Pi Andromedae

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π Andromedae
Observation data
Epoch J2000.0
Constellation Andromeda
Right ascension 00h 36m 52.9s
Declination +33° 43' 10"
Apparent magnitude (V) +4.34
Distance 660 ± 110 ly
(202 ± 34 pc)
Spectral type B5V+A6V
Other designations
29 Andromedae, HR 154,
HD 3369, BD+32°101,
FK5 18, HIP 2912,
SAO 54033, GC 729,
ADS 513, CCDM 00369+3343

Pi Andromedae (π And / π Andromedae) is a star system in the constellation Andromeda. It is approximately 660 light years from Earth.

The primary component, Pi Andromedae A, is 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. The binary has a 9th magnitude companion, Pi Andromedae B, 35.9 arcseconds away. It is a white A-type main sequence dwarf and has an orbital period of about 103 thousand years. At 55 arcseconds separation is the 11th magnitude Pi Andromedae C, which appears to be an optical companion.

[edit] Location

This star's location in the constellation Andromeda can be seen in the following diagram:

Diagram of Andromeda constellation
Enlarge
Diagram of Andromeda constellation