55 കാൻക്രി

**55 Cancri**
Observation data Epoch J2000.0 Equinox J2000.0
Location of 55 Cancri (circled)
Constellation	Cancer
55 Cancri A
Right ascension	08^h 52^m 35.8113^s^[1]
Declination	+28° 19′ 50.957″^[1]
Apparent magnitude (V)	5.95^[2]
55 Cancri B
Right ascension	08^h 52^m 40.8627^s^[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) (R_v)	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 (M_V)	+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
Copernicus, Rho¹ Cancri, 55 Cnc, BD+28°1660, GJ 324, HD 75732, HIP 43587, HR 3522, SAO 80585
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

Book: 55 Cancri

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അവലംബം

↑ ^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

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

"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

നിർദ്ദേശാങ്കങ്ങൾ: 08^h 52^m 35.8^s, +28° 19′ 51″

[Gaia_DR2-1] 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

[vanbelle-2] 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.

[3] 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)

[ucac4-4] 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.

[nstars-5] 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.

[hr-6] 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.

[Anderson2012-7] 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.

[Ligi2016-8] 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.

[9] 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-CSN-10] "IAU Catalog of Star Names". Retrieved 28 July 2016.

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