Gliese 357

Gliese 357
	; Ilustrasi seniman mengenai sistem Gliese 357 (GJ357).
Data pengamatan; Epos J2000 Ekuinoks J2000
Rasi bintang	Hydra
Asensio rekta	09j 36m 01.63722d
Deklinasi	-21° 39′ 38.8776″
Magnitudo tampak (V)	10.906
Ciri-ciri
Tahap evolusi	deret utama
Kelas spektrum	M2.5V
Astrometri
Kecepatan radial (Rv)	−35,03±0,17 km/s
Gerak diri (μ)	RA: 138,722±0,023 mdb/thn ; Dek.: −990,342±0,020 mdb/thn
Paralaks (π)	105,9789±0,0227 mdb
Jarak	30,776 ± 0,007 tc ; (9,436 ± 0,002 pc)
Magnitudo mutlak (MV)	+11.13
Detail
Massa	0.362 M☉
Radius	0.333 R☉
Luminositas	0.014 L☉
Gravitasi permukaan (log g)	4.96
Suhu	3,488 K
Metalisitas [Fe/H]	−0,14
Rotasi	74,3±1,7 h
Kecepatan rotasi (v sin i)	2.5 km/s
Penamaan lain
	HIP 47103, 2MASS 09360161-2139371, TOI 562
Referensi basis data
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.

[GaiaDR3-1] Kesalahan pengutipan: Tag <ref> tidak sah; tidak ditemukan teks untuk ref bernama GaiaDR3

[ubv-2] 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 .

[nstars-3] 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.

[houdebine-4] 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 .

[carmenes-5] 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-6] 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.

[7] 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

[8] 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

[:0-9] 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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