Zeta2 Muscae
Star in the constellation Musca / From Wikipedia, the free encyclopedia
For other star systems with this Bayer designation see ζ Muscae
Zeta2 Muscae, Latinized from ζ2 Muscae, is a star[10] in the southern constellation of Musca. Its apparent magnitude is 5.16. This is a white main sequence star of spectral type A5V around 330 light-years distant from Earth.[9] Like several other stars in the constellation, it is a member of the Lower Centaurus–Crux subgroup of the Scorpius–Centaurus association, a group of predominantly hot blue-white stars that share a common origin and proper motion across the galaxy.[11] It is part of a triple star system with faint companions at 0.5 and 32.4 arc seconds distance.[12] The former is an infrared source,[13] the latter has a visual magnitude of 10.7.[4]
Quick Facts Observation data Epoch J2000.0 Equinox J2000.0, Constellation ...
Observation data Epoch J2000.0 Equinox J2000.0 | |
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Constellation | Musca |
Right ascension | 12h 22m 07.34002s[1] |
Declination | −67° 31′ 19.5871″[1] |
Apparent magnitude (V) | 5.14[2] + 8.71[3] + 10.7[4] |
Characteristics | |
Spectral type | A5 V[5] + G8-K0V[3] |
U−B color index | +0.13[2] |
B−V color index | +0.19[2] |
Astrometry | |
Radial velocity (Rv) | −17.0[6] km/s |
Proper motion (μ) | RA: −30.50[1] mas/yr Dec.: -6.10[1] mas/yr |
Parallax (π) | 9.89 ± 0.34 mas[1] |
Distance | 330 ± 10 ly (101 ± 3 pc) |
Absolute magnitude (MV) | +0.13[7] |
Details | |
ζ2 Muscae A | |
Luminosity | 66.7[8] L☉ |
Temperature | 7,400[8] K |
Other designations | |
Database references | |
SIMBAD | data |
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