I/79 Lowell Proper Motion Survey 8991 Northern Stars (Giclas 1971)
Lowell Proper Motion Survey: 8991 Stars with m > 8, PM > 0.26"/year in the Northern Hemisphere Giclas H.L., Burnham Jr. R., Thomas N.G. <Lowell Obs., Flagstaff, AZ (1971)>
ADC_Keywords: Positional data ; Proper motions Description: The catalog contains a summary of many individual papers published in the Lowell Observatory Bulletins in the years 1958 to 1970. The data in the machine-readable version include observed positions, proper motions, estimated photographic magnitudes and colors, and references to identifications in other catalogs. Photoelectric data on the UBV system are included for many stars, but no attempt was made to find all existing photometry. The notes.dat file was computerized at the ADC by keying the notes directly to disk storage. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file north.dat 100 8989 Catalog Data table2.txt 78 75 Key to reference abbreviations table3.txt 67 57 Supplementary parallax codes notes.dat 80 2429 Notes
See also: I/112 : Southern Hemisphere Lowell Proper Motion Catalog (Giclas+ 1978) Byte-by-byte Description of file: north.dat
Bytes Format Units Label Explanations
1- 8 A8 --- G *Original G number assigned 9- 10 I2 h RAh *Right ascension 1950 (hours) 11- 12 I2 min RAm Right ascension 1950 (minutes) 13- 14 I2 s RAs Right ascension 1950 (seconds) 15 A1 --- DE- Sign of declination 16- 17 I2 deg DEd Declination 1950 (degrees) 18- 21 F4.1 arcmin DEm Declination 22- 26 F5.2 arcsec/yr pm Annual proper motion 27- 29 I3 deg pmPA *The position angle of proper motion 30- 33 F4.1 mag Pmag Estimated photographic magnitude 34- 35 I2 --- col *[-1/4] Estimated color class 36- 37 I2 --- o_pm *Number of observations 39- 74 A36 --- osource *Or equivalent 75 A1 --- flag *[*] '*' indicates a note in file notes.dat 76 A1 --- code *Parallax Code 78- 82 F5.2 mag Vmag *?Photoelectric V magnitude 84- 88 F5.2 mag B-V ?B-V color (blank if no data) 90- 94 F5.2 mag U-B ?U-B color (blank if no data) 98-100 A3 --- r_Vmag *Ref code for the magnitude source
Note on G: Original G number assigned to the star on the plate region where it was first Found. Stars which were subsequently found on later plates were assigned new G numbers; however, in this catalog all duplicate observations have been combined and averaged with the original G numbers retained. Byte 1 of the field always contains a "G" and byte 5 always always contains a "-". The number in bytes 2-4 is the plate number, while that in bytes 6-8 is the star number on the plate. Note on RAh: Epochs are given for plate regions in the original Lowell Bulletin numbers reported in the CHT column of the published catalog. Note on pmPA: PA of proper motion, measured in the normal way from North through East. Note on col: Color class is on a scale of -1 (bluest) to +4 (reddest). Almost all stars having color class -1 have subsequently been classified as white dwarfs. An approximate relationship between estimated color and UBV colors is given in the published catalog. Note on o_pm: Observations from different plate regions contained in the mean. A value of unity denotes a single observation from one plate pair. Actually, there are never as many as ten observations, so byte 33 is always blank. Note on osource: References for other sources containing information and/or data about the star. References are separated by blank characters and consist mainly of designations in other catalogs. A symbol "+" following the last reference indicates additional references in the notes to the catalog. The reference key is given in table2.txt. Note on flag: Note in the published catalog which gives additional information about the star. See notes.dat for a description of the machine-readable notes. Note on code: Indicates if the star is on a parallax program of some observatory, thus denoting the possibility that a trigonometric parallax may eventually be be available. The following codes are employed: A Allegheny Obs. L Lick M Leander McCormick N U.S. Naval S Sproul V Van Vleck Y Yerkes A digit of ≥ 2 (= n) indicates the star to be on the working lists of n observatories. The codes for the n observatories are listed in table3.txt. Note on Vmag: Photoelectric V magnitude obtained from the source given in bytes 95-97. UBV data are given for reference purposes only and no attempt for completeness has been made. Blank if no data reported. Note on r_Vmag: The magnitude source reference key is given below. A digit ≥ 2 denotes multiple references (given in the notes.dat). Note: the appended minus signs on some codes are not explained in the published catalog. Lowell Proper Motion Survey, Northern Hemisphere. Magnitude Source Reference Key E1 Eggen, O. J. 1963, Astron. J. 68. 483. E2 Eggen, O. J. 1966, Royal Obs. Bull. No. 120. E3 Eggen, O. J. 1968, Astrophys. J. Suppl. 16, 97 (No. 143). E4 Eggen, O. J. 1969, Astrophys. J. Suppl. 19, 31 (No. 168). E5 Eggen, O. J. 1968, Astrophys. J. 153, 195. EG1 Eggen, O. J. and Greenstein, J. L. 1965, Astrophys. J. 141, 83. EG2 Eggen, O. J. and Greenstein, J. L. 1965, Astrophys. J. 142, 925. EG3 Eggen, O. J. and Greenstein, J. L. 1967, Astrophys. J. 150, 927. ES Eggen, O. J. and Sandage, A. 1967, Astrophys. J. 148, 911. G1 Greenstein, J. L. 1969, Astrophys. J. 158, 281. S1 Sandage, A. 1964, Astrophys. J. 139, 442. S2 Sandage, A. 1969, Astrophys. J. 158, 1115. SK Sandage, A. and Kowal, C. 1962, private communications. WG Gliese W. 1969, Catalogue of Nearby Stars, Veroff. Astron. Rechen-Inst. Heidelberg, No. 22. WA Wanner, J. F. 1964, Ph.D. Thesis, Harvard University.
Byte-by-byte Description of file: notes.dat
Bytes Format Units Label Explanations
1- 8 A8 --- G G Star number, as in table north.dat 9- 10 A2 --- m_G *Shared note 11- 12 I2 --- count *Line counter 13- 80 A68 --- Text Text of remark
Note on m_G: As described for bytes 1-8 in catalog.dat. If more than one consecutive G number is referred to, a slash (/) appears in byte 9 and the final digit of the second G number is given in byte 10. If more than two consecutive G numbers are included, a hyphen appears in byte 9 and the final digit of the last number in byte 10. A comma is given in byte 9 if two non-consecutive G numbers are referenced. Bytes 9 and 10 may also contain component identifications for double stars having the same G number, e.g. "AB". Note on count: Used to sequentially number remarks for the same star(s). Can be used as a secondary sort field to reorder the notes properly if they become disorganized.
Remarks: The first record in catalog.dat, containing only the word "MUCAT", was deleted. Multiple 80-byte records were combined while deleting a test digit in byte 80 indicating an additional record, and redundant G numbers on multiple records were removed. The machine-readable catalog contains 8989 records. A count of the stars in the published catalog (113 full pages with 75 stars per page and 68 stars on last page) gives 8993; however, stars are missing on pages 28, 29 and 42, resulting in 8989 stars total. Preceding zeroes were added to the G numbers to match the published catalog. There was no distinction between blank and 0.00 color indices. Initially, all zeroes were converted to blanks for B-V and U-B, then the published catalog was scanned for valid 0.00 values and the values were added for the appropriate stars. Plus signs were added to the declinations (byte 15), the color class positive values, and to all positive color indices. The following miscellaneous corrections to the published catalog were made to the machine file: G066-036 photoelectric data deleted as per published version G213-017 Declination degrees corrected from +39 to +37 G128-032 added BD+32 4584-5 The notes file was prepared by keying the published remarks directly to disk and adding to the catalog as a second file. Acknowledgements: The original ADC documentation (1983) by Wayne H. Warren, Jr. was used to create this ReadMe file. He also did the original data reformatting. References: Giclas, H. L. 1958, Lowell Obs. Bull. 4, 1 (No. 89). Giclas, H. L., Burnham, R. Jr. and Thomas, N. G. 1961, Lowell Obs. Bull. 5, 61 (No. 112). Giclas, H. L., Burnham, R. Jr. and Thomas, N. G. 1963, Lowell Obs. Bull. 6, 1 (No. 120). Giclas, H. L., Burnham, R. Jr. and Thomas, N. G. 1964, Lowell Obs. Bull. 6, 103 (No. 122). Giclas, H. L., Burnham, R. Jr. and Thomas, N. G. 1964, Lowell Obs. Bull. 6, 135 (No. 124). Giclas, H. L., Burnham, R. Jr. and Thomas, N. G. 1965, Lowell Obs. Bull. 6, 197 (No. 129). Giclas, H. L., Burnham, R. Jr. and Thomas, N. G. 1966, Lowell Obs. Bull. 6, 233 (No. 132). Giclas, H. L., Burnham, R. Jr. and Thomas, N. G. 1966, Lowell Obs. Bull. 6, 271 (No. 136). Giclas, H. L., Burnham, R. Jr. and Thomas, N. G. 1967, Lowell Obs. Bull. 7, 1 (No. 138). Giclas, H. L., Burnham, R. Jr. and Thomas, N. G. 1967, Lowell Obs. Bull. 7, 31 (No. 140). Giclas, H. L., Burnham, R. Jr. and Thomas, N. G. 1968, Lowell Obs. Bull. 7, 67 (No. 144). Giclas, H. L., Burnham, R. Jr. and Thomas, N. G. 1969, Lowell Obs. Bull. 7, 129 (No. 150). Giclas, H. L., Burnham, R. Jr. and Thomas, N. G. 1970, Lowell Obs. Bull. 7, 149 (No. 151). Giclas, H. L., Burnham, R. Jr. and Thomas, N. G. 1970, Lowell Obs. Bull. 7, 165, (No. 152). Giclas, H. L., Burnham, R. Jr. and Thomas, N. G. 1971, Lowell Proper Motion Survey, Northern Hemisphere, The G Numbered Stars (Flagstaff: Lowell Observatory). Giclas, H. L., Slaughter, C. D. and Burnham, R. Jr 1959, Lowell Obs. Bull. 4, 136 (No. 102).
(End) Melissa C. Larkin [SSDOO/ADC] 10-Mar-1997
|The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line|