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Star BD+42 2315

Red giant BD+42 2315 is located 1982 light years away from the Sun. It is a single star, that has 138 % of solar mass. There is at least one exoplanet in this system.
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Sun distance
1982 light years

BD+42 2315

Location +

Ascension iconRight ascension: 12h 30m 21.307s
Declination iconDeclination: 41° 16' 10.436'' (northern hemisphere)
Parallax iconParallax: 1.645
Distance iconSun distance: 1,982.395 ly | 607.8 pc
Star position
The position of a star tells us where it appears in the sky, similar to how we use coordinates like latitude and longitude on Earth. In astronomy, the three main coordinates are right ascension, declination and distance. .. icon More about Star position in StellarGuide

Basic characteristic

icon weight
Mass: 138 % M Sun
| 1446 M Jupiter
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Star mass
Mass of the star BD+42 2315 is 1.38 solar masses.

The mass of a star is the total amount of matter it contains. It is one of the most important properties of a star, as it determines almost everything about how the star lives, changes, and dies. In astronomy, star mass is usually measured in solar masses (M☉) — where 1 solar mass is equal to the mass of our Sun... icon More about Star mass in StellarGuide
radius icon
Size: 680 % R Sun
| 67.8 R Jupiter
(estimate)
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Star size
Radius of the star BD+42 2315 is not known. Its estimated value based on other similar stars is about 680 % solar radii.

The size of a star refers to its radius — the distance from its center to its surface. Star size is usually measured in solar radii (R☉), where 1 solar radius equals approximately 696,000 kilometers. Depending on their type and life stage, stars can be much smaller or larger than the Sun... icon More about Star size in StellarGuide
temperature iconTemperature: 5000 K
 (estimate)
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Star temperature
Surface temperature of BD+42 2315 is estimated to be 4952 K, which is 87 % of the temperature on the surface of the Sun.

The temperature of a star refers to the temperature at its surface, also called the photosphere. It is measured in kelvins (K), the standard unit for temperature in astronomy. A star’s temperature tells us a lot about its physical properties and where it stands in its evolutionary stage... icon More about Star temperature in StellarGuide

Photometry

Absolute stellar magnitude in different parts of the electromagnetic spectrum from infrared (K band) to ultraviolet (U band).
5
10
15
20
25
30
35
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
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BD+42 2315 system structure

BD+42 2315
BD+42 2315 b 0.55 AU 174.8 M⊕ 123.1 days

More about BD+42 2315

       BD+42 2315 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
TYC 3020-01288-1, Gaia DR3 1534760078795225728
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External sources

Frequently Asked Questions

How far is the BD+42 2315 system from the Sun?

The BD+42 2315 system is 1982 light years or 607.8 parsecs from the Sun.

What galaxy is the BD+42 2315 star in?

The BD+42 2315 is in the Milky Way galaxy just like the Sun.

How many stars are in the BD+42 2315 system?

The BD+42 2315 is a single star, there are no other known stars in the system.

What type of star is the BD+42 2315?

The star BD+42 2315 is a Red giant star.

What temperature is the BD+42 2315?

The primary in the BD+42 2315 system has an effective temperature of K ( °C). 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 logoStellar Brief

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24. 10. 2026
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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.
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icon 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.
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