Location of π Andromedae (center). |
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Observation data Epoch J2000 Equinox J2000 |
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Constellation | Andromeda |
Right ascension | 00h 36m 52.8497s |
Declination | +33° 43′ 09.637″ |
Apparent magnitude (V) | 4.335 |
Characteristics | |
Spectral type | B5V |
U−B color index | -0.55 |
B−V color index | -0.14 |
Variable type | None |
Astrometry | |
Radial velocity (Rv) | 8.7 km/s |
Proper motion (μ) | RA: 15.23 mas/yr Dec.: -3.56 mas/yr |
Parallax (π) | 4.97 ± 0.82 mas |
Distance | approx. 700 ly (approx. 200 pc) |
Absolute magnitude (MV) | 4.223 |
Details | |
Mass | 18 M☉ |
Radius | 7 R☉ |
Luminosity | 20 L☉ |
Temperature | 10,000–30,000 K |
Other designations | |
Database references | |
SIMBAD | data |
Database references | |
SIMBAD | data |
Pi Andromedae (π And, π Andromedae) is a spectroscopic binary in the constellation Andromeda. It is approximately 660 light years from Earth.
The pair is classified as a blue-white B-type main sequence dwarf with an apparent magnitude of +4.34. It is a spectroscopic binary with an orbital period of 143.6065 days. There is a 9th magnitude companion 35.9 arcseconds away. At 55 arcseconds separation is an 11th magnitude Pi Andromedae C companion.
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