there, in which the remarks fields were removed. This short version was then refined by the detection and correction of letters in numerical data fields, etc. The original and refined versions were then processed through a special program that compared records and indicated disagreements. This was not a simple compare program because missing records had been detected and added at various places and because some shifted fields had still not been detected and corrected in the full version. The program was written and run at the ST ScI and the output sent to the ADC for review and analysis.

The analysis was performed not only for the detection of individual errors in the original version, but to formulate general rules for the systematic global correction of cetain types of errors so that each would not require specific editing. In fact, almost all errors occurred in a systematic fashion and could be corrected by a set of predesigned global editing commands.

Since the KDEM read the data exactly as published, the hours of right ascension were missing on all but the first entry of each page. A computer program was written to add these data. The program also checked for the agreement of asterisks in the star identification field for stars having remarks and vice versa. This was done in preparation for separating the remarks to make a second file for notes only. Disagreements in both directions were found and corrected. The remarks themselves were then reviewed and made uniform with regard to alignment, abbreviations for Greek letters, missing punctuation, etc. This was a multistep process, with large numbers of changes being made before printing, review, and final editing.

The First Supplement had been keypuched at the Astronomisches Rechen-Institut in Heidelberg, and was kindly supplied on magnetic tape by H. Jahreiss. The format was different, of course, and the remarks had not been included. Therefore, another program was written to reformat the Supplement data and the corresponding notes were edited in manually. A flag ``1'' to denote ``Supplement 1'' was added to all Supplement records so that they can be distinguished in the merged catalog.

During the course of the work, many errors were found in the original data. Most of these had occurred as a result of misprints and were resolvable by reference to context or to the LTT. Following the merging of the main catalog and the Supplement, and sorting by right ascension (which was approved by Professor Luyten), the remarks were stripped from the data and placed into a separate data set. To simplify the location of particular remarks, the right ascension and declination of each star are duplicated in the remarks file. Since only one tenth of the stars in the catalog have notes, a considerable amount of storage was saved by creating a separate file.

Another problem with the coordinates had to be solved to produce a uniformly formatted data file. This difficulty occurred because of the varying precision reported for stars in the polar and equatorial regions of the published catalog. It would have been unacceptable to convert the lower precision coordinates of the polar regions to equatorial format, and one certainly wouldn't want to convert the seconds of time to fractions of a minute for the equatorial stars. Yet, it is not at all desirable to have two different forms for the coordinates within the catalog. Therefore, the right ascensions are reported in both forms for the entire catalog. This was accomplished by adding a data field to the machine version and computing the alternate form. A flag was added to each record to indicate which form is used in the original published catalog, since this is the accuracy that should be adhered to when using the data.

Following the completion of the merged data file, the catalog was processed through the ADC's General Validation Program to check for miscellaneous problems. This program checks ordering and ranges for all specified values. Not surprisingly, many additional letters were found in numerical fields, even though careful checks were thought to have been made. Additional unresolvable errors were found in position angles and positional data that fell outside the allowable ranges. These problems were submitted to Professor Luyten, who kindly returned to the original card file to resolve them. All entries of this nature, including published addenda incorporated into the machine version, are flagged by the letter ``A'' in each affected record. This is the case whenever a record in the machine version does not agree with its corresponding entry in the published catalog. All such records are listed in Appendix A so that a user can either resolve a discrepancy or identify as an error any true disagreement between the present machine version and the published catalog.

Additional possible and probable errors published by E. W. Weis (1987) where checked and corrected where appropriate. Changes were made as a result of Notes 6, 8, 15–18, 24–25, 28, 39, and 46, while 7, 13, and 38 had been detected and corrected independently; no action was taken for 10, 29, 31, and 33.

Although most of the hundreds of changes made to the published catalog involved only the correction of certain data, some stars have actually been removed from the catalog. These deletions were primarily the result of duplicate entries and included stars that have later been found to display ``no motion'' (defined as motion smaller than the lower cutoff for the catalog). The deleted stars are listed in Appendix A so that users can determine immediately if a star found to be missing in the machine version has been intentionally removed.

3.2  Acknowledgments

The computerization of the NLTT Catalogue was a collaborative effort between the Space Telescope Science Institute (ST ScI) and the Astronomical Data Center of the National Space Science Data Center, with funding for the optical scanning being provided by the former organization. The assistance of Elizabeth D. Siciliano with programming and editing, Victoria G. Laidler and Deborah Kenny with editing, and Karen Myers (all Computer Sciences Corp., ST ScI) with proofreading selected pages, of Steven F. McLaughlin (Computer Sciences Corp., ST ScI) with programming and comparison checks on partial data computerized at the Astronomisches Rechen-Institut (ARI) in Heidelberg, and of Joanne A. Sheridan (formerly of the ADC/NSSDC) with programming, is appreciated.

We also gratefully acknowledge the help of Dr. Hartmut Jahreiss of the ARI in providing machine-readable data from Volumes I and II of the NLTT and all of the First Supplement keypunched in Heidelberg. Dr. Jahreiss also found and sent several short lists of errors detected during the course of his own work with the catalog.

The help of Professor Willem J. Luyten, who confirmed many of the errors detected by returning to the original data and who cheerfully responded to our many inquiries, was invaluable in preparing the corrected machine version. We hope that the collaborative effort of these many persons has produced a permanently useful addition to the long list of important machine-readable astronomical catalogs.

3.3  References

\pagebreak

A  Deletions and Addenda

Table 4 lists the stars (or entries) that have been removed from the machine version of the NLTT catalog. Many of these deletions were circulated in a list entitled ``Errata to the NLTT Catalogue'', distributed by Professor Luyten; additional deletions were received from him via private communication, forwarded to us by Dr. H. Jahreiss of the ARI, or discovered at the ADC during the course of this work. The latter occurrences were in all cases confirmed by Professor Luyten before they were removed. Where specific reasons are known for the deletions, they are given in the table.

\centering

|

    Star  |α1950  |δ1950  |Remarks |
|

          | 1 10 48  |–01 59.5                                     ||
|467- 86   | 1 12 40  |+14 20.9                                     ||
|408-  1   | 1 29 08  |+20 33.5  |Duplicate entry                    |
|-69:  88  | 2 05 42  |–69 06.   |No motion                          |
         | | 2 56 44  |+48 49.2  |Duplicate entry                    |
|+34: 724  | 3 41 12  |+34 48.8  |Duplicate incorrect entry          |
|155-291   | 3 42 22  |+49 30.5                                     ||
|-60:1088  | 4 06 24  |–59 52.   |No motion (10 observations)        |
|161- 75   | 6 52 39  |+47 03.5                                     ||
         | |10 44 58  |+34 59.2  |Duplicate entry                    |
|794- 82   |11 53 46  |–19 22.1                                     ||
|U38-101   |12 23 12  |+38 02.0  |Same as LP266-50 at 12 22 55       |
|320-583   |12 25 45  |+31 28.0                                     ||
|U43-151   |12 40 06  |+43 19.0  |Correct entry at 12 39 25 +43 19.1 |
|-63:1233  |16 47 12  |–64 03.   |No motion (6 observations)         |
         | |17 40 15  |+01 38.0  |No motion                          |
|+45:2877  |18 18 56  |+45 30.0                                     ||
|-74:1278  |18 44 36  |–74 32.   |No motion                          |
|+29:4321  |20 05 06  |+29 34.                                      ||
|106-304   |20 28 02  |+57 40.7  |Duplicate entry                    |
|

Stars Deleted from the NLTT Catalogue

Table 5 lists all stars whose data differ in the machine and published versions. These are all flagged with the letter ``A'' in byte 64 of the data file records. The table has been printed separately and inserted into this document; thus, it begins on the following page.

\pagebreak \centering

|

      1-157     0 17  54 17.9 1  +86 03.0 16.3 17.9 m   0.496  80  A |
|    405-  7     0 20  49 20.8 2  +19 33.6 11.3 12.9 m   0.287 124  A |
|    465- 65     0 37  52 37.9 2  +13 26.5 13.7 14.8 k   0.237  98  A |
|    241- 53     0 42  30 42.5 2  +39 02.0 13.9 15.4 m   0.342 229  A |
|    526- 48     0 58  27 58.5 2  + 8 02.9 17.3 18.4 k   0.245 122  A |
|    +14:167B*   1 02  51 02.9 2  +15 07.4  9.6 10.9 k-m 0.199 175  A |
|    527- 20*    1 11  28 11.5 2  + 6 18.4 16.7 18.0 k-m 0.195 112  A |
|    +30:206B*   1 18  38 18.6 2  +31 04.9 13.0 14.5 m   0.527 103  A |
|    +30:206A    1 18  39 18.7 2  +31 04.9  9.5 10.6 k   0.527 103  A |
|    468- 99*    1 29  48 29.8 2  +14 02.1 16.9 18.5 m   0.220 125  A |
|    468- 98     1 29  48 29.8 2  +14 01.9 11.0 12.3 k-m 0.220 125  A |
|    939-117     1 38  04 38.1 2  -38 18.0 14.2          0.307  72  A |
|    768-453     1 43  52 43.9 2  -16 55.6 12.9 14.6 m   0.187 200  A |
|           *    2 03  48 03.8 2  +44 57.3 10.5 11.8 K5  0.510 148  A |
|Pulk 22- 18     2 45  26 45.4 2  +44 32.8 13.0 14.5 m   0.281 125  A |
|    198-106     2 56  57 57.0 2  +44 06.5 18.4 21.  +m  0.250 135  A |
|    471- 54     3 04  37 04.6 2  +12 33.9 12.7 13.6 g-k 0.328 142  A |
|    831- 38     3 10  13 10.2 2  -21 42.3 14.5 16.3 m   0.302 175  A |
|    831- 39*    3 10  13 10.2 2  -21 42.3 15.3 16.8 m   0.302 175  A |
|    198-289     3 10  15 10.3 2  +44 05.1 11.1 12.0 g-k 0.180 125  A |
|    198-290*    3 10  15 10.3 2  +44 05.1 11.5 12.6 k   0.180 125  A |
|    -35:1111*   3 10  33 10.6 2  -34 59.7 10.2 11.3 k   0.182 186  A |
|    +48:884*    3 15  49 15.8 2  +49 07.7 10.2 11.3 k   0.241 134  A |
|    155-231     3 29  02 29.0 2  +45 14.0 16.3 17.8 m   0.181 144  A |
|    +34:724     3 41  18 41.3 2  +34 49.1 10.9 12.2 k-m 0.250 135  A |
|    474-233     3 56  00 56.0 2  + 9 28.0 12.6 13.7 k   0.183 103  A |
|     31-302*    4 00  30 00.5 2  +71 08.9 15.1 16.4 k-m 0.417 155  A |
|    +11:570     4 03  08 03.1 2  +11 49.9 10.5 12.0 M1  0.200  88  A |
|    833- 51*    4 09  30 09.5 2  -26 10.2 13.1 14.4 k-m 0.195 139  A |
|    358- 60*    4 13  41 13.7 2  +24 39.9 14.5 15.6 k   0.398  85  A |
|    358-152     4 19  24 19.4 2  +22 49.0 18.3 20.8 m   0.182 169  A |
|    302- 49     4 19  59 20.0 2  +31 59.3 12.4 13.9 m   0.271 179  A |
|    415-254     4 33  54 33.9 2  +18 55.0 18.7 21.2 m   0.378 140  A |
|    358-501     4 37  26 38.4 2  +22 09.4 15.8 17.0 k   0.189 113  A |
|    358-499     4 37  33 38.6 2  +24 55.5 13.1 14.7 m   0.207 102  A |
|    891- 12*    4 43  17 43.3 2  -27 31.7 17.1 16.6 b   0.236 246  A |
|    891- 13     4 43  21 43.4 2  -27 31.4 15.1 16.4 k-m 0.236 246  A |
|    360-  9     5 18  44 18.7 2  +23 29.2 12.0 13.5 m   0.243 197  A |
|    119- 43     5 23  52 23.9 2  +55 12.8 14.8 16.8 m+  0.228 228  A |
|    481-  6     6 42  34 42.6 2  + 9 38.9 10.0 11.1 k   0.220 129  A |
|

NLTT Addenda Stars

\pagebreak \centering

|

    -43:2907*   7 02  27 02.5 2  -43 32.5  6.9  7.5 GO  0.412 343  A |
|    -43:3260A*  7 27  39 27.7 2  -43 11.9  3.3  4.6 K5  0.200 340  A |
|     88-308*    7 40  40 40.7 2  +56 53.3 18.7 21.0 m+  0.207 124  A |
|    +68:518*    8 00  47 00.8 2  +68 31.6  7.6  8.0 F5  0.306 224  A |
|    +45:1576    8 20  48 20.8 2  +45 06.8  7.7  8.6 g-k 0.201 202  A |
|    - 9:2563*   8 30  32 30.5 2  - 9 23.4 10.7 12.2 m   0.199 217  A |
|    368- 36     8 38  24 38.4 2  +21 14.5 17.7 19.5 m   0.228 140  A |
|    -18:2482*   8 45  15 45.3 2  -18 48.5 11.0 12.3 k-m 0.180 282  A |
|     18-173*    9 05  41 05.7 2  +78 57.0 18.2 20.0 m   0.319 221  A |
|    + 6:2182    9 27  19 27.2 2  + 5 52.4  7.0  8.2 K2  0.523 282  A |
|    668- 59     9 48  00 48.0 2  - 4 43.6  9.5 10.8 k-m 0.193 291  A |
|    +12:2149*  10 05  43 05.7 2  +12 12.7  1.4  1.2 B8  0.241 270  A |
|    489- 63    10 14  56 14.9 2  + 8 51.0 17.0 18.9 m   0.196 253  A |
|    670-  1    10 20  31 20.5 2  - 7 20.0 15.0 16.6 m   0.325 152  A |
|    490- 68    10 29  30 29.5 2  + 8 46.0 11.7 12.8 k   0.220 151  A |
|    -18:3019*  10 43  19 43.3 2  -18 50.6 11.2 12.8 m   1.980 251  A |
|    791- 55*   10 43  19 43.3 2  -18 50.7 16.2 16.5 f   1.980 251  A |
|    VBs  18*   10 54  26 54.4 2  +42 14.2 15.0 16.8 m   0.352 228  A |
|    102- 26*   10 56  12 56.2 1  -66 31.  12.9 14.4 m   0.24  305  A |
|    168- 47    10 56  28 56.5 2  +44 30.8 17.0 18.1 k   0.240 264  A |
|    +56:1499   11 03  52 03.9 2  +55 59.0  9.2  9.8 GO  0.212 246  A |
|    318-129*   11 18  21 18.4 2  +30 02.5 13.0 14.5 m   0.237 171  A |
|    374- 54*   11 24  47 24.8 2  +23 06.3 12.3 14.5 k-m 0.635 217  A |
|    -31:9083*  11 30  32 30.5 2  -31 34.8  3.7  4.6 G5  0.209 260  A |
|    +36:2219   11 48  33 48.6 2  +35 32.9 10.6 11.9 k-m 0.350 321  A |
|    493- 60*   11 48  42 48.7 2  +13 10.6 19.0 19.0 f   0.210 182  A |
|    673- 42b*  11 50  44 50.7 2  - 7 05.5 19.0 19.4 f   0.538 198  A |
|               11 56  04 56.1 2  +59 50.0 10.7 12.2 m   0.699 271  A |
|Grw +68:4303   11 57  35 57.6 2  +68 05.7 11.5 12.8 k-m 0.192 242  A |
|    -34:7900A* 12 02  42 02.7 2  -34 54.5 10.1 11.2 k   0.210 288  A |
|    -34:7900B* 12 02  42 02.7 2  -34 54.5 13.2 14.3 k   0.210 288  A |
|     64-125*   12 07  28 07.5 2  +68 25.8 15.0 16.3 k-m 0.337 244  A |
|    U 40- 83   12 09  57 10.0 2  +39 57.3 11.4 12.9 M2  0.239 130  A |
|    794- 49    12 16  03 16.1 2  -20 07.5 15.3 16.8 m   0.346 278  A |
|    495- 36    12 19  00 19.0 2  +14 38.5 14.8 16.3 m   0.273 261  A |
|    435- 46*   12 20  17 20.3 2  +17 41.6 14.9 16.4 m   0.323 224  A |
|   U 43-151    12 39  25 39.4 2  +43 19.1 11.6 12.9 k-m 0.257 215  A |
|    436- 19*   12 47  13 47.2 2  +16 29.1 11.8 13.3 m   0.238 189  A |
|     39-231*   12 49  13 49.2 2  +71 34.1 16.2 17.7 m   0.263 286  A |
|    377- 90*   12 49  43 49.7 2  +23 00.4 11.9 13.0 k   0.203 292  A |
|

\pagebreak \centering

|

    378-315    13 00  41 00.7 2  +24 14.2 14.4 16.0 m   0.420 268  A |
|    +59:1488   13 07  16 07.3 2  +58 50.7  9.2 10.5 K2  0.294 225  A |
|    557- 17    13 09  36 09.6 2  + 4 45.6 15.0 15.9 g-k 0.219 260  A |
|          *    13 11  38 11.6 2  + 6 34.6 15.5 16.6 k   0.334 216  A |
|    617- 43    13 20  21 20.4 2  - 0 35.2 18.7 19.0 f-g 0.192 304  A |
|    617- 46    13 21  16 21.3 2  + 0 07.2 19.0 21.0 m   0.193 259  A |
|    379- 57*   13 31  30 31.5 2  +21 24.7 13.0 14.7 m   0.305 245  A |
|    380-  7    13 45  49 45.8 2  +21 53.1 15.9 17.0 k   0.197 199  A |
|    +24:2642*  13 46  12 46.2 2  +24 25.2 11.0 12.5 m   0.203 298  A |
|    324- 26    13 51  22 51.4 2  +27 00.1 18.7 20.7 m   0.185 194  A |
|    439-150    13 59  15 59.3 2  +16 26.5 18.3 21.0 m+  0.304 175  A |
|    439-448    14 06  23 06.4 2  +17 46.2 12.1 13.0 g-k 0.265 214  A |
|    381- 41*   14 17  46 17.8 2  +22 55.9 12.0 12.2 f-g 0.429 248  A |
|    + 2:2820A  14 24  04 24.1 2  + 2 21.2  9.7 10.8 k   0.198 308  A |
|               14 25  23 25.4 2  - 0 09.2 13.1 14.8 m   0.412 283  A |
|    500- 98    14 34  07 34.1 2  +11 15.7 13.4 14.9 m   0.292 118  A |
|    500- 99*   14 34  08 34.1 2  +11 15.9 13.5 15.0 m   0.292 118  A |
|    -64:867B*  14 38  24 38.4 1  -64 46.   8.8  9.9 k   0.31  218  A |
|    +14:2771*  14 39  07 39.1 2  +13 49.1  8.4  8.9 F8  0.397 257  A |
|    500- 80*   14 39  08 39.1 2  +13 50.4 12.8 14.3 m   0.397 257  A |
|    +18:2917B* 14 40  40 40.7 2  +18 17.2 13.8 15.3 m   0.352 151  A |
|    682- 71    15 16  52 16.9 2  - 5 26.2 18.8 20.8 m   0.181 257  A |
|      W 571    15 40  38 40.6 2  + 5 00.4 12.7 13.8 k   0.180 263  A |
|    177-118    15 47  48 47.8 2  +45 36.0 18.7 19.8 k   0.232 246  A |
|    100- 27*   15 49  53 49.9 2  +59 07.1 16.0 17.5 m   0.260 265  A |
|    384- 64    15 50  59 51.0 2  +22 59.9 13.5 15.0 m   0.276 236  A |
|    744- 19*   16 04  29 04.5 2  -14 14.7 11.9 13.2 k-m 0.180 192  A |
|     42-329*   16 15  51 15.9 2  +74 34.5 11.6 12.7 k   0.180 282  A |
|Grw +67:5226*  16 16  39 16.7 2  +67 22.6 11.1 12.7 M3  0.522 279  A |
|    686- 18*   16 48  14 48.2 2  - 8 47.1 12.6 13.5 g-k 0.322 228  A |
|    -10:4463*  17 13  26 13.4 2  -10 48.9 10.3 11.5 K2  0.225 149  A |
|      W 672A   17 16  05 16.1 2  + 2 00.2 14.9 14.7 DA  0.512 237  A |
|      W 672B*  17 16  06 16.1 2  + 2 00.0 13.2 15.4 M3  0.512 237  A |
|   L 485-9*    17 21  35 21.6 2  -35 26.1 14.5 15.6 k   0.316 186  A |
|    747- 27    17 23  40 23.7 2  -13 07.0 10.9 12.2 k-m 0.187 136  A |
|     24- 50*   17 40  48 40.8 2  +76 45.9 14.8 16.3 m   0.218 351  A |
|    748- 34*   17 47  22 47.4 2  -13 39.1 13.8 15.3 m   0.202 212  A |
|    748- 35    17 48  08 48.1 2  -12 29.5 13.5 14.8 k-m 0.349 224  A |
|    + 4:3561a* 17 55  23 55.4 2  + 4 33.4  9.2 11.2 M5  0.310 356  A |
|    139- 42    18 02  27 02.5 2  +53 24.6 12.0 13.1 k   0.222 289  A |
|    449- 10    18 04  35 04.6 2  +17 20.3 14.7 15.8 k   0.234   3  A |
|

\pagebreak \centering

|

    570- 18*   18 29  27 29.5 2  + 8 33.9 13.1 13.7 g   0.285 196  A |
|   L 489-68    18 34  57 35.0 2  -39 07.8      14.0     0.188  73  A |
|    630- 16    18 36  09 36.2 2  + 1 56.5 13.5 15.0 m   0.232 186  A |
|    450- 12    18 39  00 39.0 2  +16 18.7 10.1 11.2 k   0.231 176  A |
|    867-  2*   18 43  59 44.0 2  -23 33.7 13.0 14.3 k-m 0.448 232  A |
|      R 154*   18 46  45 46.8 2  -23 53.2 11.0 12.7 M6  0.720 107  A |
|    811- 16    18 50  13 50.2 2  -16 19.2 13.3 14.6 k-m 0.202 199  A |
|    336-  6*   19 05  45 05.8 2  +32 26.8 11.6 13.3 M3  1.635  49  A |
|    +11:3777*  19 11  46 11.8 2  +11 43.5 10.5 11.6 k   0.251 228  A |
|    104-443    19 25  21 25.4 2  +58 06.5 16.0 17.5 m   0.356 222  A |
|    +50:2848*  19 40  32 40.5 2  +50 24.0  6.4  7.0 GO  0.214 223  A |
|    925- 35*   19 40  36 40.6 2  -29 14.7 12.8 14.6 m   0.223 165  A |
|    869- 29    19 42  34 42.6 2  -24 11.3 17.8 20.5 m+  0.240 213  A |
|    926-  4    19 47  28 47.5 2  -29 24.2 14.0 15.3 k-m 3.204 187  A |
|    870- 64    20 00  54 00.9 2  -23 48.5 13.2 13.8 g   0.185 237  A |
|   L1573- 24   20 02  33 02.6 2  +38 00.1 13.8 14.9 k   0.320 202  A |
|               20 16  04 16.1 2  +23 09.4 10.7 12.2 m   0.258   4  A |
|    755- 36*   20 32  51 32.9 2  -13 06.8 14.5 15.6 k   0.322 134  A |
|      R 764    20 40  31 40.5 2  +52 05.8 10.8 11.7 g-k 0.226 345  A |
|    +45:3245A  20 40  39 40.7 2  +45 38.7  7.7  8.3 GO  0.205 200  A |
|    +38:4344*  21 04  40 04.7 2  +38 29.8  5.8  7.2 K8  5.204  52  A |
|    186-  1*   21 07  00 07.0 2  +46 57.4 11.7 12.9 K3  0.497 120  A |
|    457- 11*   21 09  42 09.7 2  +18 10.1 15.7 16.8 k   0.195 179  A |
|    285- 11*   21 15  24 15.4 2  +34 33.7 14.3 15.8 m   0.240  50  A |
|    517- 35    21 17  42 17.7 2  +13 04.9 14.7 16.5 m   0.248   0  A |
|               21 26  53 26.1 2  +39 40.3 13.7 15.2 m   0.280 101  A |
|    -68:2241*  21 34  18 34.3 1  -68 17.   8.5 10.0 m   0.22  101  A |
|    463- 20    21 34  40 34.7 2  +20 43.7 11.5 12.6 k   0.204 103  A |
|    398- 17    21 37  52 37.9 2  +21 32.6 18.9 20.6 m   0.202  48  A |
|    + 5:4868   21 44  56 44.9 2  + 6 22.2 11.0 11.6 g   0.280  64  A |
|      W 945    21 45  58 46.0 2  +50 00.3 13.7 15.2 m   0.823  58  A |
|           *   21 51  55 51.9 2  +41 32.8 10.6 11.9 K8  0.533 133  A |
|      R 263    21 54  17 54.3 2  +19 32.3 13.4 14.7 k-m 0.477 194  A |
|    283-  3    22 00  14 00.2 1  -50 51.7 11.9 13.4 m   0.58  148  A |
|   Grw  65: *  22 04  25 04.4 2  +65 23.9 12.3 13.4 k   0.393 308  A |
|   1032-120    22 20  06 20.1 2  -43 42.5 14.0          0.863 117  A |
|   640-  76*   22 30  16 30.3 2  + 2 03.2 14.3 16.2 m   0.180  94  A |
|   -28:17852*  22 34  37 34.6 2  -28 20.3 11.1 12.4 k-m 0.386 121  A |
|   -28:17856*  22 34  50 34.8 2  -28 20.9 10.0 11.3 k-m 0.386 121  A |
|    27-403*    22 39  59 40.0 2  +75 31.4 15.7 17.0 k   0.180  71  A |
|

\pagebreak \centering

|

   +51:3485    22 48  37 48.6 2  +51 47.6  7.1  7.7 GO  0.220  36  A |
|   400- 70*    22 50  40 50.7 2  +27 10.9 17.1 19.4 m+  0.181  91  A |
|   701- 84*    22 53  05 53.1 2  - 6 29.4 16.0 17.5 m   0.268 120  A |
|   -26:16395A* 22 55  05 55.1 2  -26 22.3  7.4  8.0 GO  0.338 148  A |
|   +11:4913    22 56  48 56.8 2  +11 55.6  8.5  9.1 GO  0.371 114  A |
|   +40:4962    22 57  22 57.4 2  +40 47.2 11.0 12.5 m   0.260 224  A |
|   521- 59     22 59  10 59.2 2  +15 11.9 17.2 18.7 m   0.248 219  A |
|   985-108     23 09  22 09.4 2  -38 15.6 11.8 13.1 k-m 0.180 140  A |
|   +20:5292    23 10  49 10.8 2  +20 40.4  9.9 10.8 G5  0.253 154  A |
|               23 15  00 15.0 2  +37 56.6 10.9 12.9 m   0.470 196  A |
|   643- 33*    23 37  23 37.4 2  - 1 43.7 18.5 21.0 m+  0.210 214  A |
|   +46:4175P   23 45  43 45.7 2  +46 48.4  9.3 10.4 k   0.236 125  A |
|   +59: 68a     0 27  32 27.5 2  +59 54.5  9.1  9.5 F5  0.206  62  A |
|   -57:395*     1 57  06 57.1 1  -57 07.   8.0  8.9 G0  0.20   45  A |
|   -57:396*     1 57  06 57.1 1  -57 07.   8.3  9.2 G5  0.20   45  A |
|     W 1059     7 57  23 57.4 2  +29 09.1 12.4 13.0 G0  0.481 184  A |
|   375- 23     11 39  43 39.7 2  +23 18.2 10.8 12.3 m   0.202 281  A |
|   -48:7070    11 59  42 59.7 1  -48 27.   9.2 10.1 G5  0.23  268  A |
|   -26:10310   14 25  48 25.8 2  -27 01.6 11.6 12.7 k   0.270 248  A |
|   -73:1474*   19 48  42 48.7 1  -73 58.   9.6  9.7 K0  0.21  126  A |
|   - 6:5663*   21 01  19 01.3 2  - 6 20.0  9.7 11.3 m   0.455 235  A |
|   290- 60     23 31  07 31.1 2  +32 17.7 13.7 14.8 k   0.261  95  A |
|               23 47  23 47.4 2  +29 17.8 15.2 15.8 g   0.531 191  A |
|