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HIP 31711 The Sun
Surface temperature
5,880 K
Radius
1.13 × the Sun
Luminosity
1.4 × the Sun
Spectral type
G1/G2V
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

HIP 31711

HIP 31711 · HD 48189

A real star from the HYG catalog in the constellation Pictor.

69.5 light-years away Apparent magnitude 6.15

G-type: a sun like ours

Its spectral type is G1/G2V: the Sun's own class: roughly 5,000–6,000 °C surfaces and ~10-billion-year lifetimes. From its measured color, its surface temperature is roughly 5,875 K (5,602 °C), an estimate computed from the catalog's color index.

How far away is it?

It lies 69.5 light-years away (21.29 parsecs, from its measured parallax), within the Sun's wider neighborhood; its light is only 69.5 years old when it reaches your eye.

How powerful is it?

Its computed luminosity is about 1.37 of the Sun's output, a near-solar wattage (derived from its brightness and distance).

Can you see it?

At apparent magnitude 6.15, it is a naked-eye star under dark skies, washed out by city lights. It favors southern observers.

It varies

This is a catalogued variable star (AK): its brightness measurably changes over time, whether by pulsation, eclipses in a double system, or surface activity.

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.

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.