Musica (star)
Stern Musica |
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AladinLite | |||||||||||||||
Observation dates equinox : J2000.0 , epoch : J2000.0 |
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Constellation | dolphin | ||||||||||||||
Right ascension | 20 h 58 m 25.93 s | ||||||||||||||
declination | + 10 ° 50 ′ 21.4 ″ | ||||||||||||||
Apparent brightness | 5.52 mag | ||||||||||||||
Typing | |||||||||||||||
Known exoplanets | 1 | ||||||||||||||
B − V color index | +0.93 | ||||||||||||||
Spectral class | G6 III | ||||||||||||||
Astrometry | |||||||||||||||
parallax | (13.28 ± 0.31) mas | ||||||||||||||
distance | (246 ± 6) ly (75.3 ± 1.8) pc |
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Visual absolute brightness M vis | +1.2 mag | ||||||||||||||
Proper movement | |||||||||||||||
Rec. Share: | (−48.88 ± 1.07) mas / a | ||||||||||||||
Dec. portion: | (−34.42 ± 0.61) mas / a | ||||||||||||||
Physical Properties | |||||||||||||||
Dimensions | 2.3 M ☉ | ||||||||||||||
radius | 8.5 R ☉ | ||||||||||||||
Effective temperature | 5000 K | ||||||||||||||
Metallicity [Fe / H] | −0.05 | ||||||||||||||
Other names and catalog entries |
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Musica ( Flamsteed designation 18 Delphini) is a giant of the spectral class G6, about 250 light years from Earth . It has an apparent magnitude of 5.52 mag. In 2008, Bun'ei Satō et al. published the discovery of an extrasolar planet around this star. This is called Arion .
Web links
Individual evidence
- ^ Hipparcos catalog
- ↑ a b SIMBAD database
- ↑ Bright Star Catalog
- ^ A b Floor van Leeuwen: Hipparcos, the New Reduction of the Raw Data ; in: Astrophysics and Space Science Library, Vol. 350 (2007), bibcode : 2007ASSL..350 ..... V
- ↑ 2nd Cat. of Radial Velocities with Astrometric Data (Kharchenko +, 2007)