RIK-210


RIK-210
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
Jarak145 ± 20 pc
Detail[3]
Massa0.53 ± 0.13 M
Radius1.24 ± 0.125 R
Suhu3500 K
Rotasi5,5 d[4]
Kecepatan rotasi (v sin i)11 ± 1 km/s−1 km/s
Usia7,5 ± 2,5 megatahun
Penamaan lain
2MASS J16232454-1717270, EPIC 205483258
Referensi basis data
SIMBADdata
Exoplanet Archive205483258 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

  1. ^ Templat:Cite constellation
  2. ^ 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.
  3. ^ 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.
  4. ^ 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
  5. ^ Nowakowski, Tomasz (16 Desember 2016). "Astronomers observe mysterious dimming of a young nearby star". Phys.org. Diakses tanggal 5 Agustus 2017.

Templat:Ophiuchus

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