III/225 15th General Catalogue of MK Spectral Classification (Buscombe 2001) ================================================================================ MK spectral classifications, 15th General Catalogue, Epoch 2000, including UBV photometry Buscombe W. =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: -------------------------------------------------------------------------------- FileName Lrecl Records Explanations -------------------------------------------------------------------------------- ReadMe 80 . This file mk15.dat 80 17658 The 15th General Catalogue -------------------------------------------------------------------------------- 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 -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 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) -------------------------------------------------------------------------------- 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] -------------------------------------------------------------------------------- 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