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	51 Ori, HR 1963, HD 37984, SAO 113056, BD +1 1105, FK5: 2427
constellation	Orion

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

position, motion, parallax:

position (J2000)	RA: 5h 42min 28.6sec	DEC: +1° 28' 29''
position (B1900)	RA: 5h 37min 18.3sec	DEC: +1° 25' 34''
proper motion (J2000)	RA: -0.058 arcsec/a	DEC: -0.015 arcsec/a
radial velocity	88 km/s note: suspected variable radial velocity
rotational velocity	<17 km/s (uncertain) (variable)
trigonometric parallax	0.015 arcsec
galactic coordinates	longitude: 203.54°	latitude: -14.59°

magnitude

visual magnitude

4.91 (V on UBV Johnson system)

spectral / color information

spectral class	K1III
B-V-magnitude	1.17
U-B-magnitude	1.06
R-I-magnitude
IR-note	object is infrared source (NASA merged infrared catalogue, Schmitz et al., 1978)

miscellaneous information

note (category: group membership):

Ori OB1.

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

position, motion, parallax:

position (J2000)	RA: 5h 42min 28.626sec	DEC: +1° 28' 28.57''	±0.22 arcsec	source: 15
proper motion (J2000)	RA: -0.0039 arcsec/a	DEC: -0.015 arcsec/a		source: 25
radial velocity	88 km/s			source: 25
trigonometric parallax	0.015 arcsec		±0.002 arcsec	source: 25
galactic coord. (B1950)	longitude: 203.54°	latitude: -14.59°

magnitude:

visual	4.91 (observed)	source: 25
photovisual	5.2	source: 2

spectral information:

spectral class	G5		source: 96
Morgan-Keenan	K1III		source: 25
B-magnitude	6.08 ±0.05	B-V-magnitude	1.17
U-magnitude	7.14 ±0.05	U-B-magnitude	1.06

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: 5h 39min 53.374sec	DEC: +1° 27' 7.18''	±0.019 arcsec
position (J2000)	RA: 5h 42min 28.64sec	DEC: +1° 28' 28.67''
proper motion B1950 (FK4)	RA: -0.0038 arcsec/a	DEC: -0.014 arcsec/a	±0.003 arcsec/a in RA ±0.003 arcsec/a in DEC
proper motion J2000 (FK5)	RA: -0.0035 arcsec/a	DEC: -0.014 arcsec/a
source of proper motion data	Determined by source catalog

magnitude:

visual	5.2 (accuracy: 2 decimals)
source of visual magnitude data	Taken from Harvard or San Luis photometry.

spectral information:

spectral class	G5
source of spectral data	Taken from the Henry Draper Catalogue or no spectrum in source catalog.

catalogues

source catalogue	GC, catalogue number: 7136
Durchmusterung	BD+01 1105
Boss General Catalogue	7136
Henry Draper Catalogue	37984