sigma Andromedae

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

position, motion, parallax:

position (J2000)	RA: 0h 18min 19.7sec	DEC: +36° 47' 7''
position (B1900)	RA: 0h 13min 6sec	DEC: +36° 13' 51''
proper motion (J2000)	RA: -0.063 arcsec/a	DEC: -0.041 arcsec/a
radial velocity	-8 km/s note: spectroscopic binaries
rotational velocity	103 km/s (uncertain) (variable)
trigonometric parallax	0.023 arcsec
galactic coordinates	longitude: 115.59°	latitude: -25.61°

magnitude

visual magnitude

4.52
(V on UBV Johnson system)

spectral / color information

variability information

variable star identification

118

note (category: variability):

Delta Sct?, 4.49 - 4.55V.

miscellaneous information

note (category: group membership):

Sirius group; UMa stream.

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

position, motion, parallax:

magnitude:

visual	4.52 (observed)	source: 25
photovisual	4.5	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 15min 42.479sec	DEC: +36° 30' 29.75''	±0.005 arcsec
position (J2000)	RA: 0h 18min 19.676sec	DEC: +36° 47' 7.08''
proper motion B1950 (FK4)	RA: -0.0052 arcsec/a	DEC: -0.035 arcsec/a	±0.001 arcsec/a in RA ±0.002 arcsec/a in DEC
proper motion J2000 (FK5)	RA: -0.0051 arcsec/a	DEC: -0.039 arcsec/a
source of proper motion data	Determined by source catalog

magnitude:

visual	4.5 (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: 0h 15min 42.5sec

DEC: +36° 30' 30''

variability informations:

magnitute at max. brightness	4.49
magnitute at min. brightness	4.55
photometric system	visual, photovisual or Johnson's V

spectral information

spectral class

references

to a study

140098D (designation: SIGMA AND)

catalogues and names	s And, NSV 00118, 25 And, HR 68, HD 1404, SAO 53798, BD +35 44, FK5: 1005
constellation	Andromeda