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III/80 Michigan Catalogue of HD stars, Vol.3 (Houk, 1982)
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Catalogue of two-dimensional spectral types for the HD stars. Vol.3
Houk N.
<Ann Arbor, Dept. of Astronomy, Univ. of Michigan (1982)>
=1982MSS...C03....0H
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ADC_Keywords: MK spectral classification; Plate data; Spectral types
Description:
The catalog contains spectral types for the HD stars from declinations -40
to -26 deg. The stars were classified visually by N. Houk on
objective-prism plates taken at a dispersion of 108 A/mm with a resolution
of about 2 A/mm. The only difference in form between this volume and Volume
2 is that Smithsonian Astrophysical Observatory Star Catalog (SAO) numbers
are given instead of Cape Photographic Durchmusterung (CPD) numbers. The
catalog also includes photographic magnitudes, right ascension and
declination (B1900.0), precession, galactic coordinates, and cross
identifications to the numbering systems of the Cordoba Durchmusterung and
SAO.
See also:
3031B : Volume 1 of this catalog (additional declination zones)
3051B : Volume 2 of this catalog (additional declination zones)
3133 : Volume 4 of this catalog (additional declination zones)
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
adc.doc 74 866 Documentation by Robert S. Hill
vol3.dat 127 30314 The Catalogue (vol.3)
rem3.dat 255 4837 Remarks to Vol.3
plates.dat 32 418 List of plates
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Byte-by-byte Description of file: vol3.dat
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Bytes Format Units Label Explanations
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1- 6 I6 --- HD Henry Draper Catalog (HD) number
7 A1 --- Case [*] * = sp. type lower case in printed ver.
8 A1 --- n_SpType [+] + if spectral type is from HD Catalog
9- 26 A18 --- SpType Spectral type
27 A1 --- Ave_Flag [A] A = classification used is an average.
28 I1 --- q_SpType [1/4]? Quality of the classification,
see adc.doc
29- 33 A5 --- Remark Remark (see adc.doc Table 5 for description)
35- 40 A6 mag Ptg Photographic magnitude from HD catalog
41 A1 --- Var_Flag [V] 'V' if star is known or suspected variable
43- 44 I2 h RAh Hours RA, epoch 1900.0
46- 47 I2 min RAm Minutes RA, epoch 1900.0
49- 52 F4.1 s RAs Seconds RA, epoch 1900.0
53 A1 --- FlagPos [*] the '*' indicates a position known
to an arc-minute
54 A1 --- DE- Sign Dec, epoch 1900.0
55- 56 I2 deg DEd Degrees Dec, epoch 1900.0
58- 59 I2 arcmin DEm Minutes Dec, epoch 1900.0
61- 62 I2 arcsec DEs ? Seconds Dec, epoch 1900.0
(blank if FlagPos is flagged with '*')
64- 67 I4 0.01min/yr precRAm Centennial precession in RA, minutes
69- 72 F4.1 0.01s/yr precRAs Centennial precession in RA, seconds
73 A1 --- FlagPrec [*] * if precession in RA is given to 0.1
minutes/century in the published catalog.
74 A1 0.01arcmin/yr precDE- Centennial precession in Dec, sign
75- 76 I2 0.01arcmin/yr precDEm ? Centennial precession in Dec, minutes
78- 79 I2 0.01arcsec/yr precDEs ? Centennial precession in Dec, seconds
81- 85 F5.1 deg GLON Galactic longitude
87- 91 F5.1 deg GLAT Galactic latitude
93-102 A10 --- CD Cordoba Durchmusterung
identification (CD-ZZNNNNN)
106-111 I6 --- SAO [1/258997]? SAO Catalog number
113-115 A3 --- Plate1 Plate code #1 (see file plates.dat)
117-119 A3 --- Plate2 Plate code #2 (see file plates.dat)
121-123 A3 --- Plate3 Plate code #3 (see file plates.dat)
125-127 A3 --- Plate4 Plate code #4 (see file plates.dat)
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Byte-by-byte Description of file: rem3.dat
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Bytes Format Units Label Explanations
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1- 6 I6 --- HD Henry Draper Catalog (HD) number
8-255 A248 --- Remark Remarks in free form text
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Byte-by-byte Description of file: plates.dat
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Bytes Format Units Label Explanations
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1- 3 A3 --- Code Plate code
7- 11 I5 --- Number Plate Number
15- 32 A18 --- Date Exposure date
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Historical Notes:
* 09-Nov-1993: list of plates added at CDS
* 08-Dec-1994: list of plates corrected by Shiro Nishimura [ADAC/NAOJ]
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(End) Francois Ochsenbein [CDS] 08-Dec-1994