HD 89307
|
Stern HD 89307 |
|||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| AladinLite | |||||||||||
|
Observation dates equinox : J2000.0 , epoch : J2000.0 |
|||||||||||
| Constellation | lion | ||||||||||
| Right ascension | 10 h 18 m 21.29 s | ||||||||||
| declination | + 12 ° 37 ′ 16 ″ | ||||||||||
| Apparent brightness | 7.02 mag | ||||||||||
| Typing | |||||||||||
| Known exoplanets | 1 | ||||||||||
| Spectral class | G0 V | ||||||||||
| Astrometry | |||||||||||
| Radial velocity | (22.9 ± 0.1) km / s | ||||||||||
| parallax | (30.90 ± 0.68) mas | ||||||||||
| distance | (105.6 ± 2.3) ly (32.36 ± 0.71) pc |
||||||||||
| Visual absolute brightness M vis | +4.47 mag | ||||||||||
| Proper movement | |||||||||||
| Rec. Share: | (−272.29 ± 0.63) mas / a | ||||||||||
| Dec. portion: | (−39.91 ± 0.48) mas / a | ||||||||||
| Physical Properties | |||||||||||
| Dimensions | 1 M ☉ | ||||||||||
| radius | 1.07 R ☉ | ||||||||||
| Effective temperature | 5834 K | ||||||||||
| Metallicity [Fe / H] | −0.23 | ||||||||||
| Age | approx. 9 billion a | ||||||||||
|
Other names and catalog entries |
|||||||||||
|
|||||||||||
| annotation | |||||||||||
|
|||||||||||
HD 89307 is a yellow dwarf 107.65 light years from Earth with a right ascension of 10h 18m 21s and a declination of + 12 ° 37 '15 ". It has an apparent magnitude of about 7 mag. In 2004, Geoffrey discovered Marcy an extrasolar planet orbiting this star, named HD 89307 b .