Explore the Universe. Understand Everything In It.
★
Menu
Home Tonight's Sky News
Explore Solar System PlanetsMoons StarsExoplanets GalaxiesBlack Holes NebulaeAsteroids & Comets Constellations Space Exploration Space Industry
Sky Astronomy Calendar Launches
Learn & Tools Start Learning Astrophysics Scale of the Universe Timeline Glossary A–Z People Young Astronomers Top Lists Tools Compare Worlds Ask the Atlas AI Agents API
About About us Methodology Contact

Guided View
New to astronomy? We explain every term as you browse, in plain English. Same pages, with the help built in.

Expert View
You know the sky. Just the content, clean and compact, with no extra explanations. This is the default view.

Interface language
Light mode
HIP 15188 The Sun
Surface temperature
11,990 K
Radius
4.40 × the Sun
Luminosity
361 × the Sun
Spectral type
B3V
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 15188

HIP 15188 · HD 20340

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

2,609.2 light-years away Apparent magnitude 7.97

B-type: blue-white powerhouse

Its spectral type is B3V: hot (10,000–30,000 °C), luminous and fast-burning: the searchlights of young star regions. From its measured color, its surface temperature is roughly 11,993 K (11,720 °C), an estimate computed from the catalog's color index.

How far away is it?

It lies about 2,609 light-years away (800.0 parsecs, from its measured parallax). The light reaching Earth tonight left it around the year -583.

How powerful is it?

Its computed luminosity is about 361.4 times the Sun's output (derived from its brightness and distance).

Can you see it?

At apparent magnitude 7.97, it is invisible to the naked eye, though binoculars will show it. It is visible from both hemispheres.

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.