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	66 Ori, HR 2145, HD 41380, SAO 113430, BD +4 1116, FK5: 230
constellation	Orion

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

position, motion, parallax:

position (J2000)	RA: 6h 4min 58.4sec	DEC: +4° 9' 31''
position (B1900)	RA: 5h 59min 41.3sec	DEC: +4° 9' 52''
proper motion (J2000)	RA: -0.001 arcsec/a	DEC: -0.005 arcsec/a
radial velocity	33 km/s note: suspected variable radial velocity
galactic coordinates	longitude: 203.85°	latitude: -8.38°

magnitude

visual magnitude

5.63 (V on UBV Johnson system)

spectral / color information

spectral class	G4III
B-V-magnitude	1.04
U-B-magnitude	0.75

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

position, motion, parallax:

position (J2000)	RA: 6h 4min 58.352sec	DEC: +4° 9' 31.05''	±0.06 arcsec	source: 15
proper motion (J2000)	RA: -0.0001 arcsec/a	DEC: -0.005 arcsec/a		source: 25
radial velocity	33 km/s			source: 25
galactic coord. (B1950)	longitude: 203.86°	latitude: -8.38°

magnitude:

visual	5.63 (observed)	source: 25
photovisual	5.7	source: 2
photographic	5.6	source: 16

spectral information:

spectral class	K0		source: 96
Morgan-Keenan	G4III		source: 25
B-magnitude	6.67 ±0.05	B-V-magnitude	1.04
U-magnitude	7.42 ±0.05	U-B-magnitude	0.75

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
16	PPM North and PPM South Catalogs and PPM Supplement
Roser, S., and U. Bastian, "Catalogue of Positions and Proper Motions," A&AS, Vol. 74, p. 449, 1988, and Bastian, U., et al., "Catalogue of Positions and Proper Motions - South," 1993
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: 6h 2min 19.755sec	DEC: +4° 9' 47.18''	±0.005 arcsec
position (J2000)	RA: 6h 4min 58.351sec	DEC: +4° 9' 30.92''
proper motion B1950 (FK4)	RA: -0.0003 arcsec/a	DEC: -0.006 arcsec/a	±0.001 arcsec/a in RA ±0.001 arcsec/a in DEC
proper motion J2000 (FK5)	RA: -0.0001 arcsec/a	DEC: -0.006 arcsec/a
source of proper motion data	Determined by source catalog

magnitude:

visual	5.7 (accuracy: 2 decimals)
source of visual magnitude data	Taken from the "Henry Draper Catalogue".

spectral information:

spectral class	K0
source of spectral data	Taken from the Henry Draper Catalogue or no spectrum in source catalog.

catalogues

source catalogue	FK4, catalogue number: 230
Durchmusterung	BD+04 1116
Boss General Catalogue	7704
Henry Draper Catalogue	41380