catalogues and names

The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version)

SKY2000 - Master Star Catalog

Smithsonian Astrophysical Observatory Star Catalog

catalogues and names

catalogues and names	q Crt, 21 Crt, HR 4468, HD 100889, SAO 138296, BD -8 3202, FK5: 1299
constellation	Crater

data from The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version) (Hoffleit+, 1991)

position, motion, parallax:

position (J2000)	RA: 11h 36min 40.9sec	DEC: -9° 48' 8''
position (B1900)	RA: 11h 31min 36.5sec	DEC: -9° 14' 57''
proper motion (J2000)	RA: -0.061 arcsec/a	DEC: 0.008 arcsec/a
radial velocity	1 km/s note: spectroscopic binaries
rotational velocity	192 km/s (uncertain) (variable)
galactic coordinates	longitude: 274.25°	latitude: 48.86°

magnitude

visual magnitude

4.7 (V on UBV Johnson system)

spectral / color information

spectral class	B9.5Vn
B-V-magnitude	-0.08
U-B-magnitude	-0.18
R-I-magnitude

double/multiple star system information

note (category: spectroscopic binaries):

About 150d.

data from SKY2000 - Master Star Catalog (Myers+ 1997)

position, motion, parallax:

position (J2000)	RA: 11h 36min 40.915sec	DEC: -9° 48' 8.16''	±0.06 arcsec	source: 15
proper motion (J2000)	RA: -0.0041 arcsec/a	DEC: 0.008 arcsec/a		source: 25
radial velocity	1 km/s			source: 25
galactic coord. (B1950)	longitude: 274.26°	latitude: 48.86°

magnitude:

visual	4.7 (observed)	source: 25
photovisual	4.8	source: 2
photographic	4.8	source: 2

spectral information:

spectral class	B9		source: 96
Morgan-Keenan	B9.5Vn		source: 25
B-magnitude	4.62 ±0.05	B-V-magnitude	-0.08
U-magnitude	4.44 ±0.05	U-B-magnitude	-0.18

sources:

2	HD and HDE Catalogs
Cannon, A.J., and E.C. Pickering, Harvard Annals, Vols 91-99, 1918-24, Cambridge, Massachusetts: Harvard University; Cannon, A.J., Harvard Annals, Vol. 100, 1925-36, Cambridge, Massachusetts: Harvard University; and Cannon, A.J., and M. Walton Mayall, Harvard Annals, Vol. 112, 1949, Cambridge, Massachusetts: Harvard University
15	FK5, FK5 Extension and FK5 Supplement
Fricke, W., H. Schwan and T. Lederle, "Fifth Fundamental Catalogue (FK5), Part I. The Basic Fundamental Stars," Veroff. Astronomisches Recheninstitut, No. 32, Heidelberg, Germany, 1988, and Fricke, W., H. Schwan, and T.E. Corbin, "Fifth Fundamental Catalogue (FK5), Part II. The FK5 Extension," Veröff. Astronomisches Recheninstitut, No. 33, Heidelberg, Germany, 1991
25	Bright Star Catalogue, 5th edition
Hoffleit, D. and Warren, W.H. Jr., The Bright Star Catalogue, 5th Revised Edition, Version 2, 1994
96	SAO or HD/HDE Catalog
Reference from Value 1 or Reference from Value 2

data from Smithsonian Astrophysical Observatory Star Catalog (SAO Staff 1966; USNO, ADC 1990)

position and proper motion:

position (B1950)	RA: 11h 34min 8.577sec	DEC: -9° 31' 32.04''	±0.006 arcsec
position (J2000)	RA: 11h 36min 40.907sec	DEC: -9° 48' 8.11''
proper motion B1950 (FK4)	RA: -0.0045 arcsec/a	DEC: 0.003 arcsec/a	±0.001 arcsec/a in RA ±0.001 arcsec/a in DEC
proper motion J2000 (FK5)	RA: -0.0042 arcsec/a	DEC: 0.009 arcsec/a
source of proper motion data	Determined by source catalog

magnitude:

visual	4.8 (accuracy: 2 decimals)
source of visual magnitude data	Taken from the "Henry Draper Catalogue".

spectral information:

spectral class	B9
source of spectral data	Taken from the Henry Draper Catalogue or no spectrum in source catalog.

catalogues

source catalogue	FK4, catalogue number: 1299
Durchmusterung	BD-08 3202
Boss General Catalogue	15921
Henry Draper Catalogue	100889