Pi Eridani
Template:Short description 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 Pi Eridani, Latinized from π Eridani, is a star in the constellation Eridanus. It has an apparent visual magnitude of 4.40,[1] which is bright enough to be seen on a dark, clear night. Based upon parallax measurements, it is located roughly 480 light years from the Sun.
This is an evolved red giant star with a stellar classification of M1 III,[2] and is currently on the asymptotic giant branch.[3] It is a slow irregular variable type LB that can increase in magnitude up to 4.38.[4][5] The measured angular diameter of this star is Template:Val.[6] At the estimated distance of Pi Eridani, this yields a physical size of about 77 times the radius of the Sun.[7] It shines with 1,123[8] times the luminosity of the Sun from an outer atmosphere at an effective temperature of 3,841 K.[8]
References
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