Proxima Centauri - Revision history

FredericBernard: Tidy up references and fix broken one, add categories and Template:Stars

2018-06-17T13:52:22Z

Tidy up references and fix broken one, add categories and Template:Stars

FredericBernard: Fix template

2018-01-10T12:38:03Z

Fix template

DavidB4-bot: /* top */clean up & uniformity

2016-07-13T17:57:24Z

top: clean up & uniformity

Joaquín Martínez: Reverted edits by Sldaaaaafdd (talk) to last revision by KevinDavis

2015-05-05T17:07:37Z

Reverted edits by Sldaaaaafdd (talk) to last revision by KevinDavis

KevinDavis at 00:22, September 28, 2011

2011-09-28T00:22:50Z

BMcP: Added night sky template and info. Added info about the star.

2009-12-03T17:39:34Z

Added night sky template and info. Added info about the star.

BMcP: Got thumbnail to work, required a specific pixel width.

2009-06-24T16:13:19Z

Got thumbnail to work, required a specific pixel width.

Joaquín Martínez at 14:59, June 24, 2009

2009-06-24T14:59:14Z

BMcP: fixed image, supposed to be Proxima Centauri

2009-06-24T14:37:31Z

fixed image, supposed to be Proxima Centauri

BMcP: Added Barnard's Star image

2009-06-24T14:36:23Z

Added Barnard's Star image

@@ Line 2: / Line 2: @@
 | image           =Position_from_Proxima_Centauri.png
 | designation     =Proxima Centauri
-| rightascension  =14<sup>h</sup> 29<sup>m</sup> 42.9487<sup>s</sup>
+| rightascension  =14<sup>h</sup> 29<sup>m</sup> 42.9487<sup>s</sup><ref name=hipp>van Leeuwen, F. (2007). Validation of the new Hipparcos reduction. ''Astronomy & Astrophysics'', 474(2), pp.653-664. [https://arxiv.org/abs/0708.1752 arXiv:0708.1752]</ref>
-| declination     =−62<sup>o</sup> 40′ 46.141″
+| declination     =−62° 40′ 46.141″<ref name=hipp/>
-| distance        =4.22 ly
+| distance        =4.243 ly<ref name=constellation-guide>[http://www.constellation-guide.com/proxima-centauri/ Proxima Centauri] from constellation-guide.com</ref>
 | constellation   =Centaurus
-| type            =Star
+| type            =Red dwarf
 | dimensions      =
-| magnitude       =Apparent: 11.05<br />Absolute: 15.49
+| magnitude       =Apparent: +11.05<ref name=simbad>[http://simbad.u-strasbg.fr/simbad/sim-id?Ident=proxima+centauri&NbIdent=1&Radius=2&Radius.unit=arcmin&submit=submit+id Proxima centauri] from the [http://simbad.u-strasbg.fr/simbad SIMBAD Astronomical Database]</ref><br/>Absolute: +15.49<ref>From definition of absolute magnitude, using apparent magnitude (+11.05) and distance (4.243 ly) given here.</ref>
 | redshift        =
-| radvelocity     =−21.7 ± 1.8 km/s
+| radvelocity     =−22.4±0.5 km/s<ref name=Torres>Torres, C., Quast, G., da Silva, L., de la Reza, R., Melo, C. and Sterzik, M. (2006). Search for associations containing young stars (SACY): I. Sample & Searching Method. ''Astronomy & Astrophysics'', 460(3), pp.695-708. [https://arxiv.org/abs/astro-ph/0609258 arXiv:astro-ph/0609258]</ref>
-| propmotion      =RA: −3775.40[1] mas/yr<br />Dec.: 769.33[1] mas/yr
+| propmotion      =RA: −3775.75 mas/yr<ref name=hipp/><br />Dec.: 769.33 mas/yr<ref name=hipp/>
-| parallax        =768.7 ± 0.3 mas
+| parallax        =769.8±6.1 mas<ref name=hipp/>
 }}
-'''Proxima Centauri''' is a spectral class M5.5 Red Dwarf [[star]] in the constellation of [[Centaurus]].  At just over 4.22 [[Light year]]s away Proxima Centauri is the nearest star to the [[Solar System]].  It was first discovered in 1915 by the astronomer Robert Innes and is not visible by the naked eye. It is often considered the third star in the [[Alpha Centauri]] system due to having the same proper motion as Alpha Centauri A & B.  Due to the star's great distance of around 15,000AUs (roughly one-fifth of a light year) from Alpha Centauri A & B, astronomers debate if Proxima Centauri is gravitationally bound to the other two stars.
+'''Proxima Centauri''' is a spectral class M5.5Ve [[red dwarf]] [[star]] in the constellation of [[Centaurus]].<ref name=constellation-guide/> At just over 4.243 [[Light year]]s away, Proxima Centauri is the nearest star to the [[Solar System]]. It was first discovered in 1915 by the astronomer Robert Innes and is not visible by the naked eye. It is often considered the third star in the [[Alpha Centauri]] system due to having the same proper motion as Alpha Centauri A & B. Due to the star's great distance of around 15,000&nbsp;AUs (roughly one-fifth of a light year) from Alpha Centauri A & B, astronomers debate if Proxima Centauri is gravitationally bound to the other two stars.
-Due to the close proximity of the star, its angular diameter can be measured directly, revealing a diameter 14.5% the size of our Sun.  Proxima Centauri appears to have only 10.7% of the sun's mass, and a visual luminosity so low, it would be 19,000 times less luminous then our Sun is if it were at the same distance.<ref>http://www.solstation.com/stars/alp-cent3.htm</ref>
+Due to the close proximity of the star, its angular diameter can be measured directly, revealing a diameter 14.5% the size of our Sun. Proxima Centauri appears to have only 10.7% of the sun's mass, and a visual luminosity so low, it would be 19,000 times less luminous then our Sun is if it were at the same distance.<ref>[http://www.solstation.com/stars/alp-cent3.htm Alpha Centauri-3] from solstation.com</ref>
-Proxima Centauri, like many M class [[red dwarf]]s, is a [[flare star]] that may brighten suddenly to many times its normal luminosity.  Visual evidence of such flare activity occurred from May to August 1995 when several fares were recorded.<ref>http://www.csc.villanova.edu/~astronom/obs96/node26.html</ref><ref>http://www.sciencemag.org/cgi/content/abstract/268/5215/1327</ref>
+Proxima Centauri, like many M class [[red dwarf]]s, is a [[flare star]] that may brighten suddenly to many times its normal luminosity. Visual evidence of such flare activity occurred from May to August 1995 when several fares were recorded.<ref>Davenport, J., Kipping, D., Sasselov, D., Matthews, J. and Cameron, C. (2016). Most Observations of Our Nearest Neighbor: Flares on Proxima Centauri. ''The Astrophysical Journal'', 829(2), p.L31. [https://arxiv.org/abs/1608.06672 arXiv:1608.06672 [astro-ph.SR]]</ref><ref>[http://www.sciencemag.org/cgi/content/abstract/268/5215/1327 Solar-Like M-Class X-ray Flares on Proxima Centauri Observed by the ASCA Satellite] from sciencemag.org</ref>
-At present, Proxima Centauri is moving towards us at a rate of 21.7&nbsp;km/s.  The star will reach its closest approach to our [[Solar System]] in some 26,700 years and will be only 3.11 light years away at this point, afterward the star will slowly move way.<ref>http://adsabs.harvard.edu/abs/2001A&A...379..634G</ref>
+At present, Proxima Centauri is moving towards us at a rate of 22.4&nbsp;km/s.<ref name=Torres/> The star will reach its closest approach to our [[Solar System]] in some 26,700 years and will be only 3.11 light years away at this point, afterwards the star will slowly move way.<ref>García-Sánchez, J., Weissman, P., Preston, R., Jones, D., Lestrade, J., Latham, D., Stefanik, R. and Paredes, J. (2001). Stellar encounters with the solar system. ''Astronomy & Astrophysics'', 379(2), pp.634-659. [http://adsabs.harvard.edu/abs/2001A&A...379..634G Online]</ref>
-Thus far, the search for substellar companions orbiting Proxima Centauri have yielded no results, more precise instruments would be required to find an Earth sized world. Due to the star's extremely small [[habitable zone]] and the sudden increase in electromagnetic radiation from occasional flares, scientists debate if a life-bearing planet could exist there at all.<ref>http://www.liebertonline.com/doi/abs/10.1089/ast.2006.0124</ref>
+Thus far, the search for substellar companions orbiting Proxima Centauri have yielded no results, more precise instruments would be required to find an Earth sized world. Due to the star's extremely small [[habitable zone]] and the sudden increase in electromagnetic radiation from occasional flares, scientists debate if a life-bearing planet could exist there at all.<ref>Tarter, J. C. et al. (2007). A Re-appraisal of the Habitability of Planets Around M Dwarf Stars. ''Astrobiology'', 7(1), pp.30-65. [https://arxiv.org/abs/astro-ph/0609799 arXiv:astro-ph/0609799]</ref>
 ==References==
 {{reflist}}

@@ Line 5: / Line 5: @@
 | declination     =−62<sup>o</sup> 40′ 46.141″
 | distance        =4.22 ly
-| constellation   =[[Centaurus]]
+| constellation   =Centaurus
-| type            =[[Star]]
+| type            =Star
 | dimensions      =
 | magnitude       =Apparent: 11.05<br />Absolute: 15.49
 | redshift        =

@@ Line 16: / Line 16: @@
 '''Proxima Centauri''' is a spectral class M5.5 Red Dwarf [[star]] in the constellation of [[Centaurus]].  At just over 4.22 [[Light year]]s away Proxima Centauri is the nearest star to the [[Solar System]].  It was first discovered in 1915 by the astronomer Robert Innes and is not visible by the naked eye. It is often considered the third star in the [[Alpha Centauri]] system due to having the same proper motion as Alpha Centauri A & B.  Due to the star's great distance of around 15,000AUs (roughly one-fifth of a light year) from Alpha Centauri A & B, astronomers debate if Proxima Centauri is gravitationally bound to the other two stars.
-Due to the close proximity of the star, its angular diameter can be measured directly, revealing a diameter 14.5% the size of our Sun.  Proxima Centauri appears to have only 10.7% of the sun's mass, and a visual luminosity so low, it would be 19,000 times less luminous then our Sun is if it were at the same distance<ref>http://www.solstation.com/stars/alp-cent3.htm</ref>.
+Due to the close proximity of the star, its angular diameter can be measured directly, revealing a diameter 14.5% the size of our Sun.  Proxima Centauri appears to have only 10.7% of the sun's mass, and a visual luminosity so low, it would be 19,000 times less luminous then our Sun is if it were at the same distance.<ref>http://www.solstation.com/stars/alp-cent3.htm</ref>
-Proxima Centauri, like many M class [[red dwarf|red dwarfs]], is a [[flare star]] that may brighten suddenly to many times its normal luminosity.  Visual evidence of such flare activity occurred from May to August 1995 when several fares were recorded<ref>http://www.csc.villanova.edu/~astronom/obs96/node26.html</ref><ref>http://www.sciencemag.org/cgi/content/abstract/268/5215/1327</ref>.
+Proxima Centauri, like many M class [[red dwarf]]s, is a [[flare star]] that may brighten suddenly to many times its normal luminosity.  Visual evidence of such flare activity occurred from May to August 1995 when several fares were recorded.<ref>http://www.csc.villanova.edu/~astronom/obs96/node26.html</ref><ref>http://www.sciencemag.org/cgi/content/abstract/268/5215/1327</ref>
-At present, Proxima Centauri is moving towards us at a rate of 21.7 km/s.  The star will reach its closest approach to our [[Solar System]] in some 26,700 years and will be only 3.11 light years away at this point, afterward the star will slowly move way.<ref>http://adsabs.harvard.edu/abs/2001A&A...379..634G</ref>
+At present, Proxima Centauri is moving towards us at a rate of 21.7&nbsp;km/s.  The star will reach its closest approach to our [[Solar System]] in some 26,700 years and will be only 3.11 light years away at this point, afterward the star will slowly move way.<ref>http://adsabs.harvard.edu/abs/2001A&A...379..634G</ref>
-Thus far, the search for substellar companions orbiting Proxima Centauri have yielded no results, more precise instruments would be required to find an Earth sized world. Due to the star's extremely small [[habitable zone]] and the sudden increase in electromagnetic radiation from occasional flares, scientists debate if a life-bearing planet could exist there at all<ref>http://www.liebertonline.com/doi/abs/10.1089/ast.2006.0124</ref>.
+Thus far, the search for substellar companions orbiting Proxima Centauri have yielded no results, more precise instruments would be required to find an Earth sized world. Due to the star's extremely small [[habitable zone]] and the sudden increase in electromagnetic radiation from occasional flares, scientists debate if a life-bearing planet could exist there at all.<ref>http://www.liebertonline.com/doi/abs/10.1089/ast.2006.0124</ref>
 [[Category:Astronomy]]

@@ Line 14: / Line 14: @@
 | parallax        =768.7 ± 0.3 mas
 }}
 '''Proxima Centauri''' is a spectral class M5.5 Red Dwarf [[star]] in the constellation of [[Centaurus]].  At just over 4.22 [[Light year]]s away Proxima Centauri is the nearest star to the [[Solar System]].  It was first discovered in 1915 by the astronomer Robert Innes and is not visible by the naked eye. It is often considered the third star in the [[Alpha Centauri]] system due to having the same proper motion as Alpha Centauri A & B.  Due to the star's great distance of around 15,000AUs (roughly one-fifth of a light year) from Alpha Centauri A & B, astronomers debate if Proxima Centauri is gravitationally bound to the other two stars.

@@ Line 1: / Line 1: @@
-[[Image:Position_from_Proxima_Centauri.png‎‎|thumb|300px|right|Location of Proxima Centauri]]
+{{Night Sky
-'''Proxima Centauri''' is a spectral class M5.5 Red Dwarf [[star]] in the constellation of Centaurus.  At just over 4.22 [[Light year]]s away Proxima Centauri is the nearest star to the [[Solar System]].  It was first discovered in 1915 by the astronomer Robert Innes and is not visible by the naked eye. It is often considered the third star in the [[Alpha Centauri]] system due to having the same proper motion as Alpha Centauri A & B.  Due to the star's great distance of around 15,000AUs (roughly one-fifth of a light year) from Alpha Centauri A & B, astronomers debate if Proxima Centauri is gravitationally bound to the other two stars.
+| image           =Position_from_Proxima_Centauri.png
 Due to the close proximity of the star, its angular diameter can be measured directly, revealing a diameter 14.5% the size of our Sun.  Proxima Centauri appears to have only 10.7% of the sun's mass, and a visual luminosity so low, it would be 19,000 times less luminous then our Sun is if it were at the same distance<ref>http://www.solstation.com/stars/alp-cent3.htm</ref>.
-Proxima Centauri, like many M class red dwarfs, is a [[flare star]] that may brighten suddenly to many times its normal luminosity.  Visual evidence of such flare activity occurred from May to August 1995 when several fares were recorded<ref>http://www.csc.villanova.edu/~astronom/obs96/node26.html</ref><ref>http://www.sciencemag.org/cgi/content/abstract/268/5215/1327</ref>.
+Proxima Centauri, like many M class [[red dwarf|red dwarfs]], is a [[flare star]] that may brighten suddenly to many times its normal luminosity.  Visual evidence of such flare activity occurred from May to August 1995 when several fares were recorded<ref>http://www.csc.villanova.edu/~astronom/obs96/node26.html</ref><ref>http://www.sciencemag.org/cgi/content/abstract/268/5215/1327</ref>.
 Thus far, the search for substellar companions orbiting Proxima Centauri have yielded no results, more precise instruments would be required to find an Earth sized world. Due to the star's extremely small [[habitable zone]] and the sudden increase in electromagnetic radiation from occasional flares, scientists debate if a life-bearing planet could exist there at all<ref>http://www.liebertonline.com/doi/abs/10.1089/ast.2006.0124</ref>.

← Older revision	Revision as of 17:07, May 5, 2015
(No difference)

← Older revision		Revision as of 16:13, June 24, 2009
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−	[[Image:Position_from_Proxima_Centauri.png‎‎\|300px\|right\|Location of Proxima Centauri]]	+	[[Image:Position_from_Proxima_Centauri.png‎‎\|thumb\|300px\|right\|Location of Proxima Centauri]]
	'''Proxima Centauri''' is a spectral class M5.5 Red Dwarf [[star]] in the constellation of Centaurus. At just over 4.22 [[Light year]]s away Proxima Centauri is the nearest star to the [[Solar System]]. It was first discovered in 1915 by the astronomer Robert Innes and is not visible by the naked eye. It is often considered the third star in the [[Alpha Centauri]] system due to having the same proper motion as Alpha Centauri A & B. Due to the star's great distance of around 15,000AUs (roughly one-fifth of a light year) from Alpha Centauri A & B, astronomers debate if Proxima Centauri is gravitationally bound to the other two stars.		'''Proxima Centauri''' is a spectral class M5.5 Red Dwarf [[star]] in the constellation of Centaurus. At just over 4.22 [[Light year]]s away Proxima Centauri is the nearest star to the [[Solar System]]. It was first discovered in 1915 by the astronomer Robert Innes and is not visible by the naked eye. It is often considered the third star in the [[Alpha Centauri]] system due to having the same proper motion as Alpha Centauri A & B. Due to the star's great distance of around 15,000AUs (roughly one-fifth of a light year) from Alpha Centauri A & B, astronomers debate if Proxima Centauri is gravitationally bound to the other two stars.

← Older revision		Revision as of 14:59, June 24, 2009
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−	[[Image:Position_from_Proxima_Centauri.png‎‎\|~~thumb~~\|right\|Location of Proxima Centauri]]	+	[[Image:Position_from_Proxima_Centauri.png‎‎\|300px\|right\|Location of Proxima Centauri]]
	'''Proxima Centauri''' is a spectral class M5.5 Red Dwarf [[star]] in the constellation of Centaurus. At just over 4.22 [[Light year]]s away Proxima Centauri is the nearest star to the [[Solar System]]. It was first discovered in 1915 by the astronomer Robert Innes and is not visible by the naked eye. It is often considered the third star in the [[Alpha Centauri]] system due to having the same proper motion as Alpha Centauri A & B. Due to the star's great distance of around 15,000AUs (roughly one-fifth of a light year) from Alpha Centauri A & B, astronomers debate if Proxima Centauri is gravitationally bound to the other two stars.		'''Proxima Centauri''' is a spectral class M5.5 Red Dwarf [[star]] in the constellation of Centaurus. At just over 4.22 [[Light year]]s away Proxima Centauri is the nearest star to the [[Solar System]]. It was first discovered in 1915 by the astronomer Robert Innes and is not visible by the naked eye. It is often considered the third star in the [[Alpha Centauri]] system due to having the same proper motion as Alpha Centauri A & B. Due to the star's great distance of around 15,000AUs (roughly one-fifth of a light year) from Alpha Centauri A & B, astronomers debate if Proxima Centauri is gravitationally bound to the other two stars.

← Older revision		Revision as of 14:37, June 24, 2009
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−	[[Image:~~Barnardstar2006~~.~~jpg‎~~\|thumb\|right\|Location of ~~Barnard's Star~~]]	+	[[Image:Position_from_Proxima_Centauri.png‎‎\|thumb\|right\|Location of Proxima Centauri]]
	'''Proxima Centauri''' is a spectral class M5.5 Red Dwarf [[star]] in the constellation of Centaurus. At just over 4.22 [[Light year]]s away Proxima Centauri is the nearest star to the [[Solar System]]. It was first discovered in 1915 by the astronomer Robert Innes and is not visible by the naked eye. It is often considered the third star in the [[Alpha Centauri]] system due to having the same proper motion as Alpha Centauri A & B. Due to the star's great distance of around 15,000AUs (roughly one-fifth of a light year) from Alpha Centauri A & B, astronomers debate if Proxima Centauri is gravitationally bound to the other two stars.		'''Proxima Centauri''' is a spectral class M5.5 Red Dwarf [[star]] in the constellation of Centaurus. At just over 4.22 [[Light year]]s away Proxima Centauri is the nearest star to the [[Solar System]]. It was first discovered in 1915 by the astronomer Robert Innes and is not visible by the naked eye. It is often considered the third star in the [[Alpha Centauri]] system due to having the same proper motion as Alpha Centauri A & B. Due to the star's great distance of around 15,000AUs (roughly one-fifth of a light year) from Alpha Centauri A & B, astronomers debate if Proxima Centauri is gravitationally bound to the other two stars.

← Older revision		Revision as of 14:36, June 24, 2009
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−	{{Image ~~request}}~~	+	[[Image:Barnardstar2006.jpg‎\|thumb\|right\|Location of Barnard's Star]]
	'''Proxima Centauri''' is a spectral class M5.5 Red Dwarf [[star]] in the constellation of Centaurus. At just over 4.22 [[Light year]]s away Proxima Centauri is the nearest star to the [[Solar System]]. It was first discovered in 1915 by the astronomer Robert Innes and is not visible by the naked eye. It is often considered the third star in the [[Alpha Centauri]] system due to having the same proper motion as Alpha Centauri A & B. Due to the star's great distance of around 15,000AUs (roughly one-fifth of a light year) from Alpha Centauri A & B, astronomers debate if Proxima Centauri is gravitationally bound to the other two stars.		'''Proxima Centauri''' is a spectral class M5.5 Red Dwarf [[star]] in the constellation of Centaurus. At just over 4.22 [[Light year]]s away Proxima Centauri is the nearest star to the [[Solar System]]. It was first discovered in 1915 by the astronomer Robert Innes and is not visible by the naked eye. It is often considered the third star in the [[Alpha Centauri]] system due to having the same proper motion as Alpha Centauri A & B. Due to the star's great distance of around 15,000AUs (roughly one-fifth of a light year) from Alpha Centauri A & B, astronomers debate if Proxima Centauri is gravitationally bound to the other two stars.