55 കാൻക്രി
  Location of 55 Cancri (circled) | |
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Cancer |
| 55 Cancri A | |
| Right ascension | 08h 52m 35.8113s[1] |
| Declination | +28° 19′ 50.957″[1] |
| Apparent magnitude (V) | 5.95[2] |
| 55 Cancri B | |
| Right ascension | 08h 52m 40.8627s[3] |
| Declination | +28° 19′ 58.825″ |
| Apparent magnitude (V) | 13.15[4] |
| സ്വഭാവഗുണങ്ങൾ | |
| സ്പെക്ട്രൽ ടൈപ്പ് | K0IV-V[5] |
| U-B കളർ ഇൻഡക്സ് | 0.63[6] |
| B-V കളർ ഇൻഡക്സ് | 0.87[6] |
| ആസ്ട്രോമെട്രി | |
| കേന്ദ്രാപഗാമി പ്രവേഗം(radial velocity) (Rv) | 27.51[1] km/s |
| പ്രോപ്പർ മോഷൻ (μ) | RA: −485.872±0.134[1] mas/yr Dec.: −233.651±0.109[1] mas/yr |
| ദൃഗ്‌ഭ്രംശം (π) | 79.4274 ± 0.077[1] mas |
| ദൂരം | 41.06 ± 0.04 ly (12.59 ± 0.01 pc) |
| കേവലകാന്തിമാനം (MV) | +5.50[7] |
| ഡീറ്റെയിൽസ് | |
| പിണ്ഡം | 0.960±0.067[8] M☉ |
| വ്യാസാർദ്ധം | 0.960±0.018[8] R☉ |
| ഉപരിതല ഗുരുത്വം (log g) | 4.37[5] |
| പ്രകാശതീവ്രത | 0.589±0.014[8] L☉ |
| താപനില | 5,165±46[8] K |
| സ്റ്റെല്ലാർ റോടേഷൻ | 42.2 d |
| മറ്റു ഡെസിഗ്നേഷൻസ് | |
| ഡാറ്റാബേസ് റെഫെറെൻസുകൾ | |
| SIMBAD | data |
| ARICNS | data |
കർക്കടകം നക്ഷത്രരാശിയുടെ രാശിചക്രത്തിൽ സൂര്യനിൽ നിന്ന് 41 [9] പ്രകാശവർഷം അകലെ സ്ഥിതിചെയ്യുന്ന ഒരു ദ്വന്ദ്വനക്ഷത്രവ്യവസ്ഥയാണ് 55 കാൻക്രി. ഇതിന് ബെയറുടെ നാമകരണ സമ്പ്രദായം അനുസരിച്ചുള്ള പേര് Rho1 കാൻക്രി ((ρ1 കാൻക്രി) എന്നും ഫ്ലാംസ്റ്റീഡിന്റെ നാമകരണ സമ്പ്രദായം അനുസരിച്ചുള്ള പേര് (ചുരുക്കത്തിൽ 55 Cnc) 55 കാൻക്രി എന്നും കാണപ്പെടുന്നു. കെ-ടൈപ്പ് നക്ഷത്രവും (നാമകരണം 55 കാൻക്രി എ, കോപ്പർനിക്കസ് / /koʊˈpɜːrnɪkəs/)[10]) ഒരു മഞ്ഞക്കുള്ളനും ഒരു ചുവപ്പുകുള്ളനും (55 കാൻക്രി ബി) അടങ്ങിയ ദ്വന്ദ്വനക്ഷത്രവ്യവസ്ഥയാണിത്.
ഇതും കാണുക
തിരുത്തുക
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അവലംബം
തിരുത്തുക- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 Brown, A. G. A.; et al. (Gaia collaboration) (August 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.
{{cite journal}}: Unknown parameter|displayauthors=ignored (|display-authors=suggested) (help) Gaia Data Release 2 Vizier catalog entry - ↑ Van Belle, Gerard T.; von Braun, Kaspar (2009). "Directly Determined Linear Radii and Effective Temperatures of Exoplanet Host Stars". The Astrophysical Journal. 694 (2): 1085–1098. arXiv:0901.1206. Bibcode:2009ApJ...694.1085V. doi:10.1088/0004-637X/694/2/1085.
- ↑ Brown, A. G. A.; et al. (Gaia collaboration) (August 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. Gaia DR2 record for this source at VizieR.
{{cite journal}}: Cite journal requires|journal=(help); Missing or empty|title=(help)CS1 maint: multiple names: authors list (link) CS1 maint: numeric names: authors list (link) - ↑ Zacharias, N.; Finch, C. T.; Girard, T. M.; Henden, A.; Bartlett, J. L.; Monet, D. G.; Zacharias, M. I. (2012). "VizieR Online Data Catalog: UCAC4 Catalogue (Zacharias+, 2012)". Vizier Online Data Catalog. Bibcode:2012yCat.1322....0Z.
- ↑ 5.0 5.1 Gray, R. O.; Corbally, C. J.; Garrison, R. F.; McFadden, M. T.; Robinson, P. E. (2003). "Contributions to the Nearby Stars (NStars) Project: Spectroscopy of Stars Earlier than M0 within 40 Parsecs: The Northern Sample. I". The Astronomical Journal. 126 (4): 2048. arXiv:astro-ph/0308182. Bibcode:2003AJ....126.2048G. doi:10.1086/378365.
- ↑ 6.0 6.1 Hoffleit, D.; Warren, W. H. (1995). "VizieR Online Data Catalog: Bright Star Catalogue, 5th Revised Ed. (Hoffleit+, 1991)". VizieR On-line Data Catalog: V/50. Originally published in: 1964BS....C......0H. 5050. Bibcode:1995yCat.5050....0H.
- ↑ Anderson, E.; Francis, Ch. (2012), "XHIP: An extended hipparcos compilation", Astronomy Letters, 38 (5): 331, arXiv:1108.4971, Bibcode:2012AstL...38..331A, doi:10.1134/S1063773712050015.
- ↑ 8.0 8.1 8.2 8.3 Ligi, R.; et al. (February 2016), "Radii, masses, and ages of 18 bright stars using interferometry and new estimations of exoplanetary parameters", Astronomy & Astrophysics, 586: 23, arXiv:1511.03197, Bibcode:2016A&A...586A..94L, doi:10.1051/0004-6361/201527054, A94.
- ↑ Brown, A. G. A.; et al. (Gaia collaboration) (August 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. Gaia Data Release 2 Vizier catalog entry.
{{cite journal}}: Cite journal requires|journal=(help); Missing or empty|title=(help)CS1 maint: multiple names: authors list (link) CS1 maint: numeric names: authors list (link) - ↑ "IAU Catalog of Star Names". Retrieved 28 July 2016.
കൂടുതൽ വായനയ്ക്ക്
തിരുത്തുക- Ji, Jianghui; Kinoshita, Hiroshi; Liu, Lin; Li, Guangyu (2003). "Could the 55 Cancri Planetary System Really Be in the 3[rcolon]1 Mean Motion Resonance?". The Astrophysical Journal. 585 (2): L139–L142. arXiv:astro-ph/0301636. Bibcode:2003ApJ...585L.139J. doi:10.1086/374391. ISSN 0004-637X.
- Schneider, G.; Becklin, E. E.; Smith, B. A.; Weinberger, A. J.; Silverstone, M.; Hines, D. C. (2001). "NICMOS Coronagraphic Observations of 55 Cancri". The Astronomical Journal. 121 (1): 525–537. arXiv:astro-ph/0010175. Bibcode:2001AJ....121..525S. doi:10.1086/318050. ISSN 0004-6256.
- Jayawardhana, Ray; Holland, Wayne S.; Kalas, Paul; Greaves, Jane S.; Dent, William R. F.; Wyatt, Mark C.; Marcy, Geoffrey W. (2002). "New Submillimeter Limits on Dust in the 55 Cancri Planetary System". The Astrophysical Journal. 570 (2): L93–L96. arXiv:astro-ph/0204140. Bibcode:2002ApJ...570L..93J. doi:10.1086/341101. ISSN 0004-637X.
- Zhou, Li-Yong; J. Lehto, Harry; Sun, Yi-Sui; Zheng, Jia-Qing (2004). "Apsidal corotation in mean motion resonance: the 55 Cancri system as an example". Monthly Notices of the Royal Astronomical Society. 350 (4): 1495–1502. arXiv:astro-ph/0310121. Bibcode:2004MNRAS.350.1495Z. doi:10.1111/j.1365-2966.2004.07755.x. ISSN 0035-8711.
{{cite journal}}: CS1 maint: unflagged free DOI (link) - Jayawardhana, Ray; Holland, Wayne S.; Greaves, Jane S.; Dent, William R. F.; Marcy, Geoffrey W.; Hartmann, Lee W.; Fazio, Giovanni G. (2000). "Dust in the 55 Cancri Planetary System". The Astrophysical Journal. 536 (1): 425–428. arXiv:astro-ph/0001275. Bibcode:2000ApJ...536..425J. doi:10.1086/308942. ISSN 0004-637X.
- Rasio, F. A.; Ford, E. B. (1996). "Dynamical Instabilities and the Formation of Extrasolar Planetary Systems". Science. 274 (5289): 954–956. Bibcode:1996Sci...274..954R. doi:10.1126/science.274.5289.954. ISSN 0036-8075.
- von Bloh, W.; Cuntz, M.; Franck, S.; Bounama, C. (2003). "On the Possibility of Earth-Type Habitable Planets in the 55 Cancri System". Astrobiology. 3 (4): 681–688. Bibcode:2003AsBio...3..681V. doi:10.1089/153110703322736015. ISSN 1531-1074. PMID 14987474.
- Ji, Jiang-Hui; Kinoshita, Hiroshi; Liu, Lin; Li, Guang-Yu (2009). "The dynamical architecture and habitable zones of the quintuplet planetary system 55 Cancri". Research in Astronomy and Astrophysics. 9 (6): 703–711. arXiv:0902.4328. Bibcode:2009RAA.....9..703J. doi:10.1088/1674-4527/9/6/009. ISSN 1674-4527.
- Raymond, Sean N.; Barnes, Rory; Gorelick, Noel (2008). "A Dynamical Perspective on Additional Planets in 55 Cancri". The Astrophysical Journal. 689 (1): 478–491. arXiv:0808.3295. Bibcode:2008ApJ...689..478R. doi:10.1086/592772. ISSN 0004-637X.
- Marzari, F.; Scholl, H.; Tricarico, P. (2005). "Frequency map analysis of the 3/1 resonance between planets b and c in the 55 Cancri system". Astronomy and Astrophysics. 442 (1): 359–364. Bibcode:2005A&A...442..359M. doi:10.1051/0004-6361:20053164. ISSN 0004-6361.
പുറം കണ്ണികൾ
തിരുത്തുക
55 Cancri എന്ന വിഷയവുമായി ബന്ധപ്പെട്ട ചിത്രങ്ങൾ വിക്കിമീഡിയ കോമൺസിലുണ്ട്.
- "55 (Rho1) Cancri 2". SolStation. Archived from the original on 25 June 2008. Retrieved 2008-06-12.
- Jean Schneider (2011). "Notes for star 55 Cnc". Extrasolar Planets Encyclopaedia. Retrieved 8 October 2011.
- "55 Cancri". University of Illinois. The Planet Project. Archived from the original on 17 May 2008. Retrieved 2008-06-12.
- Sanders, Robert (2004-08-31). "Astronomers searching for distant Earths find two Neptunes". UC Berkeley News. Archived from the original on 16 May 2008. Retrieved 2008-06-12.
- Ward Glen (2007-11-08). "Astronomers Find Fifth Planet Around 55 Cancri". The Starry Mirror. Archived from the original on 2007-11-10. Retrieved 2008-06-12.
- When the Gods Fall 55 Cancri in fiction.
- Extrasolar Planet Interactions Archived 2016-05-05 at the Wayback Machine. by Rory Barnes & Richard Greenberg, Lunar and Planetary Lab, University of Arizona
- The First and the second part of a computer animation of the 55 Cancri planetary system.
- Interactive visualisation of the 55 Cancri system
