HD 17156 b
| Planet luar suria | Senarai | |
|---|---|---|
 | ||
| Bintang induk | ||
| Bintang | HD 17156 | |
| Buruj | Cassiopeia | |
| Jarak hamal | (α) | 02j 49m 44.49s |
| Keserongan | (δ) | +71° 45′ 11.64″ |
| Magnitud ketara | (mV) | 8.17 |
| Jarak | 255.19 ly (78.24 pc) | |
| Jenis spektrum | G0 | |
| Jisim | (m) | 1.24 ± 0.03 M? |
| Jejari | (r) | 1.446+0.099 −0.067 R? |
| Suhu | (T) | 6079 ± 80 K |
| Kelogaman | [Fe/H] | 0.24 ± 0.05 |
| Umur | 3.06+0.64 −0.76 Gtahun | |
| Unsur orbit | ||
| Paksi semimajor | (a) | 0.1589[1] AU |
| Kesipian | (e) | 0.6719[1] |
| Tempoh orbit | (P) | 21.21747[1] h |
| Kecondongan | (i) | 85.4 [1]° |
| Hujah periastron |
(?) | 121.23[1]° |
| Masa periastron | (T0) | 2454438.4835±0.0025[1] JD |
| Semiamplitud | (K) | 132.5 ± 9.5 m/s |
| Ciri fizikal | ||
| Jisim | (m) | 3.09[1] MJ |
| Jejari | (r) | 0.964[1] RJ |
| Ketumpatan | (ρ) | 3470[1] kg m-3 |
| Graviti permukaan | (g) | ~8.52 m/s² |
| Suhu | (T) | ? K |
| Maklumat penemuan | ||
| Tarikh penemuan | 14 April 2007 | |
| Penemu | Fischer et al. | |
| Kaedah pengesanan | Radial velocity and Transit | |
| Tempat penemuan | W. M. Keck Observatory Subaru Telescope | |
| Status penemuan | Published | |
| Rujukan pangkalan data | ||
| Extrasolar Planets Encyclopaedia | data | |
| SIMBAD | data | |
HD 17156 b adalah planet luar suria kira-kira 255 tahun cahaya jauh dalam buruj Cassiopeia.
Lihat juga
[sunting | sunting sumber]Rujukan
[sunting | sunting sumber]- ^ a b c d e f g h i Gillon, M.; Triaud, A. H. M. J.; Mayor, M.; Queloz, D.; Udry, S.; North, P. (2007). "Improved parameters for the transiting planet HD 17156b: A high-density giant planet with a very eccentric orbit". Astronomy and Astrophysics. 485 (3): 871–875. arXiv:0712.2073. Bibcode:2008A&A...485..871G. doi:10.1051/0004-6361:20079238.
Pautan luar
[sunting | sunting sumber]
Kategori berkenaan HD 17156 b di Wikimedia Commons
- Irwin; Charbonneau, David; Nutzman, Philip; Welsh; Rajan, Abhijith; Hidas, Marton; Brown; Lister; Davies, Donald; dll. (2008-01-09). "Parameters and Predictions for the Long-Period Transiting Planet HD 17156b". The Astrophysical Journal. 681: 636–643. arXiv:0801.1496. Bibcode:2008ApJ...681..636I. doi:10.1086/588461. Explicit use of et al. in:
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