Stars of Serpens Codexery

Psi Serpentis

Triple star system in Serpens Caput, 47.8 light years away.

Psi Serpentis, a triple star system in the Serpens Caput section of Serpens, sits about 47.8 light-years away. Barely visible to the naked eye at magnitude 5.84, it passed closest to the Sun roughly 585,000 years ago. The primary star, a G5 V yellow dwarf, is a solar analog with 99.5% of the Sun’s mass and 95% of its radius, shining at 84% of solar luminosity with a temperature of 5,667 K. Its two fainter companions, both M3 red dwarfs, orbit each other every 6.57 years at a separation of 0.22 arcseconds, while the pair orbits the primary every 528.79 years.

Quick Facts

Apparent visual magnitude
5.84
Distance from sun
47.8 light years
Parallax
68.22 mas
Stellar classification (primary)
G5 V
Mass (primary)
99.5% of the Sun
Radius (primary)
0.95 times the Sun
Luminosity (primary)
84% of the solar luminosity
Effective temperature (primary)
5,667 K

Facts from the source article.

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