ദക്ഷിണ ത്രിഭുജം

ദക്ഷിണാർദ്ധഖഗോളത്തിലെ ഒരു നക്ഷത്രരാശിയാണ്‌ ദക്ഷിണ ത്രിഭുജം (Triangulum Australe). താരതമ്യേന പ്രകാശമുള്ള നക്ഷത്രരാശിയായതിനാൽ ഇതിനു ചുറ്റുമുള്ള പ്രകാശം കുറഞ്ഞ നക്ഷത്രങ്ങളെ കണ്ടെത്താൻ ഇത് ഉപയോഗിക്കുന്നു. ആകാശഗംഗ ഈ നക്ഷത്രരാശിയിലൂടെ കടന്നുപോകുന്നു. പ്രകാശമുള്ള നക്ഷത്രങ്ങളായ $\alpha ,\beta ,\gamma$ എന്നിവ ചേർന്ന് നിർമ്മിക്കുന്ന ത്രികോണത്തിൽ നിന്നാണ്‌ ഈ രാശിക്ക് പേര്‌ ലഭിച്ചത്. ഈ നക്ഷത്രരാശിയിൽ മെസ്സിയർ വസ്തുക്കളൊന്നുമില്ല.

ദക്ഷിണ ത്രിഭുജം (Triangulum Australe)

വലിയ ചിത്രത്തിനായി ഇവിടെ ഞെക്കുക
ദക്ഷിണ ത്രിഭുജം രാശിയിലെ നക്ഷത്രങ്ങളുടെ പട്ടിക
ചുരുക്കെഴുത്ത്:	TrA
Genitive:	Trianguli Australis
ഖഗോളരേഖാംശം:	16 h
അവനമനം:	−65°
വിസ്തീർണ്ണം:	110 ചതുരശ്ര ഡിഗ്രി.  (83-ആമത്)
പ്രധാന നക്ഷത്രങ്ങൾ:	3
ബേയർ/ഫ്ലാംസ്റ്റീഡ് നാമങ്ങളുള്ള നക്ഷത്രങ്ങൾ:	10
അറിയപ്പെടുന്ന ഗ്രഹങ്ങളുള്ള നക്ഷത്രങ്ങൾ:	0
പ്രകാശമാനം കൂടിയ നക്ഷത്രങ്ങൾ:	3
സമീപ നക്ഷത്രങ്ങൾ:	2
ഏറ്റവും പ്രകാശമുള്ള നക്ഷത്രം:	അട്രിയ (α TrA)  (1.91m)
ഏറ്റവും സമീപസ്ഥമായ നക്ഷത്രം:	ζ TrA  (39.5 പ്രകാശവർഷം)
മെസ്സിയർ വസ്തുക്കൾ:	0
ഉൽക്കവൃഷ്ടികൾ :
സമീപമുള്ള നക്ഷത്രരാശികൾ:	സമാന്തരികം (Norma) പീഠം (Ara) ചുരുളൻ (Circinus) സ്വർഗപതംഗം (Apus)
അക്ഷാംശം +25° നും −90° നും ഇടയിൽ ദൃശ്യമാണ്‌ ജൂലൈ മാസത്തിൽ രാത്രി 9 മണിക്ക് ഏറ്റവും നന്നായി ദൃശ്യമാകുന്നു

ഇതുകൂടി കാണുക

• ത്രിഭുജം (നക്ഷത്രരാശി)

ഉറവിടങ്ങൾ

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• Inglis, Mike (2004), Astronomy of the Milky Way: Observer's Guide to the Southern Sky, New York, New York: Springer, ISBN 1-85233-742-7 {{citation}}: Invalid |ref=harv (help)
• Kanas, Nick (2007), Star Maps: History, Artistry, and Cartography, Chichester, United Kingdom: Praxis Publishing, ISBN 0-387-71668-8 {{citation}}: Invalid |ref=harv (help)
• Klepešta, Josef; Rükl, Antonín (1974) [1969], Constellations, Feltham, United Kingdom: Hamlyn, ISBN 0-600-00893-2 {{citation}}: Invalid |ref=harv (help)
• Mennickent, Ronald E.; Arenas, Jose (1998), "The Orbital Period of the SU Ursae Majoris Star EK Trianguli Australis and Evidence for Ring-Like Accretion Disks in Long-Supercycle Length SU Ursae Majoris Stars", Publications of the Astronomical Society of Japan, 50: 333–42, Bibcode:1998PASJ...50..333M, doi:10.1093/pasj/50.3.333 {{citation}}: Invalid |ref=harv (help)
• Mobberley, Martin (2009), The Caldwell Objects and How to Observe Them, New York, New York: Springer, ISBN 1-4419-0325-9 {{citation}}: Invalid |ref=harv (help)
• Moore, Patrick (2005), The Observer's Year: 366 Nights of the Universe, New York, New York: Springer, ISBN 1-85233-884-9 {{citation}}: Invalid |ref=harv (help)
• Moore, Patrick; Tirion, Wil (1997), Cambridge Guide to Stars and Planets, Cambridge, United Kingdom: Cambridge University Press, ISBN 978-0-521-58582-8 {{citation}}: Invalid |ref=harv (help)
• Motz, Lloyd; Nathanson, Carol (1991), The Constellations: An Enthusiast's Guide to the Night Sky, London, United Kingdom: Aurum Press, ISBN 1-85410-088-2 {{citation}}: Invalid |ref=harv (help)
• Nicolet, B. (1978), "Photoelectric Photometric Catalogue of Homogeneous Measurements in the UBV System", Astronomy and Astrophysics Supplement Series, 34: 1–49, Bibcode:1978A&AS...34....1N {{citation}}: Invalid |ref=harv (help)
• Russell, Henry Norris (1922), "The New International Symbols for the Constellations", Popular Astronomy, 30: 469–71, Bibcode:1922PA.....30..469R {{citation}}: Invalid |ref=harv (help)
• Schaaf, Fred (2008), The Brightest Stars: Discovering the Universe Through the Sky's Most Brilliant Stars, Hoboken, New Jersey: John Wiley and Sons, ISBN 0-471-70410-5 {{citation}}: Invalid |ref=harv (help)
• Ségransan, D.; Udry, S.; Mayor, M.; Naef, D.; Pepe, F.; Queloz, D.; Santos, N.C.; Demory, B.-O.; Figueira, P.; Gillon, M.; Marmier, M.; Mégevand, D.; Sosnowska, D.; Tamuz, O.; Triaud, A. H. M. J. (February 2010), "The CORALIE Survey for Southern Extrasolar Planets: XVI. Discovery of a Planetary System around HD 147018 and of Two Long Period and Massive Planets Orbiting HD 171238 and HD 204313", Astronomy and Astrophysics, 511: A45, arXiv:0908.1479, Bibcode:2010A&A...511A..45S, doi:10.1051/0004-6361/200912136
• Skuljan, Jovan (2004), "Accurate Orbital Parameters for the Bright Southern Spectroscopic Binary ζ Trianguli Australis – an Interesting Case of a Near-circular Orbit", Monthly Notices of the Royal Astronomical Society, 352: 975, Bibcode:2004MNRAS.352..975S, doi:10.1111/j.1365-2966.2004.07988.x {{citation}}: Invalid |ref=harv (help)CS1 maint: unflagged free DOI (link)
• Tabur, V.; Bedding, T. R. (2009), "Long-term Photometry and Periods for 261 Nearby Pulsating M Giants", Monthly Notices of the Royal Astronomical Society, 400 (4): 1945–61, arXiv:0908.3228, Bibcode:2009MNRAS.400.1945T, doi:10.1111/j.1365-2966.2009.15588.x {{citation}}: Invalid |ref=harv (help)CS1 maint: unflagged free DOI (link)
• Wagman, Morton (2003), Lost Stars: Lost, Missing and Troublesome Stars from the Catalogues of Johannes Bayer, Nicholas Louis de Lacaille, John Flamsteed, and Sundry Others, Blacksburg, Virginia: The McDonald & Woodward Publishing Company, ISBN 978-0-939923-78-6 {{citation}}: Invalid |ref=harv (help)
• Wallerstein, George; Matt, Sean; Gonzalez, Guillermo (2000), "The Carbon Cepheid RT Trianguli Australis: Additional Evidence of Triple-α and CNO Cycling", Monthly Notices of the Royal Astronomical Society, 311 (2): 414–22, Bibcode:2000MNRAS.311..414W, doi:10.1046/j.1365-8711.2000.03064.x{{citation}}: CS1 maint: unflagged free DOI (link)
• Wielen, R.; Schwan, H.; Dettbarn, C.; Lenhardt, H.; Jahreiß, H.; Jährling, R. (1999), Sixth Catalogue of Fundamental Stars (FK6). Part I. Basic Fundamental Stars with Direct Solutions, Astronomisches Rechen-Institut Heidelberg, Bibcode:1999VeARI..35....1W

Online sources

• Office of Public Outreach (24 April 2008), "Cosmic Collisions Galore!", HubbleSite, Baltimore, Maryland: Space Telescope Science Institute (STScI), retrieved 17 October 2012
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• Kaler, Jim, "Atria (Alpha Trianguli Australis)", Stars, University of Illinois, retrieved 17 October 2012
• Kaler, Jim (10 August 2007), "Beta Trianguli Australis", Stars, University of Illinois, retrieved 17 October 2012
• Polakis, Tom (2001), "Ara, Triangulum and Apus: A spectacular Myriad of Deep-sky Objects Fills this Southern Trio", Astronomy, 29 (7): 80–84, ISSN 0091-6358 {{citation}}: Invalid |ref=harv (help)
• Ridpath, Ian, "Lacaille's Grouping of Norma, Circinus, and Triangulum Australe", Star Tales, retrieved 7 June 2012
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• "Delta Trianguli Australis", SIMBAD Astronomical Database, Centre de Données astronomiques de Strasbourg, retrieved 7 June 2012
• "CPD-63 3854B", SIMBAD Astronomical Database, Centre de Données astronomiques de Strasbourg, retrieved 4 October 2012
• "Epsilon Trianguli Australis", SIMBAD Astronomical Database, Centre de Données astronomiques de Strasbourg, retrieved 7 June 2012
• "HD 138510", SIMBAD Astronomical Database, Centre de Données astronomiques de Strasbourg, retrieved 7 June 2012
• "HD 150550 – Pulsating variable Star", SIMBAD Astronomical Database, Centre de Données astronomiques de Strasbourg, retrieved 4 October 2012
• "HR 6172 – Be Star", SIMBAD Astronomical Database, Centre de Données astronomiques de Strasbourg, retrieved 4 October 2012
• "Kappa Trianguli Australis", SIMBAD Astronomical Database, Centre de Données astronomiques de Strasbourg, retrieved 4 October 2012
• "LTT 6522 – High proper-motion Star", SIMBAD Astronomical Database, Centre de Données astronomiques de Strasbourg, retrieved 8 September 2012
• "R Trianguli Australis – Classical Cepheid (delta Cep type)", SIMBAD Astronomical Database, Centre de Données astronomiques de Strasbourg, retrieved 2 September 2012
• "S Trianguli Australis – Classical Cepheid (delta Cep type)", SIMBAD Astronomical Database, Centre de Données astronomiques de Strasbourg, retrieved 2 September 2012
• "U Trianguli Australis – Cepheid variable Star", SIMBAD Astronomical Database, Centre de Données astronomiques de Strasbourg, retrieved 2 September 2012
• "X Trianguli Australis – Carbon Star", SIMBAD Astronomical Database, Centre de Données astronomiques de Strasbourg, retrieved 9 September 2012

പുറം കണ്ണികൾ

• The Deep Photographic Guide to the Constellations: Triangulum Australe
• Starry Night Photography: Triangulum Australe

    88 ആധുനിക നക്ഷത്രരാശികൾ