40 Persei
Sign in to saveAlso known as o Persei, 40 Per
binary star system in the constellation Perseus
Astronomical data · SIMBAD
- Object type
- *
- Spectral type
- B0.5V
- Distance
- 1,206 light-years
- Redshift
- z = 0.00007338679375434864
- Coordinates
- RA 55.5944° · Dec 33.9650°
View on SIMBAD →
via SIMBAD · CDS Strasbourg
Wikidata facts
- Constellation
- Perseus
- Distance from Earth
- 332
- Radius
- 9.82
- Mass
- 12.5
Show 17 more facts
- catalog code
- ALS 14762
- spectral class
- B0.5VSB,VB
- stellar rotational velocity
- 73
- apparent magnitude
- 5.061
- parallax
- 3.09
- right ascension
- 55.59435646917
- declination
- 33.96502481194
- effective temperature
- 28850
- radial velocity
- 9.3
- epoch
- J2000.0
- metallicity
- -0.43
- surface gravity
- 23000
- luminosity
- 23600
- absolute magnitude
- -2.58
- right ascension component of proper motion
- 4.39
- declination component of proper motion
- -5.21
- age estimated by a dating method
- 7.2
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