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	w UMa, 45 UMa, HR 4248, HD 94334, SAO 43512, BD +43 2058, FK5: 2870
constellation	Ursa Major

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

position, motion, parallax:

position (J2000)	RA: 10h 53min 58.7sec	DEC: +43° 11' 24''
position (B1900)	RA: 10h 48min 13.4sec	DEC: +43° 43' 21''
proper motion (J2000)	RA: 0.045 arcsec/a	DEC: -0.021 arcsec/a
radial velocity	-17 km/s note: spectroscopic binaries note: orbital data avaible
rotational velocity	35 km/s (uncertain) (variable)
trigonometric parallax	0.014 arcsec
galactic coordinates	longitude: 171.16°	latitude: 61.35°

magnitude

visual magnitude

4.71 (V on UBV Johnson system)

spectral / color information

spectral class	A1V s
B-V-magnitude	-0.05
U-B-magnitude	-0.05
R-I-magnitude

double/multiple star system information

note (category: spectroscopic binaries):

15.8307d, K 22.2k/s, V0 -18.7k/s, asini 4.59.

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

position, motion, parallax:

position (J2000)	RA: 10h 53min 58.744sec	DEC: +43° 11' 23.98''	±0.22 arcsec	source: 15
proper motion (J2000)	RA: 0.0041 arcsec/a	DEC: -0.021 arcsec/a		source: 25
radial velocity	-17 km/s			source: 25
trigonometric parallax	0.014 arcsec		±0.001 arcsec	source: 25
galactic coord. (B1950)	longitude: 171.16°	latitude: 61.35°

magnitude:

visual	4.71 (observed)	source: 25
photovisual	4.8	source: 2

spectral information:

spectral class	A0		source: 96
Morgan-Keenan	A1Vs		source: 25
B-magnitude	4.66 ±0.05	B-V-magnitude	-0.05
U-magnitude	4.61 ±0.05	U-B-magnitude	-0.05

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: 10h 51min 6.507sec	DEC: +43° 27' 23.96''	±0.011 arcsec
position (J2000)	RA: 10h 53min 58.746sec	DEC: +43° 11' 23.85''
proper motion B1950 (FK4)	RA: 0.0041 arcsec/a	DEC: -0.028 arcsec/a	±0.002 arcsec/a in RA ±0.002 arcsec/a in DEC
proper motion J2000 (FK5)	RA: 0.0043 arcsec/a	DEC: -0.024 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 Harvard or San Luis photometry.

spectral information:

spectral class	A0
source of spectral data	Taken from the Henry Draper Catalogue or no spectrum in source catalog.

catalogues

source catalogue	GC, catalogue number: 14974
Durchmusterung	BD+43 2058
Boss General Catalogue	14974
Henry Draper Catalogue	94334