zeta Cassiopeiae

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

position, motion, parallax:

position (J2000)	RA: 0h 36min 58.3sec	DEC: +53° 53' 49''
position (B1900)	RA: 0h 31min 23.7sec	DEC: +53° 20' 48''
proper motion (J2000)	RA: 0.019 arcsec/a	DEC: -0.009 arcsec/a
radial velocity	2 km/s note: spectroscopic binaries
rotational velocity	18 km/s (uncertain) (variable)
trigonometric parallax	0.004 arcsec
galactic coordinates	longitude: 120.78°	latitude: -8.91°

magnitude

visual magnitude

3.66
(V on UBV Johnson system)

spectral / color information

variability information

variable star identification

225

note (category: variability):

3.59 - 3.68V.

miscellaneous information

note (category: group membership):

Cas-Tau OB1.

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

position, motion, parallax:

magnitude:

visual	3.66 (observed)	source: 25
photovisual	3.7	source: 2

spectral information:

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: 0h 34min 10.333sec	DEC: +53° 37' 19.42''	±0.004 arcsec
position (J2000)	RA: 0h 36min 58.297sec	DEC: +53° 53' 48.86''
proper motion B1950 (FK4)	RA: 0.0021 arcsec/a	DEC: -0.005 arcsec/a	±0.001 arcsec/a in RA ±0.001 arcsec/a in DEC
proper motion J2000 (FK5)	RA: 0.0022 arcsec/a	DEC: -0.01 arcsec/a
source of proper motion data	Determined by source catalog

magnitude:

visual	3.7 (accuracy: 2 decimals)
source of visual magnitude data	Taken from the "Henry Draper Catalogue".

spectral information:

spectral class	B3
source of spectral data	Taken from the Henry Draper Catalogue or no spectrum in source catalog.

catalogues

data from Combined General Catalogue of Variable Stars (suspected variables) (Kholopov+ 1998)

position:

position (equinox 1950.0)

RA: 0h 34min 10.3sec

DEC: +53° 37' 19''

variability informations:

magnitute at max. brightness	3.59
magnitute at min. brightness	3.68
photometric system	visual, photovisual or Johnson's V

spectral information

spectral class

references

to a study

180994D (designation: zeta CAS)

catalogues and names	z Cas, NSV 00225, 17 Cas, HR 153, HD 3360, SAO 21566, BD +53 105, FK5: 17
constellation	Cassiopeia