Psi2 Aurigae
Template:Short description Template:For
Template:Starbox begin Template:Starbox image Template:Starbox observe Template:Starbox character Template:Starbox astrometry Template:Starbox detail Template:Starbox catalog Template:Starbox reference Template:Starbox end
Psi2 Aurigae, Latinized from ψ2 Aurigae, is a star in the constellation Auriga. It is faintly visible to the naked eye with an apparent visual magnitude of 4.79.[1] Based upon parallax measurements, this star is approximately Template:Convert away from the Earth. At that distance, the brightness of the star is diminished by 0.07 in magnitude from extinction caused by interstellar gas and dust.[2]
Most studies categorized this as a K-type giant star with a stellar classification of K3 III.[3] However, the results of a study published in 2003 list it with a classification of K3 Iab:, which would instead suggest it is a supergiant star.[4][5] The measured angular diameter of this star, after correction for limb darkening, is Template:Nowrap.[6] At the estimated distance of this star,[7] this yields a physical size of about 27 times the radius of the Sun.[8] It is radiating 304[9] times the Sun's luminosity from its enlarged photosphere at an effective temperature of 4,410 K.[10]
It was also known to be part of a much bigger constellation named Telescopium Herschelii. It was also the constellation's second-brightest star before it was unrecognized by the International Astronomical Union (IAU).
See also
References
External links
- ↑ Cite error: Invalid
<ref>tag; no text was provided for refs namedclpl4_99 - ↑ Cite error: Invalid
<ref>tag; no text was provided for refs namedaaa430_165 - ↑ Cite error: Invalid
<ref>tag; no text was provided for refs namedapj121_118 - ↑ Cite error: Invalid
<ref>tag; no text was provided for refs namedaj125_6_3311 - ↑ Cite error: Invalid
<ref>tag; no text was provided for refs namedSIMBAD - ↑ Cite error: Invalid
<ref>tag; no text was provided for refs namedaaa431_773 - ↑ Cite error: Invalid
<ref>tag; no text was provided for refs namedaaa474_2_653 - ↑ Cite error: Invalid
<ref>tag; no text was provided for refs namedlang2006 - ↑ Cite error: Invalid
<ref>tag; no text was provided for refs namedAnderson2012 - ↑ Cite error: Invalid
<ref>tag; no text was provided for refs namedapjss74