Beta Ceti
Ang Beta Ceti (β Cet, β Ceti) ay ang pinakamaliwanag na bituin sa konstelasyon ng Cetus. Kahit na mayroon itong pagtatanda ni Bayer na "beta", ito ang talagang mas maliwanag kaysa sa Alpha Ceti. May tradisyunal na pangalan itongDeneb Kaitos at Diphda. Madaling makita ang naranghang higanteng ito dahil sa lokasyon nito sa madilim na seksiyon ng panlangit na timbulog. Base sa sukatang paralaks, makikita ito sa tinantiyang layo na 96.3 light-year (29.5 parsec) mula sa Mundo.[1]
 Lokasyon ng β Ceti (nakabilog) | |
| Impormasyon sa pagtingin Epoka J2000 Equinox J2000 | |
|---|---|
| Konstelasyon | Cetus |
| Kanang asensiyon | 00h 43m 35.37090s[1] |
| Deklinasyon | –17° 59′ 11.7827″[1] |
| Maliwanag na kalakhan (V) | 2.02[2] |
| Katangian | |
| Pag-uuring pambituin | K0 III[3] |
| U−B sa talatuntunan ng kulay | +0.88[2] |
| B−V sa talatuntunan ng kulay | +1.01[2] |
| Uri ng baryabulo | Rotasyonal |
| Astrometriya | |
| Radyal na hagibis (Rv) | +12.9[4] km/s |
| Tamang mosyon (μ) | KA: +232.55[1] mas/yr Dek.: +31.99[1] mas/yr |
| Paralaks (π) | 33.86 ± 0.16[1] mas |
| Layo | 96.3 ± 0.5 st (29.5 ± 0.1 pc) |
| Lubusang kalakhan (MV) | –0.13[5] |
| Detalye | |
| Bigat | 2.8[6] M☉ |
| Radyos | 16.78 ± 0.25[7] R☉ |
| Luminosidad | 139.1 ± 7.0[7] L☉ |
| Pang-ibabaw na grabidad (log g) | 2.7[8] |
| Temperatura | 4,797[8] K |
| Metalisidad [Fe/H] | –0.09[8] dex |
| Rotasyonal na hagibis (v sin i) | 18[9] km/s |
| Edad | > 1[10] Gyr |
| Iba pang pagtatanda | |
| Sangguniang pangimpormasyon | |
| SIMBAD | data |
| ARICNS | data |
Talababa
baguhin- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653–664. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357.
{{cite journal}}: Unknown parameter|month=ignored (tulong)CS1 maint: date auto-translated (link) - ↑ 2.0 2.1 2.2 Johnson, H. L.; atbp. (1966), "UBVRIJKL photometry of the bright stars", Communications of the Lunar and Planetary Laboratory, 4 (99), Bibcode:1966CoLPL...4...99J
{{citation}}: CS1 maint: date auto-translated (link) - ↑ Montes, D.; atbp. (2001), "Late-type members of young stellar kinematic groups - I. Single stars", Monthly Notices of the Royal Astronomical Society, 328 (1): 45–63, arXiv:astro-ph/0106537, Bibcode:2001MNRAS.328...45M, doi:10.1046/j.1365-8711.2001.04781.x
{{citation}}: Unknown parameter|month=ignored (tulong)CS1 maint: date auto-translated (link) - ↑ Wielen, R.; atbp. (1999), Sixth Catalogue of Fundamental Stars (FK6). Part I. Basic fundamental stars with direct solutions, Astronomisches Rechen-Institut Heidelberg, Bibcode:1999VeARI..35....1W
{{citation}}: CS1 maint: date auto-translated (link) - ↑ Elgarøy, Øystein; Engvold, Oddbjørn; Lund, Niels (1999), "The Wilson-Bappu effect of the MgII K line - dependence on stellar temperature, activity and metallicity", Astronomy and Astrophysics, 343: 222–228, Bibcode:1999A&A...343..222E
{{citation}}: Unknown parameter|month=ignored (tulong)CS1 maint: date auto-translated (link) - ↑ Sägesser, S. N.; Jordan, C. (2005). "Emission measures for the single giant β Ceti". Sa Favata, F.; Hussain, G. A. J.; Battrick, B. (mga pat.). Proceedings of the 13th Cambridge Workshop on Cool Stars, Stellar Systems and the Sun, held 5-9 July, 2004 in Hamburg, Germany. European Space Agency. p. 931. Bibcode:2005ESASP.560..931S.
{{cite conference}}: Unknown parameter|booktitle=ignored (|book-title=suggested) (tulong); Unknown parameter|month=ignored (tulong)CS1 maint: date auto-translated (link) - ↑ 7.0 7.1 Berio, P.; atbp. (2011), "Chromosphere of K giant stars. Geometrical extent and spatial structure detection", Astronomy & Astrophysics, 535: A59, arXiv:1109.5476, Bibcode:2011A&A...535A..59B, doi:10.1051/0004-6361/201117479
{{citation}}: Unknown parameter|month=ignored (tulong)CS1 maint: date auto-translated (link) - ↑ 8.0 8.1 8.2 Massarotti, Alessandro; atbp. (2008). "Rotational and Radial Velocities for a Sample of 761 HIPPARCOS Giants and the Role of Binarity". The Astronomical Journal. 135 (1): 209–231. Bibcode:2008AJ....135..209M. doi:10.1088/0004-6256/135/1/209.
{{cite journal}}: Unknown parameter|month=ignored (tulong)CS1 maint: date auto-translated (link) - ↑ "Bright Star Catalogue, 5th Revised Ed. (Hoffleit+, 1991)". VizieR. Centre de Données astronomiques de Strasbourg. Nakuha noong 2010-09-30.
{{cite web}}: CS1 maint: date auto-translated (link) - ↑ "Beta Ceti: Giant Star's Corona Brightens with Age". Chandra Photo Album. Harvard-Smithsonian Center for Astrophysics. 20 Pebrero 2009. Nakuha noong 2011-12-28.
{{cite web}}: CS1 maint: date auto-translated (link) - ↑ "bet Cet -- Variable Star". SIMBAD. Centre de Données astronomiques de Strasbourg. Nakuha noong 2010-09-30.
{{cite web}}: CS1 maint: date auto-translated (link)
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