HR 222

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

position, motion, parallax:

position (J2000)	RA: 0h 48min 23sec	DEC: +5° 16' 50''
position (B1900)	RA: 0h 43min 8.2sec	DEC: +4° 46' 0''
proper motion (J2000)	RA: 0.758 arcsec/a	DEC: -1.146 arcsec/a
radial velocity	-13 km/s note: variable radial velocity
trigonometric parallax	0.145 arcsec
galactic coordinates	longitude: 121.49°	latitude: -57.57°

magnitude

visual magnitude

5.75
(V on UBV Johnson system)

spectral / color information

double/multiple star system information

separation	181.2 arcsec
mag difference (of double or brightest multiple)	4.6
note	Worley (1978) update of the IDS

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

position, motion, parallax:

magnitude:

visual	5.75 (observed)	source: 25
photovisual	5.8	source: 2

spectral information:

double/multiple star system information:

source of data: 19

separation between brightest and second brightest component	181.2 arcsec
magnitude difference between brightest and second brightest component	4.6
position angle	208 °

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: 0h 45min 45.454sec	DEC: +5° 1' 25.87''	±0.006 arcsec
position (J2000)	RA: 0h 48min 22.98sec	DEC: +5° 16' 49.62''
proper motion B1950 (FK4)	RA: 0.0506 arcsec/a	DEC: -1.142 arcsec/a	±0.001 arcsec/a in RA ±0.001 arcsec/a in DEC
proper motion J2000 (FK5)	RA: 0.0507 arcsec/a	DEC: -1.148 arcsec/a
source of proper motion data	Determined by source catalog

magnitude:

visual	5.8 (accuracy: 2 decimals)
source of visual magnitude data	Taken from the "Henry Draper Catalogue".

spectral information:

spectral class	G5
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: 0h 48.4min	DEC: +5° 17'
proper motion (J2000)	RA: 0.758 arcsec/a	DEC: 0 arcsec/a

double/multiple star system information:

discoverer information:

notes:

note	Aa-B: Zeta And. A is an eclipsing and spectroscopic binary, P = 17.8d. The new visual pair, Aa, may be physical, but Aa-B is probably optical. Proper motion +758 -1146.