catalogues and names

Smithsonian Astrophysical Observatory Star Catalog

Combined General Catalogue of Variable Stars (suspected variables)

catalogues and names

catalogues and names

NSV 00680, SAO 75054, BD +22 289

data from Smithsonian Astrophysical Observatory Star Catalog (SAO Staff 1966; USNO, ADC 1990)

position and proper motion:

position (B1950)	RA: 1h 55min 10,102sec	DEC: +23° 21' 37,71''	±0,035 arcsec
position (2001,21)	RA: 1h 58min 2sec	DEC: +23° 36' 34''	JD: 2451987,35
position (J2000)	RA: 1h 57min 57,612sec	DEC: +23° 36' 12,99''
proper motion B1950 (FK4)	RA: -0,0075 arcsec/a	DEC: 0,005 arcsec/a	±0,006 arcsec/a in RA ±0,007 arcsec/a in DEC
proper motion J2000 (FK5)	RA: -0,0075 arcsec/a	DEC: 0,001 arcsec/a
source of proper motion data	Determined by source catalog

magnitude:

visual	7,6 (accuracy: 1 decimal)
source of visual magnitude data	Based on Durchmusterung magnitudes and visual estimates

spectral information:

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

catalogues

source catalogue	GC, catalogue number: 2367
Durchmusterung	BD+22 289
Boss General Catalogue	2367

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

position:

position (equinox 1950.0)

RA: 1h 55min 10,1sec

DEC: +23° 21' 38''

variability informations:

variability type	CST:
magnitute at max. brightness	7,3
magnitute at min. brightness	7,4
photometric system	visual, photovisual or Johnson's V

spectral information

spectral class

F7

references

to a study

550927D (designation: ADS 1563B)

miscanellous

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

variability type description

variability type	description
CST	Nonvariable stars, formerly suspected to be variable and hastily designated. Further observations have not confirmed their variability.