III/80 Michigan Catalogue of HD stars, Vol.3 (Houk, 1982)
Catalogue of two-dimensional spectral types for the HD stars. Vol.3
Houk N.
<Ann Arbor, Dept. of Astronomy, Univ. of Michigan (1982)>
ADC_Keywords: MK spectral classification
Description:
Please refer to the 'doc.txt' file by Robert S. Hill
See also:
III/31 : Michigan Catalogue, Vol.1 (-90/-53deg, Houk N., 1975)
III/51 : Michigan Catalogue, Vol.2 (-53/-40deg, Houk N., 1978)
III/133 : Michigan Catalogue, Vol.4 (-26/-12deg, Houk N., 1988)
III/214 : Michigan Catalogue, Vol.5 (-12/+05deg, Houk N., 1999)
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
doc.txt 74 866 Documentation by Robert S. Hill
vol3.dat 127 30314 The Catalogue (vol.3)
rem3.dat 255 4837 Remarks to Vol.3
plates3.dat 41 418 List of plates
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Byte-per-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 [*] if sp. type has lower case in printed ver.
8 A1 --- n_SpType [+] if spectral type is from HD Catalog
9- 26 A18 --- SpType MK Spectral type
27 A1 --- Aflag [A] if classification used is an average.
28 I1 --- q_SpType [1/4]? Quality of the classification,
see doc.txt (1=best)
29- 33 A5 --- Remark Remark (1)
35- 40 A6 mag Ptg Photographic magnitude from HD catalog
41 A1 --- Vflag [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 --- uPos [*] 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 [0/60[? 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 the centennial precession
in right ascension 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 plates3)
117-119 A3 --- Plate2 Plate code #2 (see file plates3)
121-123 A3 --- Plate3 Plate code #3 (see file plates3)
125-127 A3 --- Plate4 Plate code #4 (see file plates3)
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Note (1): Details in the file "doc.txt". The codes used are:
B = bright star (remark includes HR, Bayer/Flamsteed names)
L = information from Literature
R = Remarks related to the spectrum
D = duplicity (double or multiple star)
V = variability
t = spectral type taken from other source (marked with a dagger)
O = other remarks
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Byte-per-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-per-byte Description of file: plates3.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- 41 A27 --- 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]
* 01-May-2005: typo in spectral type of HD 53832 (B.9 IV -> B9IV,
communicated by Brian Skiff)
(End) Francois Ochsenbein [CDS] 08-Dec-1994