| absmag_v = 4.13[7]
}}{{Starbox detail
| mass = 1.079[12]
| radius = 1.18[12]
| luminosity =
| temperature = 5,989[4]
| metal_fe = +0.05[4]
| gravity = 4.06[4]
| rotational_velocity = 5.03[5]
| age_gyr = 3.2[7]
}}{{Starbox catalog
| names = 56 Aurigae, ADS 5425, BD+43°1595, FK5 255, GJ 245, HD 48682, HIP 32480, HR 2483, SAO 41330.[19]
}}{{Starbox reference
| Simbad=psi05+Aur
}}{{Starbox end}}Psi5 Aurigae (ψ5 Aur, ψ5 Aurigae) is a star[20] in the northern constellation of Auriga. It is faintly visible to the naked eye with an apparent visual magnitude of 5.25.[3] Based upon parallax measurements made during the Hipparcos mission, this star is approximately {{Convert|53.9|ly|pc|abbr=off|lk=on}} distant from Earth.[ There is an optical companion[20] which is 36 arcseconds away and has an apparent magnitude of +8.4.]
The spectrum of this star shows it to be a G-type main sequence star with a stellar classification of G0 V.[4] Thought to be around 4 billion years old, it is similar in size, mass,[12] and composition to the Sun,[4] making this a solar analog. It is radiating energy into space at an effective temperature of 5,989 K,[4] giving it the golden-hued glow of a G-type star.[28]
Observation in the infrared shows an excess emission that suggests the presence of a circumstellar disk of dust, known as a debris disk. This material has a mean temperature of 60 K, indicating that it is orbiting at a distance of about 29 astronomical units from the host star. The dust has about half the mass of the Moon and is around 600 million years old.[29] The star is being examined for evidence of extrasolar planets,[30] but none have been found so far.
References
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Note: see VizieR catalogue I/311.