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25The UMa The Sun
Surface temperature
6,500 K
Radius
2.30 × the Sun
Luminosity
8.5 × the Sun
Spectral type
F6IV
Diagram, not a photograph. Colour from the star’s measured colour index; size from its luminosity and temperature, drawn to one scale with the Sun. Source: HYG stellar database.

Cataloged star · Database record + computed analysis

25The UMa

HIP 46853 · HD 82328

A real star from the HYG catalog in the constellation Ursa Major.

44.0 light-years away Apparent magnitude 3.17

F-type: yellow-white

Its spectral type is F6IV: slightly hotter and larger than the Sun, with lifetimes of a few billion years. From its measured color, its surface temperature is roughly 6,504 K (6,231 °C), an estimate computed from the catalog's color index.

How far away is it?

It lies 44.0 light-years away (13.48 parsecs, from its measured parallax), within the Sun's wider neighborhood; its light is only 44.0 years old when it reaches your eye.

How powerful is it?

Its computed luminosity is about 8.5 times the Sun's output (derived from its brightness and distance).

Can you see it?

At apparent magnitude 3.17, it is an easy naked-eye star under any reasonable sky. It favors northern observers.

Not alone

The catalog records this star as a member of a multiple-star system: two or more suns bound in orbit around each other, a configuration roughly half of Sun-like stars share.

Everything above is computed from the catalog’s measured values for this star. Where a value is missing, the statement is omitted rather than guessed.

Companions in this system

hyg-118634 magnitude 13.80

About this record

Data: the HYG stellar database v4.1 (Hipparcos + Yale + Gliese, CC BY-SA, © David Nash / astronexus). Want the full stories? Our deep star guides cover Sirius, Betelgeuse, Proxima Centauri, Vega and three dozen more. You can also browse the catalog or learn how stars live and die.