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50 Persei
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Star 50 Persei

Binary star 50 Persei is located 69 light years away from the Sun. It consists of a yellow-white star and a red dwarf. For now, there are no known exoplanets in this star system.
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Sun distance
69 light years
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50 Persei A

Yellow-White star
Spectral class: F8V

Location +

Ascension iconRight ascension: 4h 8m 36.846s
Declination iconDeclination: 38° 2' 19.836'' (northern hemisphere)
Parallax iconParallax: 47.188
Distance iconSun distance: 69.119 ly | 21.2 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: 116 % M Sun
| 1215 M Jupiter
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Star mass
Mass of the star 50 Persei A is 1.16 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: 140 % R Sun
| 13.6 R Jupiter
(estimate)
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Star size
Radius of the star 50 Persei A is not known. Its estimated value based on other similar stars is about 140 % 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 icon
Temperature: 6147 K | 1.06 T Sun
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Star temperature
Surface temperature of 50 Persei A is 6147 K, which is 106 % 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
time icon
Age: 0.6 billions years | 0.13 Sun
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Star age
Star 50 Persei A is 0.6 billion years old, which is about 0.13 of the Sun's age.

The age of a star tells us how long it has been shining since it formed. Knowing a star’s age helps astronomers understand its life stage, how it has changed over time, and what will happen to it in the future... icon More about Star age 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

50 Persei B

Red dwarf

Basic characteristic

temperature iconTemperature: 6200 K
 (estimate)
+
Star temperature
Surface temperature of 50 Persei B is estimated to be 6188 K, which is 107 % 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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50 Persei system structure

 50 Persei A
50 Persei B

More about 50 Persei

       50 Persei 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
50 Per, BD+37° 882, FK5 2297, Gliese 9145, GJ 9145, HD 25998, HIC 19335, HIP 19335, HR 1278, SAO 57006, Gaia EDR3 225668203191521280
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Frequently Asked Questions

How far is the 50 Persei system from the Sun?

The 50 Persei system is 69 light years or 21.2 parsecs from the Sun.

What galaxy is the 50 Persei star in?

The 50 Persei is in the Milky Way galaxy just like the Sun.

How many stars are in the 50 Persei system?

The 50 Persei system contains 2 stars.

What type of star is the 50 Persei?

The primary in the 50 Persei system is a Yellow-White star star.

What temperature is star 50 Persei?

The primary in the 50 Persei system has a temperature of 6147 K. Find out more about the temperature of stars in Stellar guide
Possible companions

 HD 25893
 - 0.3 ly
Closest stars

 G 39-9
 - 5.1 ly

2MASS J04134574+3709087
 - 6.5 ly

UPM J0405+3719
 - 7 ly

Gaia DR3 180116295441149824
 - 7.7 ly

PM J04312+4217
 - 8.3 ly
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exoplanet iconAbout Stellar Catalog

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Working with real data
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.
Estimated values
icon 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.
Fresh and validated
icon Stellar Catalog is continuously updated with new information from research papers. Stellar and planetary data are validated by automatic processes as well as humans.

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