Gliese 357
Gliese 357
Ilustrasi seniman mengenai sistem Gliese 357 (GJ357).
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Data pengamatan Epos J2000 Ekuinoks J2000
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Rasi bintang
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Hydra
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Asensio rekta
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09j 36m 01.63722d[1]
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Deklinasi
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-21° 39′ 38.8776″[1]
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Magnitudo tampak (V)
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10.906[2]
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Ciri-ciri
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Tahap evolusi
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deret utama
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Kelas spektrum
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M2.5V[3]
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Astrometri |
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Kecepatan radial (Rv) | −35,03±0,17[1] km/s | Gerak diri (μ) | RA: 138,722±0,023[1] mdb/thn Dek.: −990,342±0,020[1] mdb/thn | Paralaks (π) | 105,9789±0,0227[1] mdb | Jarak | 30,776 ± 0,007 tc (9,436 ± 0,002 pc) | Magnitudo mutlak (MV) | +11.13[4] | |
Detail |
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Massa | 0.362[5] M☉ | Radius | 0.333[4] R☉ | Luminositas | 0.014[6] L☉ | Gravitasi permukaan (log g) | 4.96[5] | Suhu | 3,488[5] K | Metalisitas [Fe/H] | −0,14[5] | Rotasi | 74,3±1,7 h[7] | Kecepatan rotasi (v sin i) | 2.5[5] km/s | |
Penamaan lain |
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HIP 47103, 2MASS 09360161-2139371, TOI 562 |
Referensi basis data |
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SIMBAD | data |
GJ 357 (Gliese 357) adalah sebuah Bintang deret utama tipe-M dengan aktifitas bintik bintang yang tak biasa rendah.[8] Bintang ini terletak 31 tahun cahaya dari Tata Surya,[9] di rasi bintang Hydra.[9]
Referensi
- ^ a b c d e Kesalahan pengutipan: Tag
<ref> tidak sah;
tidak ditemukan teks untuk ref bernama GaiaDR3
- ^ Koen, C.; Kilkenny, D.; Van Wyk, F.; Marang, F. (2010). "UBV(RI)C JHK observations of Hipparcos-selected nearby stars". Monthly Notices of the Royal Astronomical Society. 403 (4): 1949. Bibcode:2010MNRAS.403.1949K. doi:10.1111/j.1365-2966.2009.16182.x .
- ^ Gray, R. O.; Corbally, C. J.; Garrison, R. F.; McFadden, M. T.; Bubar, E. J.; McGahee, C. E.; O'Donoghue, A. A.; Knox, E. R. (2006). "Contributions to the Nearby Stars (NStars) Project: Spectroscopy of Stars Earlier than M0 within 40 pc-The Southern Sample". The Astronomical Journal. 132 (1): 161–170. arXiv:astro-ph/0603770 . Bibcode:2006AJ....132..161G. doi:10.1086/504637.
- ^ a b Houdebine, E. R.; Mullan, D. J.; Paletou, F.; Gebran, M.; Bubar, E. J.; McGahee, C. E.; O'Donoghue, A. A.; Knox, E. R. (2016). "Rotation-Activity Correlations in K and M Dwarfs. I. Stellar Parameters and Compilations of v sin I and P/Sin I for a Large Sample of Late-K and M Dwarfs". The Astrophysical Journal. 822 (2): 97. arXiv:1604.07920 . Bibcode:2016ApJ...822...97H. doi:10.3847/0004-637X/822/2/97 .
- ^ a b c d e Passegger, V. M.; Reiners, Ansgar; Jeffers, S. V.; Wende-von Berg, S.; Schöfer, P.; Caballero, J. A.; Schweitzer, A.; Amado, P. J.; Béjar, V. J. S.; Cortés-Contreras, M.; Hatzes, A. P.; Kürster, M.; Montes, D.; Pedraz, S.; Quirrenbach, A.; Ribas, I.; Seifert, W. (2018). "The CARMENES search for exoplanets around M dwarfs. Photospheric parameters of target stars from high-resolution spectroscopy". Astronomy and Astrophysics. 615: A6. arXiv:1802.02946 . Bibcode:2018A&A...615A...6P. doi:10.1051/0004-6361/201732312.
- ^ Morales, J. C.; Ribas, I.; Jordi, C.; McFadden, M. T.; Bubar, E. J.; McGahee, C. E.; O'Donoghue, A. A.; Knox, E. R. (2008). "The effect of activity on stellar temperatures and radii". Astronomy and Astrophysics. 478 (2): 507. arXiv:0711.3523 . Bibcode:2008A&A...478..507M. doi:10.1051/0004-6361:20078324.
- ^ Suárez Mascareño, A.; Rebolo, R.; González Hernández, J. I.; Esposito, M. (2015), "Rotation periods of late-type dwarf stars from time series high-resolution spectroscopy of chromospheric indicators", Monthly Notices of the Royal Astronomical Society, 452 (3): 2745–2756, arXiv:1506.08039 , Bibcode:2015MNRAS.452.2745S, doi:10.1093/mnras/stv1441
- ^ Modirrousta-Galian, D.; Stelzer, B.; Magaudda, E.; Maldonado, J.; Güdel, M.; Sanz-Forcada, J.; Edwards, B.; Micela, G. (2020), "A Super-Earth Orbiting an Extremely Inactive Host Star", Astronomy & Astrophysics, A113: 641, arXiv:2007.10262 , doi:10.1051/0004-6361/202038280
- ^ a b Reddy, Francis; Center, NASA’s Goddard Space Flight (2019-07-31). "TESS Discovers Habitable Zone Planet in GJ 357 System". SciTechDaily (dalam bahasa Inggris). Diarsipkan dari versi asli tanggal 2019-08-01. Diakses tanggal 2019-08-01.
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