III/222 14th General Catalogue of MK Spectral Classification (Buscombe 1999)
MK spectral classifications, 14th General Catalogue, Epoch 2000,
including UBV photometry
Buscombe W.
<Northwestern Univ., Evanston, Illinois ISBN 0-939160-12-9 (1999)>
ADC_Keywords: Spectral types ; Photometry, UBV
Description:
This is the fourteenth 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 ∼1997 to 1999. 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
mk14.dat 80 17544 The 14th General Catalogue
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See also:
III/206 : 13th General Catalog of MK Spectral Classification (Buscombe 1998)
Byte-by-byte Description of file: mk14.dat
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Bytes Format Units Label Explanations
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1- 11 A11 --- Id ? Identification for star (1)
14- 15 I2 h RAh Right Ascension (B2000) hour
17- 20 F4.1 min RAm Right Ascension (B2000) minute
21 A1 --- u_RAm [:] uncertain, tenths digit not listed
23 A1 --- DE- Declination sign
24- 25 I2 deg DEd Declination (B2000) degree
27- 28 I2 arcmin DEm ? Declination (B2000) minute
30- 51 A22 --- SpType MK type (2)
52 A1 --- n_SpType [*] '*' for a standard
53- 57 F5.2 mag Vmag ? Johnson V magnitude
58 A1 --- u_Vmag [m] mean flag (3)
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. The prefix 'D' is for white dwarfs. 'SD' is for subdwarfs.
'WL' indicates 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]
Note (3): The letter 'm' for mean indicates mean magnitude of a variable
star. (The print version indicates mean magnitudes within angle
brackets like <14.8>).
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History:
* ADC received electronic data files for this catalog from William Buscombe
in July 1999, and one file was resent in January 2001. Some
corrections were applied by Dr. Buscombe in March 2001, based on
recommendations from S. Nishimura of Japan's Astronomical Data
Analysis Center. These corrections have been made to the ADC version
of the catalog.
Acknowledgements:
Courtesy of William Buscombe, Dearborn Observatory
with computing assistance from Bruce E. Foster.
(End) N. Odegard [SSDOO/ADC] 27-Jun-2001