Proxima Centauri

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Proxima Centauri

Citra Proxima Centauri
Data pengamatan
Epos J2000.0      Ekuinoks J2000.0 (ICRS)
Rasi bintang Centaurus
Asensio rekta  14j 29m 42.9487d[1]
Deklinasi  −62° 40′ 46.141″[1]
Magnitudo tampak (V) 11,05[1]
Ciri-ciri
Kelas spektrum M5.5 Ve[1]
Indeks warna U−B 1,43[1]
Indeks warna B−V 1,90[1]
Jenis variabel Bintang suar
Astrometri
Kecepatan radial (Rv)−21,7 ± 1,8[2] km/s
Gerak diri (μ) RA: −3775,40[1] mdb/thn
Dek.: 769,33[1] mdb/thn
Paralaks (π)768.7±0.3[3] mdb
JarakMal:ErrorBar2 tc
(Mal:ErrorBar2 pc)
Magnitudo mutlak (MV)15,49[4]
Detail
Massa0,123 ± 0,006[5] M☉
Radius0,145 ± 0,011[5] R☉
Luminositas (bolometrik)0,0017[6] L☉
Gravitasi permukaan (log g)5,20 ± 0,23[5]
Suhu3,042 ± 117[5] K
Rotasi83,5 hari[7]
Usia4,85Mal:Esp[8] tahun
Penamaan lain
Alpha Centauri C, CCDM J14396-6050C, GCTP 3278.00, GJ 551, HIP 70890, LFT 1110, LHS 49, LPM 526, LTT 5721, NLTT 37460, V645 Centauri[1]
Referensi basis data
SIMBADdata

Proxima Centauri[9] inggih punika bintang alit mamassa éndép sané magenah 4.2465 warsa cahaya (1.3020 pc) dohné saking Surya ring rasi bintang kelod saking Centaurus. Aran Latiné maartos '[bintang] pinih nampek saking Centaurus'. Ipun kacunduk duk warsa 1915 olih Robert Innes saha pinaka bintang pinih nampek sané kauningin sareng Surya. Antuk magnitudo semu mendem agengné 11,13, ipun bes redup antuk kacingak nganggén panyingakan malalung. Proxima Centauri inggih punika anggota Alpha Centauri sistem bintang, sané kaidentifikasi dados komponén Alpha Centauri C, lan magenah 2,18° kelod kauh pasangan Alpha Centauri AB. Sané mangkin magenah 12,950 AU (0.2 ly) saking AB, sané mangorbitné sareng period sawatara 550.000 warsa.

Pustaka[uah | uah wit]

  1. ↑ 1,0 1,1 1,2 1,3 1,4 1,5 1,6 1,7 1,8 "SIMBAD query result: V* V645 Cen -- Flare Star". Centre de Données astronomiques de Strasbourg. Kaaksés 2008-08-11.—some of the data is located under "Measurements".
  2. ↑ García-Sánchez, J. (2001). "Stellar encounters with the solar system". Astronomy and Astrophysics. 379: 634–659. doi:10.1051/0004-6361:20011330. Kaaksés 2008-06-12. Unknown parameter |coauthors= ignored (|author= suggested) (help)
  3. ↑ Pikobet nganggit: Tag <ref> tidak sah; tidak ditemukan teks untuk ref bernama apj118
  4. ↑ Kamper, K. W. (1978). "Alpha and Proxima Centauri". Astronomical Journal. 83: 1653–1659. doi:10.1086/112378. Kaaksés 2008-08-03. Unknown parameter |coauthors= ignored (|author= suggested) (help)
  5. ↑ 5,0 5,1 5,2 5,3 Ségransan, D. (2003). "First radius measurements of very low mass stars with the VLTI". Astronomy and Astrophysics. 397: L5–L8. doi:10.1051/0004-6361:20021714. Kaaksés 2008-08-07. Unknown parameter |coauthors= ignored (|author= suggested) (help)
  6. ↑ See Table 1, Doyle, J. G. (1990). "Optical and infrared photometry of dwarf M and K stars". Astronomy and Astrophysics. 235: 335–339. Bibcode:1990A&A...235..335D. Unknown parameter |coauthors= ignored (|author= suggested) (help) dan hal. 57, Peebles, P. J. E. (1993). Principles of Physical Cosmology. Princeton, New Jersey: Princeton University Press. ISBN 0691019339.
  7. ↑ Benedict, G. Fritz; et al. (1998). "Photometry of Proxima Centauri and Barnard's Star Using Hubble Space Telescope Fine Guidance Sensor 3: A Search for Periodic Variations". The Astronomical Journal. 116 (1): 429–439. doi:10.1086/300420. Kaaksés 2007-07-09. Explicit use of et al. in: |author= (help)
  8. ↑ Kervella, Pierre; Thevenin, Frederic (2003-03-15). "A Family Portrait of the Alpha Centauri System: VLT Interferometer Studies the Nearest Stars". ESO. Kaarsipin saking versi asli tanggal 2008-06-16. Kaaksés 2007-07-09. Unknown parameter |dead-url= ignored (help)CS1 maint: multiple names: authors list (link)
  9. ↑ "Latin Resources". Joint Association of Classical Teachers. Kaarsipin saking versi asli tanggal 2007-07-08. Kaaksés 2007-07-15. Unknown parameter |dead-url= ignored (help)

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