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HD 115842

Star HD 115842

Blue supergiant HD 115842 is located 5596 light years away from the Sun. It is a single star of spectral class B0.5 Ia/ab, that has typically about 3300 % of solar mass. For now, there are no known exoplanets in this star system.

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Nearby stars catalogue

Sun distance
5596 light years

HD 115842

Blue supergiant

Spectral class: B0.5 Ia/ab

Location +

Right ascension: 13h 20m 48.340s

Declination: -55° 48' 2.425'' (southern hemisphere)

Parallax: 0.583

Sun distance: 5,596.116 ly | 1,715.8 pc

Basic characteristic

Mass: 4300 % M Sun

(estimate)

Size: 3500 % R Sun

Temperature: 25500 K | 4.41 T Sun

Photometry

Absolute stellar magnitude in different parts of the electromagnetic spectrum from infrared (K band) to ultraviolet (U band).

K
2.1

H
1.6

J
1.2

Grp
0.8

I
0.8

G
0.6

V
0.5

Gbp
0.5

B
0.4

U
0.3

HD 115842 system structure


	HD 115842

More about HD 115842

Star HD 115842 is is much bigger than the Sun and temperature on its surface is around 25500 K (25227 °C), which is about 441 % of Sun's temperature.

       HD 115842 can be found in southern celestial hemisphere, you cannot see it with naked eye, but you can observe this star with basic telescope.

Other designations of this star
ALS 3038, Gaia DR3 6063901120782965248

External sources

Photometric variability of blue supergiants: Constraints on stellar masses and evolutionary stages

Scientific study, Accepted: 20. 10. 2026

Gaia database (Gaia DR3 6063901120782965248)

Archive from the Gaia mission

News from this star system

Evolutionary stages of blue supergiant star HD 74371 revealed by light patterns

Yesterday

Image: Evolutionary stages of blue supergiant star HD 74371 revealed by light patterns

Analysis of light patterns from the blue supergiant HD 74371 reveals it is currently evolving blue-ward after a previous red supergiant phase. This study uses asteroseismology to better understand the life cycles of massive stars....

Read article

Frequently Asked Questions

How far is the HD 115842 system from the Sun?

The HD 115842 system is 5596 light years or 1,715.8 parsecs from the Sun.

What galaxy is the HD 115842 star in?

The HD 115842 is in the Milky Way galaxy just like the Sun.

How many stars are in the HD 115842 system?

The HD 115842 is a single star, there are no other known stars in the system.

What type of star is the HD 115842?

The star HD 115842 is a Blue supergiant star.

What temperature is star HD 115842?

The star HD 115842 has an effective temperature of 25500 K. Find out more about the temperature of stars in Stellar guide

Stellar Brief

24. 10. 2026

A planet’s helium atmosphere streams ahead of its orbit, while infrared observations reveal the hidden rhythms of its star. New work also shows how neutron-star tilt can reshape X-ray light, traces the past of massive blue supergiants, and maps cloudy and clear zones on the hot Jupiter WASP-43 b.

Today's Stellar Brief

About Stellar Catalog

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Data in Stellar Catalog come from trusted scientific sources. Primary source is Gaia space telescope mapping the stars in Milky Way. Other sources include research papers, Simbad catalog and Exoplanet.eu database.

Estimated values

Objects listed in the Stellar Catalog often have values that are estimates. These estimates are determined using their known characteristics, such as spectral type, brightness across different wavelengths, distance from a star, and other factors.

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