Gliese 436 b
Gliese 436 b (disebut /ˈɡliːzə/), or GJ 436 b,[5] adalah planet luar suria yang mengorbit bintang kerdil merah Gliese 436.[6]
| Planet luar suria | Senarai | |
|---|---|---|
 | ||
| Bintang induk | ||
| Bintang | Gliese 436 | |
| Buruj | Leo | |
| Jarak hamal | (α) | 11j 42m 11.0941s[1] |
| Keserongan | (δ) | +26° 42′ 23.652″[1] |
| Magnitud ketara | (mV) | 10.68 |
| Jarak | 33.4 ± 0.8 ly (10.2 ± 0.2 pc) | |
| Jenis spektrum | M2.5 V[1] | |
| Jisim | (m) | 0.41 ± 0.05 M? |
| Jejari | (r) | 0.42 R? |
| Suhu | (T) | 3318 K |
| Kelogaman | [Fe/H] | -0.32 |
| Umur | 6.5–9.9 Gtahun | |
| Unsur orbit | ||
| Paksi semimajor | (a) | 0.0291±0.0004[2] AU (4.35 Gm) |
| 2.85 mas | ||
| Periastron | (q) | 0.0247 AU (3.70 Gm) |
| Apastron | (Q) | 0.0335 AU (5.01 Gm) |
| Kesipian | (e) | 0.150±0.012[2] |
| Tempoh orbit | (P) | 2.643904±0.000005[3] h (0.00723849 y) |
| (63.4537 j) | ||
| Kecondongan | (i) | 85.8+0.21 −0.25[3]° |
| Hujah periastron |
(?) | 351±1.2° |
| Masa periastron | (T0) | 2,451,551.716 ±0.01 JD |
| Semiamplitud | (K) | 18.68±0.8 m/s |
| Ciri fizikal | ||
| Jisim | (m) | 22.2±1.0[2] M? |
| Jejari | (r) | 4.327±0.183[2][4] R? |
| Ketumpatan | (ρ) | 1.51 g cm-3 |
| Graviti permukaan | (g) | 1.18 g |
| Suhu | (T) | 712±36[2] K |
| Maklumat penemuan | ||
| Tarikh penemuan | August 31, 2004 | |
| Penemu | Butler, Vogt, Marcy et al. | |
| Kaedah pengesanan | Radial velocity, Transit | |
| Tempat penemuan | California, USA | |
| Status penemuan | Published | |
| Rujukan pangkalan data | ||
| Extrasolar Planets Encyclopaedia | data | |
| SIMBAD | data | |
Lihat juga
suntingRujukan
sunting- ^ a b c "LHS 310". Simbad. Centre de Données astronomiques de Strasbourg. Dicapai pada 2007-11-28.
- ^ a b c d e Ralat petik: Tag
<ref>tidak sah; tiada teks disediakan bagi rujukan yang bernamademing - ^ a b Ralat petik: Tag
<ref>tidak sah; tiada teks disediakan bagi rujukan yang bernamabean - ^ Confirmed, Pont, F.; Gilliland, R. L.; Knutson, H.; Holman, M.; Charbonneau, D. (2008). "Transit infrared spectroscopy of the hot neptune around GJ 436 with the Hubble Space Telescope". Monthly Notices of the Royal Astronomical Society: Letters. 393: L6–L10. arXiv:0810.5731. doi:10.1111/j.1745-3933.2008.00582.x.
- ^ Maness; Marcy, G. W.; Ford, E. B.; Hauschildt, P. H.; Shreve, A. T.; Basri, G. B.; Butler, R. P.; Vogt, S. S.; dll. (2006). "The M Dwarf GJ 436 and its Neptune-Mass Planet". Submitted to Publications of the Astronomical Society of the Pacific. 119 (851): 90–101. arXiv:astro-ph/0608260. Bibcode:2007PASP..119...90M. doi:10.1086/510689. Explicit use of et al. in:
|author=(bantuan) - ^ Butler; Vogt, Steven S.; Marcy, Geoffrey W.; Fischer, Debra A.; Wright, Jason T.; Henry, Gregory W.; Laughlin, Greg; Lissauer, Jack J.; dll. (2004). "A Neptune-Mass Planet Orbiting the Nearby M Dwarf GJ 436". The Astrophysical Journal. 617: 580–588. arXiv:astro-ph/0408587. Bibcode:2004ApJ...617..580B. doi:10.1086/425173. Explicit use of et al. in:
|author=(bantuan)
Pautan luar
sunting
Kategori berkenaan Gliese 436 b di Wikimedia Commons
Koordinat: 
11h 42m 11.0941s, +26° 42′ 23.652″
