HD 189733 b: Perbedaan antara revisi
Konten dihapus Konten ditambahkan
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Revisi per 15 September 2011 15.14
| Planet luar surya | Daftar planet luar surya | |
|---|---|---|
 | ||
| Bintang utama | ||
| Bintang | HD 189733 A | |
| Rasi bintang | Vulpecula | |
| Asensio rekta | (α) | 20j 00m 43.7133d |
| Deklinasi | (δ) | +22° 42′ 39.070″ |
| Magnitudo tampak | (mV) | 7.66 |
| Jarak | 62.9 tc (19.3 pc) | |
| Tipe | K1-K2V | |
| Massa | (m) | 0.8 ± 0.4 M☉ |
| Elemen orbit | ||
| Sumbu semi-mayor | (a) | 0.03099 ± 0.0006 SA |
| Apsis | (q) | 0.03096 SA |
| Apastron | (Q) | 0.03102 SA |
| Eksentrisitas | (e) | 0.0010 ± 0.0002 |
| Periode orbit | (P) | 2.2185733 ± 0.00002 h |
| Kecepatan orbit | (υ) | 152.5 km/s |
| Inklinasi | (i) | 85.76 ± 0.29° |
| Waktu transit | (Tt) | 2,453,988.80336 ± 0.00024 HJ |
| Semi-amplitudo | (K) | 205 ± 6 m/s |
| Ciri-ciri fisik | ||
| Massa | (m) | 1.13 ± 0.03 MJ |
| Jari-jari | (r) | 1.138 ± 0.027 RJ |
| Gravitasi permukaan | (g) | 21.2 m/s² |
| Suhu | (T) | 1117 ± 42 K |
| Keterangan penemuan | ||
| Tanggal penemuan | 5 October 2005 | |
| Penemu | Bouchy et al. | |
| Metode penemuan | Doppler spectroscopy Transit | |
| Tempat penemuan | Haute-Provence Observatory | |
| Status penemuan | Confirmed | |
| Referensi basis data | ||
| Extrasolar Planets Encyclopaedia | data | |
| SIMBAD | data | |
HD 189733 b ialah planet luar surya terletak 63 tahun cahaya dalam Vulpecula.