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Nearby stars catalogue

24 Boötis

Star 24 Boötis

Red giant 24 Boötis is located 308 light years away from the Sun. It is a single star of spectral class G4 III-IV Fe-1, that has 97 % of solar mass. There is at least one exoplanet in this system.

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Nearby stars catalogue

Sun distance
308 light years

24 Boötis

Red giant

Spectral class: G4 III-IV Fe-1

Location +

Right ascension: 14h 28m 37.316s

Declination: 49° 50' 40.712'' (northern hemisphere)

Parallax: 10.589

Sun distance: 308.000 ly | 94.4 pc

Basic characteristic

Mass: 97 % M Sun

Size: 1224 % R Sun

Temperature: 4863 K | 0.84 T Sun

Age: 7.2 billions years | 1.57 Sun

Luminosity: 61.7 L 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

24 Boötis system structure


	24 Boötis
		24 Boötis b	0.19 AU	289.3 M⊕		30.4 days

More about 24 Boötis

Star 24 Boötis is is approximately 12 times bigger than the Sun and temperature on its surface is around 4863 K (4590 °C), which is about 84 % of Sun's temperature.

       24 Boötis can be found in northern celestial hemisphere, and it is possible to see it with naked eye. The star is easily observable from Northern America, Europe and Asia.

Other designations of this star
g Boötis, 24 Boo, BD+50° 2084, GC 19532, HD 127243, HIP 70791, HR 5420, SAO 29165, Gaia DR3 1603662211901473408

External sources

Gaia database (Gaia DR3 1603662211901473408)

Archive from the Gaia mission

Frequently Asked Questions

How far is the 24 Boötis system from the Sun?

The 24 Boötis system is 308 light years or 94.4 parsecs from the Sun.

What galaxy is the 24 Boötis star in?

The 24 Boötis is in the Milky Way galaxy just like the Sun.

How many stars are in the 24 Boötis system?

The 24 Boötis is a single star, there are no other known stars in the system.

What type of star is the 24 Boötis?

The star 24 Boötis is a Red giant star.

What temperature is star 24 Boötis?

The star 24 Boötis has an effective temperature of 4863 K. Find out more about the temperature of stars in Stellar guide

Class of stars Red giant

White dwarfs are the hot, extremely dense stellar remnants left behind by stars that originally had masses between about 0.5 and 8 times the mass of the Sun during their main sequence lifetimes. After exhausting their nuclear fuel, these stars shed their outer layers and leave behind a compact core. Although white dwarfs contain between roughly 0.2 and 1.44 solar masses, this mass is packed into a volume comparable to that of an Earth-sized planet, making them some of the densest objects in the Universe.

Stellar Brief

24. 10. 2026

The changing light of blue supergiant HD 74371 points to a dramatic turn in its life: the star appears to be moving blueward after a red-supergiant phase. Other fresh findings reveal helium escaping from an exoplanet, infrared rhythms on WASP 121, shifting radio and X-ray emissions from young V1298 Tauri, and clouds across WASP-43 b.

Today's Stellar Brief

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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