zeta Ursae Minoris

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

position, motion, parallax:

position (J2000)	RA: 15h 44min 3.5sec	DEC: +77° 47' 40''
position (B1900)	RA: 15h 47min 37.2sec	DEC: +78° 6' 8''
proper motion (J2000)	RA: 0.02 arcsec/a	DEC: -0.001 arcsec/a
radial velocity	-13 km/s note: variable radial velocity
rotational velocity	206 km/s (uncertain) (variable)
trigonometric parallax	0.016 arcsec
galactic coordinates	longitude: 112.68°	latitude: 35.66°

magnitude

visual magnitude

4.32
(V on UBV Johnson system)

spectral / color information

variability information

variable star identification

7263

note (category: variability):

Delta Sct?

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

position, motion, parallax:

magnitude:

visual	4.32 (observed)	source: 25
photovisual	4.3	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: 15h 45min 47.812sec	DEC: +77° 56' 57.09''	±0.003 arcsec
position (J2000)	RA: 15h 44min 3.517sec	DEC: +77° 47' 40.18''
proper motion B1950 (FK4)	RA: 0.0045 arcsec/a	DEC: -0.003 arcsec/a	±0.001 arcsec/a in RA ±0.001 arcsec/a in DEC
proper motion J2000 (FK5)	RA: 0.0064 arcsec/a	DEC: 0 arcsec/a
source of proper motion data	Determined by source catalog

magnitude:

visual	4.3 (accuracy: 2 decimals)
source of visual magnitude data	Taken from the "Henry Draper Catalogue".

spectral information:

spectral class	A2
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: 15h 45min 47.8sec

DEC: +77° 56' 57''

variability informations:

variability type	-
magnitute at max. brightness	4.3
magnitute at min. brightness
photometric system	visual, photovisual or Johnson's V

spectral information

spectral class

references

to a study

0225D (designation: zeta UMI)

miscanellous

There are notes in the published catalog (Kukarkin et al.(1982)).

catalogues and names	z UMi, NSV 07263, 16 UMi, HR 5903, HD 142105, SAO 8328, BD +78 527, FK5: 590
constellation	Ursa Minor