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III/135A    Henry Draper Catalogue and Extension (Cannon+ 1918-1924; ADC 1989)

Henry Draper Catalogue and Extension 1 (HD,HDE) Cannon A.J., Pickering E.C. <Harv. Ann. 91-100 (1918-1924)>
ADC_Keywords: Spectral types ; Surveys Description: An updated, corrected, and extended machine-readable version of The Henry Draper Catalogue (HD, Cannon & Pickering 1918-1924) is available with documentation from the Astronomical Data Center (ADC) as of April 1989. Published and unpublished errors discovered in the previous version have been corrected; letters indicating supplemental stars in the BD have been moved to a new byte to distinguish them from double-star components; and the machine-readable portion of The Henry Draper Extension (HDE) (HA 100; Cannon 1925-1936) has been converted to the same format as the main catalog with additional data added as necessary. The catalog lists HD numbers, Durchmusterung numbers, positions for equinox B1900, photovisual and photographic magnitudes, spectral types, codes for the intensity of the spectra used, and remarks. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file adc.doc 80 840 Documentation by Nancy G. Roman and Wayne H. Warren Jr (1985) catalog.dat 48 272150 The catalogue
See also: III/182 : HDE Charts: positions, proper motions (Nesterov+ 1995) Byte-by-byte Description of file: catalog.dat
Bytes Format Units Label Explanations
1- 6 I6 --- HD [1/272150]+ Henry Draper Catalog (HD) number 7- 18 A12 --- DM Durchmusterung identification (1) 19- 20 I2 h RAh Hours RA, equinox B1900, epoch 1900.0 21- 23 I3 0.1min RAdm Deci-Minutes RA, equinox B1900, epoch 1900.0 24 A1 --- DE- Sign Dec, equinox B1900, epoch 1900.0 25- 26 I2 deg DEd Degrees Dec, equinox B1900, epoch 1900.0 27- 28 I2 arcmin DEm Minutes Dec, equinox B1900, epoch 1900.0 29 I1 --- q_Ptm [0/1]? Code for Ptm: 0 = measured, 1 = value inferred from Ptg and spectral type 30- 34 F5.2 mag Ptm ? Photovisual magnitude (2) 35 A1 --- n_Ptm [C] 'C' if Ptm is combined value with Ptg 36 I1 --- q_Ptg [0/1]? Code for Ptg: 0 = measured, 1 = value inferred from Ptm and spectral type 37- 41 F5.2 mag Ptg ? Photographic magnitude (2) 42 A1 --- n_Ptg [C] 'C' if Ptg is combined value for this entry and the following or preceding entry 43- 45 A3 --- SpT Spectral type 46- 47 A2 --- Int [ 0-9B] Photographic intensity of spectrum (3) 48 A1 --- Rem [DEGMR*] Remarks, see note (4)
Note (1): the DM number is composed of: Bytes 7-8 = catalog ID, 'BD', 'CD', 'CP', or 'AG' for AGK1 stars (zones +50 to +59) not in the BD Bytes 9-16 = Durchmusterung catalog number, SZZNNNNN. For AG zones, the ZZ field contains the lowest declination zone in the appropriate catalog (50 or 55) Byte 17 = BD supplement letter (catalogue I/71 by Warren and Kress) Byte 18 = DM component identification Note (2): codes used for the magnitudes: 20.0 = nebula (Neb in published catalog) 30.0 = variable (var. in published catalog) 40.0 = nova (Nov. in published catalog) 50.0 = cluster (Cl. in published catalog) blank = no value in published catalog Note (3): this intensity is a number between 1 and 10, but has the value 14 for HD 35041, and value 'B' for HD 37788 and 41366 Note (4): The codes are: D = Entry deleted (see adc.doc) E = Image at edge of plate G = Position and BD number taken directly from AGK1 and precessed to 1900 M = Multiple images used (see adc.doc) R = Remark in the published catalog * = Spectral type refers a cluster, nebula or nebulous star. (see adc.doc)
Remarks: According to W. H. Warren Jr., 194629 is identical to 194648 and the latter should be deleted. References: Cannon, A.J. 1925-1936, The Henry Draper Extension, Ann. Astron. Obs. Harvard College, 100 Cannon, A.J., and Pickering, E.C. 1918-1924, The Henry Draper Catalogue, Ann. Astron. Obs. Harvard College, 91-99 Historical Notes: * February 1985: see the attached file "adc.doc" by Nancy G. Roman and Wayne H. Warren Jr. (document NSSDC/WDC-A-R&S 84-18); its section 4 described the story of the catalog. * October 1993: the following few modifications have been added at CDS (a) insertion of the decimal point for Ptm and Ptg fields (b) three stars had a declination "-6860" corrected to "-6900": 269534, 269975, 270350 (c) a 0 digit missing in the DEm field of stars 16110 16112 16126 16131 16138 16150 16156 16183 16187 16189 has been added (d) the spectrum of star 4815 has been corrected * 16-Apr-1994: Following a note by Sh. Nishimura (NAO Japan), about 60 remarks E and P (emission and peculiar) were changed to lowercase letters. BD designation of star 237694 have been changed from BD+567 1286 to BD+56 1286. * 02-Jan-1996: List of Errata by W.H. Warren Jr. * 08-Nov-1996: (version 'A') The following errors reported by W. H. Warren were corrected:
HD Datum For Read Remarks ---------------------------------------------- 11502* DM BD+18 243 B BD+18 243 A 11503* DM BD+18 243 A BD+18 243 B 43436* DM BD+67 424 A BD+67 423a DMSup * 50227* DM BD+23 1523 A BD+23 1523 No comp. 51295* DM BD+23 1554 A BD+23 1554 No comp. 54052* DM BD+06 1526 A BD+06 1526 No comp. 135780* Dec -41 57 -41 47 MHD2 144069* DM BD-10 4237 A BD-10 4237 B 144070* DM BD-10 4237 B BD-10 4237 A 159000* DM BD+44 2722 B BD+44 2721a DMSup * 159001* DM BD+44 2722 B BD+44 2722 192788* DM BD+30 3960 A BD+30 3960a DMSup * 193877* DM BD+01 3984 BD-00 3984 194629* DM BD+74 858 A BD+74 858 AB dupes 194648* Delete (use code "D") =194629 228312* DM --- BD+37 3826a BDSup. * 242495* DM --- BD+17 893 AG+17 472 267646* DM BD+27 1293 BD+27 1293 A 267647* DM BD+27 1294 A BD+27 1293 B 267648* DM BD+27 1294 B BD+27 1294 from WDS 268053* DM --- BD+33 1455 AG+33 725

(End) Francois Ochsenbein [CDS] 11-Oct-1993
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

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