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HD 188101

Star HD 188101

Blue-white star HD 188101 is located 1394 light years away from the Sun. It is a single star of spectral class B9, that has 413 % of solar mass. For now, there are no known exoplanets in this star system.

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Nearby stars catalogue

Sun distance
1394 light years

HD 188101

Blue-white star

Spectral class: B9

Location +

Right ascension: 19h 51m 51.008s

Declination: 41° 20' 55.685'' (northern hemisphere)

Parallax: 2.339

Sun distance: 1,394.377 ly | 427.5 pc

Basic characteristic

Mass: 413 % M Sun

Size: 310 % R Sun

Temperature: 14200 K | 2.46 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 188101 system structure


	HD 188101

More about HD 188101

Star HD 188101 is a main sequence star that fuses hydrogen atoms into helium. It is is approximately 3 times bigger than the Sun and temperature on its surface is around 14200 K (13927 °C), which is about 246 % of Sun's temperature.

       HD 188101 can be found in northern celestial hemisphere, you cannot see it with naked eye, but you can observe this star with basic telescope. The star is easily observable from Northern America, Europe and Asia.

Other designations of this star
Gaia DR3 2073891827238591744

External sources

HD 188101: A Spotted B Star with Abundance Anomalies

Scientific study, Accepted: 05. 03. 2026

Gaia database (Gaia DR3 2073891827238591744)

Archive from the Gaia mission

News from this star system

Massive main-sequence star HD 188101 has unusual amounts of silicon, titanium, and strontium

6. 3. 2026

Image: Massive main-sequence star HD 188101 has unusual amounts of silicon, titanium, and strontium

New observations show that the massive main-sequence star HD 188101 is part of rare group of stars with unusual abundances of silicon, titanium, and strontium....

Read article

Frequently Asked Questions

How far is the HD 188101 system from the Sun?

The HD 188101 system is 1394 light years or 427.5 parsecs from the Sun.

What galaxy is the HD 188101 star in?

The HD 188101 is in the Milky Way galaxy just like the Sun.

How many stars are in the HD 188101 system?

The HD 188101 is a single star, there are no other known stars in the system.

What type of star is the HD 188101?

The star HD 188101 is a Blue-white star star.

What temperature is star HD 188101?

The star HD 188101 has an effective temperature of 14200 K. Find out more about the temperature of stars in Stellar guide

About Stellar Catalog

Working with real data

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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Stellar Catalog is continuously updated with new information from research papers. Stellar and planetary data are validated by automatic processes as well as humans.