III/225 15th General Catalogue of MK Spectral Classification (Buscombe 2001)
MK spectral classifications, 15th General Catalogue, Epoch 2000,
including UBV photometry
Buscombe W.
<Northwestern Univ., Evanston, Illinois (2001)>
=2001yCat.3225....0B 2001yCat.3225....0B
ADC_Keywords: Spectral types ; Photometry, UBV
Description:
This is the fifteenth in a series of catalogs of MK spectral types and UBV
photometry issued from Dearborn Observatory. It is based on an extensive
search of the literature published from ∼1999 to 2000. Each catalog is
essentially self-contained, with its separate selection of stars listed
in order of increasing right ascension. Some classifications (indicated
between parentheses) are inferred from photometric or astrometric
considerations. The preferred identification is from the Henry Draper
Catalog or the General Catalog of Variable Stars, with a Durchmusterung
or other alternative as space permits.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
mk15.dat 80 17658 The 15th General Catalogue
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See also:
III/52 : 3rd General Catalogue of MK Spectral Classification (Buscombe 1977)
III/228 : 4th General Catalogue of MK Spectral Classification (Buscombe 1980)
III/189 : 7th-11th Catalogues of MK Spectral Classification (Buscombe+ 1994)
III/223 : 12th General Catalog of MK Spectral Classification (Buscombe+ 1995)
III/206 : 13th General Catalog of MK Spectral Classification (Buscombe 1998)
III/222 : 14th General Catalog of MK Spectral Classification (Buscombe 1999)
Byte-by-byte Description of file: mk15.dat
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Bytes Format Units Label Explanations
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1 A1 --- m_Id ? Multiplicity of star (1)
2- 11 A10 --- Id ? Identification for star (1)
14- 15 I2 h RAh Right Ascension (2000) hour
17- 20 F4.1 min RAm Right Ascension (2000) minute
21 A1 --- u_RAm [:] uncertain, tenths digit not listed
23 A1 --- DE- Declination sign
24- 25 I2 deg DEd Declination (2000) degree
27- 28 I2 arcmin DEm ? Declination (2000) minute
30- 51 A22 --- SpType MK type (2)
52 A1 --- n_SpType [*] '*' for a standard
53- 58 F6.3 mag Vmag ? Johnson V magnitude
59- 63 F5.2 mag B-V ? Johnson B-V color
65- 69 F5.2 mag U-B ? Johnson U-B color
75- 80 A6 --- Name Alternate identification, usually HD (1)
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Note (1): The alphabetical letters starting at byte 1 (column 1 of Id)
refer to the components of multiple systems included in SpType, while
those at byte 76 (column 2 of Name) indicate which were included in
the photometry.
Note (2): A colon denotes uncertainty, parentheses denote an inferred
assignment. Prefixes are:
'D': white dwarfs.
'SD': subdwarfs.
'WL': metal poverty compared to solar composition:
'WLS': -0.3 > [Fe/H] > -0.9
'WLM': -0.9 > [Fe/H] > -1.5
'WLE': -1.5 > [Fe/H]
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Remarks:
ADC received electronic data files for this catalog from William Buscombe
in September 2001.
Acknowledgements:
Courtesy of William Buscombe, Dearborn Observatory
with computing assistance from Bruce E. Foster.
(End) N. Odegard [SSDOO/ADC] 30-Oct-2001