Mu Andromedae

**μ Andromedae A**
Observation data Epoch J2000
Image:Mu Andromedae.jpg Mu Andromedae
Constellation (pronunciation)	Andromeda
Right ascension	00h 56m 45.2115s
Declination	+38° 29' 57.641"'
Apparent magnitude (V)	3.86
Characteristics
Spectral type	A5V
U-B color index	0.15
B-V color index	0.13
Variable type	None
Astrometry
Radial velocity (R_v)	7.6 km/s
Proper motion (μ)	RA: 152.78 mas/yr Dec.: 36.82 mas/yr
Parallax (π)	23.93 ± 1.22 mas
Distance	136 ± 7 ly (42 ± 2 pc)
Absolute magnitude (M_V)	4.0
Details
Mass	3.5 M_☉
Radius	2.5 R_☉
Surface gravity (log g)	?
Luminosity	80 L_☉
Temperature	7.500 - 10.000 K
Metallicity	?
Rotation	?
Age	? years
Visual binary orbit
Companion	μ Andromedae B
Semimajor axis (a)	42.4"
Eccentricity (e)	0
Inclination (i)	307°
Visual binary orbit
Companion	μ Andromedae C
Semimajor axis (a)	34.2"
Eccentricity (e)	0
Inclination (i)	126°
Visual binary orbit
Companion	μ Andromedae D
Semimajor axis (a)	266.7"
Eccentricity (e)	0
Inclination (i)	40°
Other designations
37 Andromedae, HR 269, HD 5448, BD+37°175, FK5 33, HIP 4436, SAO 54281, GC 1122, ADS 788, CCDM 00568+3830.
Database references
SIMBAD	data
Database references
SIMBAD	data

Mu Andromedae (μ And / μ Andromedae) is a star in the constellation Andromeda. It is approximately 136 light years from Earth.

Mu Andromedae is a white A-type main sequence dwarf with an apparent magnitude of +3.86.

[edit] Location

The star's location is shown in the following chart of the Andromeda constellation:

Andromeda Constellation

NAME	Right ascension	Declination	Apparent magnitude (V)	Database references
μ Andromedae B (ADS 788 B)	00^h 56^m 41.6^s	+38° 30' 21	12.9	Simbad
μ Andromedae C (ADS 788 C)	00^h 56^m 46.8^s	+38° 30' 35	11.4	Simbad
μ Andromedae D (ADS 788 D)	00^h 56^m 48.5^s	+38° 30' 50	9.8	Simbad