HAT-P-11b
HAT-P-11b (atau Kepler-3b) adalah planet luar suria mengorbit bintang HAT-P-11.
| Planet luar suria | Senarai | |
|---|---|---|
 | ||
| Bintang induk | ||
| Bintang | HAT-P-11 | |
| Buruj | Cygnus | |
| Jarak hamal | (α) | 19j 50m 50.2469s |
| Keserongan | (δ) | +48° 04′ 51.085″ |
| Magnitud ketara | (mV) | 9.59 |
| Jarak | 123 ± 4.2 ly (38 ± 1.3 pc) | |
| Jenis spektrum | K4 | |
| Unsur orbit | ||
| Paksi semimajor | (a) | 0.053+0.0002 −0.0008 AU |
| Periastron | (q) | 0.043 AU |
| Apastron | (Q) | 0.063 AU |
| Kesipian | (e) | 0.198 ± 0.046 |
| Tempoh orbit | (P) | 4.8878045±0.0000043[1] h (0.013381878 ± 0.000000019 y) |
| Kelajuan orbit | (?) | 118 km/s |
| Kecondongan | (i) | 88.5 ± 0.6° |
| Hujah periastron |
(?) | 355.2 ± 17.3° |
| Masa transit | (Tt) | 2454605.89132 ± 0.00032 JD |
| Ciri fizikal | ||
| Jisim | (m) | 0.081 ± 0.009 MJ (26 ± 3 M?) |
| Jejari | (r) | 0.422 ± 0.014 RJ (4.58 ± 0.15 R?) |
| Ketumpatan | (ρ) | 1440 kg m-3 |
| Graviti permukaan | (g) | 1.20 g |
| Maklumat penemuan | ||
| Tarikh penemuan | 2 Januari 2009 | |
| Penemu | Bakos et al. | |
| Kaedah pengesanan | Transit (HATNet) | |
| Tempat penemuan | Cambridge, Massachusetts | |
| Status penemuan | Diterbitkan | |
| Rujukan pangkalan data | ||
| Extrasolar Planets Encyclopaedia | data | |
| SIMBAD | data | |
Lihat juga
suntingRujukan
sunting- ^ Dittmann, Jason A.; Close, Laird M.; Green, Elizabeth M.; Scuderi, Louis J.; Males, Jared R. (2009). "Follow-up Observations of the Neptune Mass Transiting Extrasolar Planet HAT-P-11b". The Astrophysical Journal. 699: L48–L51. arXiv:0905.1114v2. Bibcode:2009ApJ...699L..48D. doi:10.1088/0004-637X/699/1/L48.
Pautan luar
sunting
Kategori berkenaan HAT-P-11b di Wikimedia Commons
- "HAT-P-11 b". Exoplanets.
