55 Cancri e
| Planet luar suria | Senarai | |
|---|---|---|
 | ||
| Bintang induk | ||
| Bintang | 55 Cancri A | |
| Buruj | Cancer | |
| Jarak hamal | (α) | 08j 52m 35.8s |
| Keserongan | (δ) | +28° 19′ 51″ |
| Magnitud ketara | (mV) | 5.95 |
| Jarak | 40.3 ± 0.4 ly (12.3 ± 0.1 pc) | |
| Jenis spektrum | G8V | |
| Jisim | (m) | 0.95 ± 0.10 M? |
| Jejari | (r) | 1.152 ± 0.035 R? |
| Suhu | (T) | 5373 ± 9.7 K |
| Kelogaman | [Fe/H] | 0.29 |
| Umur | 7.4–8.7 Gtahun | |
| Unsur orbit | ||
| Paksi semimajor | (a) | 0.01560 ± 0.00011[1] AU (2.333 Gm) |
| 1.27 mas | ||
| Periastron | (q) | 0.0129 AU (1.94 Gm) |
| Apastron | (Q) | 0.0183 AU (2.73 Gm) |
| Kesipian | (e) | 0.17 ± 0.04[1] |
| Tempoh orbit | (P) | 0.736537 ± 0.000013[1] h |
| (17.6769 j) | ||
| Kecondongan | (i) | 83.4 ± 1.7° |
| Hujah periastron |
(?) | 181 ± 2[1]° |
| Masa periastron | (T0) | 2,449,999.83643 ± 0.0001[2] JD |
| Semiamplitud | (K) | 6.2 ± 0.2[1] m/s |
| Ciri fizikal | ||
| Jisim | (m) | 8.63 ± 0.35[3] M? |
| Jejari | (r) | 2.00 ± 0.14 [3] R? |
| Ketumpatan | (ρ) | 5.9+1.5 −1.1 [3] g cm-3 |
| Maklumat penemuan | ||
| Tarikh penemuan | 30 Ogos 2004 | |
| Penemu | McArthur et al. | |
| Kaedah pengesanan | Halaju jejarian | |
| Tempat penemuan | Texas, AS | |
| Status penemuan | Diterbitkan | |
| Designasi lain | ||
55 Cancri Ae, Templat:Bayer-blank, HD 75732 e | ||
| Rujukan pangkalan data | ||
| Extrasolar Planets Encyclopaedia | data | |
| SIMBAD | data | |
55 Cancri e (disingkatkan 55 Cnc e) adalah planet luar suria mengorbit bintang serupa dengan Matahari 55 Cancri A.
Rujukan
[sunting | sunting sumber]- 1 2 3 4 5 Rebekah; Fabrycky; dll. (2010-05-21). "Radial velocity planets de-aliased. A new, short period for Super-Earth 55 Cnc e". The Astrophysical Journal. 722: 937–953. arXiv:1005.4050. Bibcode:2010ApJ...722..937D. doi:10.1088/0004-637X/722/1/937. Explicit use of et al. in:
|author=(bantuan) - ↑ Fischer, Debra A.; Marcy, Geoffrey W.; Butler, R. Paul; Vogt, Steven S.; Laughlin, Greg; Henry, Gregory W.; Abouav, David; Peek, Kathryn M. G.; Wright, Jason T.; Johnson, John A.; McCarthy, Chris; Isaacson, Howard (1 March 2008) [23 December 2007 (v1)]. "Five Planets Orbiting 55 Cancri". The Astrophysical Journal. 675 (1): 790–801. arXiv:0712.3917. Bibcode:2008ApJ...675..790F. doi:10.1086/525512.
- 1 2 3 Winn, J.N; dll. (2008). "A Super Earth Transiting a Naked-Eye Star". Astronomy & Astrophysics. arXiv:1104.5230. Bibcode:2011ApJ...737L..18W. doi:10.1088/2041-8205/737/1/L18. Explicit use of et al. in:
|author=(bantuan)
Pautan luar
[sunting | sunting sumber]- Jean Schneider (2011). "Notes for Planet 55 Cnc e". Extrasolar Planets Encyclopaedia. Dicapai pada 8 October 2011.
- Extrasolar Visions: 55 Cancri e Diarkibkan 2007-11-26 di Wayback Machine
- Spitzer Detects a Steaming Super-Earth Eclipsing Its Star (JPL 09.26.11)