RIK-210
Artikel ini membutuhkan rujukan tambahan agar kualitasnya dapat dipastikan. (Februari 2021) |
| Data pengamatan Epos J2000 Ekuinoks | |
|---|---|
| Rasi bintang | Ophiuchus[1] |
| Asensio rekta | 16j 23m 24.544d[2] |
| Deklinasi | -17° 17′ 27.14″[2] |
| Ciri-ciri | |
| Tahap evolusi | bintang pra-deret utama |
| Kelas spektrum | M2.5 |
| Magnitudo semu (Kp) | 13.7 |
| Magnitudo semu (B) | 16.213 ± 0.066 |
| Magnitudo semu (V) | 14.630 ± 0.137 |
| Magnitudo semu (J) | 10.61 ± 0.02 |
| Magnitudo semu (H) | 9.85 ± 0.02 |
| Magnitudo semu (K) | 9.65 ± 0.02 |
| Indeks warna B−V | 1.583 ± 0.203 |
| Indeks warna V−R | 0.537 ± 0.255 |
| Indeks warna R−I | 1.231 ± 0.217 |
| Indeks warna J−H | 0.76 ± 0.04 |
| Indeks warna J−K | 0.96 ± 0.04 |
| Jenis variabel | EW |
| Astrometri | |
| Jarak | 145 ± 20 pc |
| Detail[3] | |
| Massa | 0.53 ± 0.13 M☉ |
| Radius | 1.24 ± 0.125 R☉ |
| Suhu | 3500 K |
| Rotasi | 5,5 d[4] |
| Kecepatan rotasi (v sin i) | 11 ± 1 km/s−1 km/s |
| Usia | 7,5 ± 2,5 megatahun |
| Penamaan lain | |
2MASS J16232454-1717270, EPIC 205483258 | |
| Referensi basis data | |
| SIMBAD | data |
| Exoplanet Archive | 205483258 data |
| Sumber data: | |
| arXiv:1612.03907 [astro-ph.SR], SIMBAD, NStED | |
RIK-210 adalah bintang yang terletak di rasi bintang Ophiuchus. Bintang ini dikenal karena peristiwa peredupan misteriusnya.[5][3] Peredupan ini teramati dengan periode stabil 5,667 hari, namun bentuk segitiganya tidak konsisten dengan gerhana planet. Sebaliknya, awan difus pada orbit sinkron mungkin menjadi penyebabnya.[4]
Referensi
- ^ Templat:Cite constellation
- ^ a b Brown, A. G. A.; et al. (kolaborasi Gaia) (Agustus 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051. Catatan Gaia DR2 untuk sumber tersebut di VizieR.
- ^ a b David, Trevor J.; Petigura, Erik A.; Hillenbrand, Lynne A.; Cody, Ann Marie; Cameron, Andrew Collier; Stauffer, John R.; Fulton, B. J.; Isaacson, Howard T.; Howard, Andrew W.; Howell, Steve B.; Everett, Mark E.; Wang, Ji; Benneke, Björn; Hellier, Coel; West, Richard G.; Pollacco, Don; Anderson, David R. (27 Januari 2017). "A Transient Transit Signature Associated with the Young Star RIK-210". The Astrophysical Journal. 835 (2): 168. arXiv:1612.03907. Bibcode:2017ApJ...835..168D. doi:10.3847/1538-4357/835/2/168. S2CID 2323788.
- ^ a b Stauffer, John; Cameron, Andrew Collier; Jardine, Moira; David, Trevor J.; Rebull, Luisa; Cody, Ann Marie; Hillenbrand, Lynne A.; Barrado, David; Wolk, Scott; Davenport, James; Pinsonneault, Marc (2017), "Orbiting Clouds of Material at the Keplerian Co-rotation Radius of Rapidly Rotating Low-mass WTTS in Upper Sco", The Astronomical Journal, 153 (4): 152, arXiv:1702.01797, Bibcode:2017AJ....153..152S, doi:10.3847/1538-3881/aa5eb9, S2CID 35276346
- ^ Nowakowski, Tomasz (16 Desember 2016). "Astronomers observe mysterious dimming of a young nearby star". Phys.org. Diakses tanggal 5 Agustus 2017.
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