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Gliese 228
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Star Gliese 228

Binary star Gliese 228 is located 36 light years away from the Sun. It consists of 2 red dwarf stars. For now, there are no known exoplanets in this star system.
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Sun distance
36 light years
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Gliese 228 A

Red dwarf
Spectral class: M2.5V

Location +

Ascension iconRight ascension: 6h 10m 54.813s
Declination iconDeclination: 10° 19' 4.995'' (equatorial region)
Parallax iconParallax: 91.650
Distance iconSun distance: 35.587 ly | 10.9 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: 40 % M Sun
| 429.5 M Jupiter
 (estimate)
+
Star mass
The mass of the star Gliese 228 A is unknown. Based on its other characteristics, it is estimated to be about 40 % of the Sun's mass.

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: 40 % R Sun
| 4.3 R Jupiter
(estimate)
+
Star size
Radius of the star Gliese 228 A is not known. Its estimated value based on other similar stars is about 40 % 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: 3647 K | 0.63 T Sun
+
Star temperature
Surface temperature of Gliese 228 A is 3647 K, which is 63 % 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

Magnitude iconApparent magnitude (V): 10.4
Magnitude iconAbsolute magnitude (V): 10.2
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

Gliese 228 B

Red dwarf

Basic characteristic

icon weight
Mass: 8 % M Sun
| 83.8 M Jupiter
 (estimate)
+
Star mass
The estimated mass of the star Gliese 228 B is about 8 % of the Sun's mass, or approximately 83.8 Jupiter 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: 10 % R Sun
| 1.1 R Jupiter
(estimate)
+
Star size
Radius of the star Gliese 228 B is not known. Its estimated value based on other similar stars is about 10 % 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: 2400 K
 (estimate)
+
Star temperature
Surface temperature of Gliese 228 B is estimated to be 2400 K, which is 42 % 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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Gliese 228 system structure

 Gliese 228 A
Gliese 228 B

More about Gliese 228

       Gliese 228 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
GJ 228, BD+10 1032, G 102-53, G 105-16, HIC 29316, HIP 29316, LFT 458, LHS 1830, LTT 11799, NLTT 16165, 2MASS J06105481+1019056, Ross 79, TIC 229264027, WISEA J061054.84+101856.0
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Frequently Asked Questions

How far is the Gliese 228 system from the Sun?

The Gliese 228 system is 36 light years or 10.9 parsecs from the Sun.

What galaxy is the Gliese 228 star in?

The Gliese 228 is in the Milky Way galaxy just like the Sun.

How many stars are in the Gliese 228 system?

The Gliese 228 system contains 2 stars.

What type of star is the Gliese 228?

The primary in the Gliese 228 system is a Red dwarf star.

What temperature is star Gliese 228?

The primary in the Gliese 228 system has a temperature of 3647 K. Find out more about the temperature of stars in Stellar guide
Closest stars

 V2689 Orionis
 - 5.7 ly

Gliese 239
 0.44 M☉ 6.5 ly

Gliese 203
 0.22 M☉ 6.7 ly

Ross 46
 0.33 M☉ 7 ly

EGGR 248
 - 7.3 ly
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