HD 85512
|
Stern HD 85512 |
|||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| AladinLite | |||||||||||||||
|
Observation dates equinox : J2000.0 , epoch : J2000.0 |
|||||||||||||||
| Constellation | Sails of the ship | ||||||||||||||
| Right ascension | 9 h 51 m 7.05 s | ||||||||||||||
| declination | -43 ° 30 ′ 10 ″ | ||||||||||||||
| Apparent brightness | (7.65) mag | ||||||||||||||
| Typing | |||||||||||||||
| Known exoplanets | 1 | ||||||||||||||
| B − V color index | (1.18) | ||||||||||||||
| U − B color index | (1.13) | ||||||||||||||
| R − I index | (0.62) | ||||||||||||||
| Spectral class | K6 Vk | ||||||||||||||
| Astrometry | |||||||||||||||
| Radial velocity | (−9.51 ± 0.01) km / s | ||||||||||||||
| parallax | (88.62 ± 0.04) mas | ||||||||||||||
| distance | (36.79 ± 0.02) Lj (11.28 ± 0.01) pc |
||||||||||||||
| Visual absolute brightness M vis | 7.43 mag | ||||||||||||||
| Proper movement | |||||||||||||||
| Rec. Share: | (461.45 ± 0.10) mas / a | ||||||||||||||
| Dec. portion: | (−472.01 ± 0.12) mas / a | ||||||||||||||
| Physical Properties | |||||||||||||||
| Dimensions | (0.69) M ☉ | ||||||||||||||
| radius | (0.533) R ☉ | ||||||||||||||
| Luminosity |
(0.126) L ☉ |
||||||||||||||
| Effective temperature | (4715 ± 102) K. | ||||||||||||||
| Metallicity [Fe / H] | (−0.33 ± 0.03) | ||||||||||||||
| Rotation time | 47.13 | ||||||||||||||
| Age | (5.61 ± 0.61) a | ||||||||||||||
|
Other names and catalog entries |
|||||||||||||||
|
|||||||||||||||
HD 85512 (also Gliese 370 ) is a single, orange main sequence star (K5 V), which is about 37 light years away from Earth and is located in the constellation Vela .
Planetary system
.jpg)
On August 19, 2011, the High Accuracy Radial Velocity Planet Searcher (HARPS) found that HD 85512 has a planet with a weight of 3.6 Earth masses, which is "just within" the habitat zone . The planet, HD 85512 b , could potentially be cool enough for liquid water if the planet has more than 50% cloudiness.
Web links
Commons : HD 85512 - Collection of images, videos and audio files
Individual evidence
- ↑ a b c d e f g h i HD 85512. In: SIMBAD . Center de Données astronomiques de Strasbourg , accessed on September 21, 2019 .
- ↑ a b c d HD 85512 b. In: Extrasolar Planets Encyclopaedia . Retrieved September 21, 2019 .
- ↑ F. Pepe, et al. : The HARPS search for Earth-like planets in the habitable zone: I - Very low-mass planets around HD20794, HD85512 and HD192310 . In: Cornell University . 2011. arxiv : 1108.3447 . bibcode : 2011yCat..35349058P . doi : 10.1051 / 0004-6361 / 201117055 .
- ↑ Spiegel Online Newly discovered planet hovers in the green zone from August 27, 2011
- ↑ arxiv.org: A Habitable Planet around HD 85512? by L. Kaltenegger, S. Udry and F. Pepe on August 17, 2011