omega Andromedae

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

position, motion, parallax:

magnitude

visual magnitude

4.83
(V on UBV Johnson system)

spectral / color information

double/multiple star system information

number of components of multiple star system	4
separation	119 arcsec
mag difference (of double or brightest multiple)	6.6
component ID	AC

note (category: double and multiple data):

AB binary, B 11.7v at 2"; CD 10.4, 10.4 sep. 4.9" at 120" from A.

miscellaneous information

note (category: group membership):

Hyades moving group.

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

position, motion, parallax:

magnitude:

visual	4.83 (observed)	source: 25
photovisual	5	source: 2

spectral information:

double/multiple star system information:

source of data: 19

separation between brightest and second brightest component	1.8 arcsec
magnitude difference between brightest and second brightest component	6.9
position angle	118 °

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 24min 39.155sec	DEC: +45° 8' 57.55''	±0.005 arcsec
position (J2000)	RA: 1h 27min 39.324sec	DEC: +45° 24' 24.32''
proper motion B1950 (FK4)	RA: 0.0328 arcsec/a	DEC: -0.1 arcsec/a	±0.001 arcsec/a in RA ±0.001 arcsec/a in DEC
proper motion J2000 (FK5)	RA: 0.033 arcsec/a	DEC: -0.106 arcsec/a
source of proper motion data	Determined by source catalog

magnitude:

visual	5 (accuracy: 2 decimals)
source of visual magnitude data	Taken from the "Henry Draper Catalogue".

spectral information:

spectral class	F5
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 27.7min	DEC: +45° 24'
proper motion (J2000)	RA: 0.351 arcsec/a	DEC: -0.107 arcsec/a

double/multiple star system information:

discoverer information:

notes:

note	Omega And.

catalogues and names	w And, 48 And, HR 417, HD 8799, SAO 37228, BD +44 307, FK5: 1040, WDS 01277+4524A
constellation	Andromeda