55 Cancri e
Daripada Wikipedia, ensiklopedia bebas.
| Planet luar suria | Senarai planet luar sistem suria | |
|---|---|---|
 |
||
| Bintang induk | ||
| Bintang | 55 Cancri A | |
| Buruj | Cancer | |
| Garis kanan | (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 spektra | 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 separa | (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) |
| Keeksentrikan | (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 |
| Semi-amplitud | (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 | |
| Perekaan 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.
[sunting] Rujukan
- ↑ 1.0 1.1 1.2 1.3 1.4 Rebekah et al.; Fabrycky (2010-05-21). "Radial velocity planets de-aliased. A new, short period for Super-Earth 55 Cnc e". The Astrophysical Journal 722: 937–953. doi:10.1088/0004-637X/722/1/937.
- ↑ Ralat petik: Tag
<ref>tidak sah; teks bagi rujukanfischer08tidak disediakan - ↑ 3.0 3.1 3.2 Winn, J.N et al. (2008). "A Super Earth Transiting a Naked-Eye Star". Astronomy & Astrophysics. doi:10.1088/2041-8205/737/1/L18.
[sunting] Pautan luar
- Jean Schneider (2011). "Notes for Planet 55 Cnc e". Extrasolar Planets Encyclopaedia. http://exoplanet.eu/planet.php?p1=55+Cnc&p2=e. Capaian 8 October 2011.
- Extrasolar Visions: 55 Cancri e
- Spitzer Detects a Steaming Super-Earth Eclipsing Its Star (JPL 09.26.11)
