8 Andromedae: Difference between revisions

8 Andromedae
	;
Observation data; Epoch J2000 Equinox J2000
Constellation	Andromeda
Right ascension	23h 17m 44.647s
Declination	+49° 00' 55.079"'
Apparent magnitude (V)	4.85
Characteristics
Spectral type	M2III
U−B color index	1.98
B−V color index	1.67
Variable type	Variable Star
Astrometry
Radial velocity (Rv)	-8.0 km/s
Proper motion (μ)	RA: 34.48 mas/yr ; Dec.: 6.74 mas/yr
Parallax (π)	4.98 ± 0.65 mas
Distance	approx. 650 ly ; (approx. 200 pc)
Absolute magnitude (MV)	6.52
Details
Mass	? M☉
Radius	? R☉
Luminosity	? L☉
Surface gravity (log g)	? cgs
Temperature	? K
Metallicity	?
Rotation	?
Age	? years
Orbit
Companion	8 Andromedae B
Semi-major axis (a)	7.6″
Inclination (i)	161°
Orbit
Companion	8 Andromedae C
Semi-major axis (a)	219.4″
Inclination (i)	131°
Orbit
Companion	8 Andromedae D
Semi-major axis (a)	54.9″
Inclination (i)	232°
Orbit
Companion	8 Andromedae E
Semi-major axis (a)	14″
Inclination (i)	173°
Orbit
Companion	8 Andromedae F
Semi-major axis (a)	6.4″
Inclination (i)	185°
Other designations
	ZI 2130, GC 32432, IRAS 23154+4844, SAO 52871, 8 And, GCRV 14610, IRC +50462, ADS 16656 A, JP11 3614, UBV M 26942, AG+48° 2032, HD 219734, 2MASS J23174463+4900549, UBV 19954, BD+48° 3991, HIC 115022, NSV 14484, CCDM J23178+4901A, HIP 115022, PLX 5637, CSI+48° 3991 1, HR 8860, PPM 64030, CSV 102239, IDS 23131+4828 A, RAFGL 3065.
Database references
SIMBAD	data

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Inline

Revision as of 07:53, 16 December 2009

8 Andromedae is a red giant star in the constellation Andromeda. Its apparent magnitude is 4.85.

NAME	Right ascension	Declination	Apparent magnitude (V)	Database references
8 Andromedae B (BD+48 3991B)	23^h 17^m 44.7^s	+49° 00' 47	13	Simbad
8 Andromedae C (BD+48 3991C)	23^h 18^m 01.2565^s	+48° 58' 31.299	10.7	Simbad
8 Andromedae D (BD+48 3991D)	23^h 17^m 40.0^s	+49° 00' 20	11.6	Simbad
8 Andromedae E (CCDM J23178+4901P) Star in double system	23^h 17^m 44.7^s	+49° 00' 40	16.0	Simbad

This variable star–related article is a stub. You can help Wikipedia by expanding it.

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 {{Starbox end}}
-'''8 Andromedae''' is a [[red giant star]] in the [[constellation]] [[Andromeda (constellation)|Andromeda]].  Its [[apparent magnitude]] is 4.85.
+'''8 Andromedae''' is a [[red giant]] star in the [[constellation]] [[Andromeda (constellation)|Andromeda]].  Its [[apparent magnitude]] is 4.85.
 ==Component==