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Main-sequence star · Coma Berenices

Alpha Comae Berenices

Knowledge graphAlpha Com42 ComHR 4969HD 114379

Scientific overview

Alpha Comae Berenices is a main-sequence star in the constellation Coma Berenices (Comae Berenices), lying about 46.72 light-years from Earth.

Class F. Yellow-white stars, somewhat hotter and more massive than the Sun. Such stars have surface temperatures around 6,000–7,500 K and appear yellow-white to the eye.

Physical properties

Spectral typeF5 V
Luminosity classV
Apparent magnitude5.17
Absolute magnitude4.39
Luminosity (Sun = 1)1.528
Distance46.72 ly (14.32 pc)

Values are real catalogue data; fields without a reliable value are omitted, never estimated.

Evolution

A main-sequence star fuses hydrogen into helium in its core. It will remain on the main sequence for most of its life before evolving into a giant.

Location in the sky

Constellation
Coma Berenices
Hemisphere
Northern
Best seen
Spring (N. evening sky)
RA / Dec
13.1664h / 17.529°

Knowledge connections

  • In constellationComa Berenices
  • Part of systemDiadem

Sources

The primary and reference sources this topic draws on.

  • HYG DatabaseHYG Database (Hipparcos + Yale Bright Star + Gliese), by D. Nash / astronexus

    Aggregated, openly-licensed star catalogue combining Hipparcos, the Yale Bright Star Catalogue, and the Gliese Catalogue of Nearby Stars.

  • HipparcosESA Hipparcos space astrometry mission

    High-precision parallax, magnitude, and position for ~118,000 stars.