Mu Andromedae
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| Observation data Epoch J2000 Equinox J2000 |
|
|---|---|
| Constellation | 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 (Rv) | 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 (MV) | 0.75 |
| 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 |
| Orbit | |
| Companion | μ Andromedae B |
| Semimajor axis (a) | 42.4" |
| Eccentricity (e) | 0 |
| Inclination (i) | 307° |
| Orbit | |
| Companion | μ Andromedae C |
| Semimajor axis (a) | 34.2" |
| Eccentricity (e) | 0 |
| Inclination (i) | 126° |
| Orbit | |
| Companion | μ Andromedae D |
| Semimajor axis (a) | 266.7" |
| Eccentricity (e) | 0 |
| Inclination (i) | 40° |
| Other designations | |
| 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:
[edit] References
[edit] Components
| NAME | Right ascension | Declination | Apparent magnitude (V) | Spectral type | Database references |
|---|---|---|---|---|---|
| μ Andromedae B (ADS 788 B) | 00h 56m 41.6s | +38° 30' 21 | 12.9 | Simbad | |
| μ Andromedae C (ADS 788 C) | 00h 56m 46.8s | +38° 30' 35 | 11.4 | Simbad | |
| μ Andromedae D (ADS 788 D) | 00h 56m 48.5s | +38° 30' 50 | 9.8 | Simbad |
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