upsilon Andromedae

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

position, motion, parallax:

position (J2000)	RA: 1h 36min 47.8sec	DEC: +41° 24' 20''
position (B1900)	RA: 1h 30min 55.5sec	DEC: +40° 54' 19''
proper motion (J2000)	RA: -0.171 arcsec/a	DEC: -0.382 arcsec/a
radial velocity	-28 km/s note: spectroscopic binaries note: orbital data avaible
rotational velocity	8 km/s (uncertain) (variable)
trigonometric parallax	0.062 arcsec
galactic coordinates	longitude: 132°	latitude: -20.66°

magnitude

visual magnitude

4.09
(V on UBV Johnson system)

spectral / color information

spectral class	F8V
B-V-magnitude	0.54
U-B-magnitude	0.06
R-I-magnitude
IR-note	object is infrared source (NASA merged infrared catalogue, Schmitz et al., 1978)

double/multiple star system information

number of components of multiple star system	3
separation	114 arcsec
mag difference (of double or brightest multiple)	8.4
component ID	AB
note	Worley (1978) update of the IDS

note (category: double and multiple data):

Both visual companions probably optical.

note (category: spectroscopic binaries):

197.9d, K 1.8k/s, V0 -27.7k/s, asini 4.79. Orbit questioned by Morbey and Griffin (1987, ApJ, 317, 343). Unresolved by speckle interferometry.

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

position, motion, parallax:

magnitude:

visual	4.09 (observed)	source: 25
photovisual	4.2	source: 2

spectral information:

double/multiple star system information:

source of data: 19

separation between brightest and second brightest component	114 arcsec
magnitude difference between brightest and second brightest component	8.5
position angle	128 °

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
19	WDS Catalog
Worley, C.E., and G.G. Douglass, Washington Catalog of Visual Double Stars 1996.0, United States Naval Observatory, 1996
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: 1h 33min 51.142sec	DEC: +41° 9' 22.13''	±0.005 arcsec
position (J2000)	RA: 1h 36min 47.831sec	DEC: +41° 24' 19.56''
proper motion B1950 (FK4)	RA: -0.0153 arcsec/a	DEC: -0.379 arcsec/a	±0.001 arcsec/a in RA ±0.001 arcsec/a in DEC
proper motion J2000 (FK5)	RA: -0.0154 arcsec/a	DEC: -0.383 arcsec/a
source of proper motion data	Determined by source catalog

magnitude:

visual	4.2 (accuracy: 2 decimals)
source of visual magnitude data	Taken from the "Henry Draper Catalogue".

spectral information:

spectral class	G0
source of spectral data	Taken from the Henry Draper Catalogue or no spectrum in source catalog.

catalogues

data from The Washington Visual Double Star Catalog, 1996.0 (Worley+, 1996)

position and proper motion:

position (J2000)	RA: 1h 36.8min	DEC: +41° 24'
proper motion (J2000)	RA: -0.171 arcsec/a	DEC: -0.382 arcsec/a

double/multiple star system information:

discoverer information:

notes:

note	Upsilon And. A is a spectroscopic binary. Proper motion of B +016 +014.

catalogues and names	u And, 50 And, HR 458, HD 9826, SAO 37362, BD +40 332, FK5: 1045, WDS 01368+4124A
constellation	Andromeda