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Gaia-5
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Star Gaia-5

Binary star Gaia-5 is located 135 light years away from the Sun. It consists of a red dwarf and a brown dwarf. For now, there are no known exoplanets in this star system.
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Sun distance
135 light years
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Gaia-5 A

Red dwarf

Location +

Ascension iconRight ascension: 20h 8m 9.802s
Declination iconDeclination: 41° 56' 29.603'' (northern hemisphere)
Parallax iconParallax: 24.209
Distance iconSun distance: 134.724 ly | 41.3 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: 33.9 % M Sun
| 355 M Jupiter
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Star mass
Mass of the star Gaia-5 A is 0.339 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: 35 % R Sun
| 3.4 R Jupiter
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Star size
Radius of the star Gaia-5 A is 0.345 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: 3447 K | 0.6 T Sun
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Star temperature
Surface temperature of Gaia-5 A is 3447 K, which is 60 % 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: 8.2 billions years | 1.78 Sun
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Star age
Star Gaia-5 A is 8.2 billion years old, which is about 1.78 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
luminosity icon
Luminosity: 0.01493 L Sun
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Star luminosity
Luminosity is the total amount of energy a star gives off every second. Think of it as the star’s true brightness — not just how bright it looks from Earth. This is important because some stars may appear dim simply because they are far away, not because they’re actually faint... icon More about Star luminosity in StellarGuide

Photometry

Magnitude iconApparent magnitude (V): 14.6
Magnitude iconAbsolute magnitude (V): 11.5
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

Gaia-5 B

Brown dwarf

Basic characteristic

icon weight
Mass: 2 % M Sun
| 21 M Jupiter
+
Star mass
Mass of the star Gaia-5 B is 0.339 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
temperature iconTemperature: 3400 K
 (estimate)
+
Star temperature
Surface temperature of Gaia-5 B is estimated to be 3433 K, which is 59 % 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 iconAbsolute magnitude (V): -3.1
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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Gaia-5 system structure

 Gaia-5 A
Gaia-5 B

More about Gaia-5

       Gaia-5 can be found in northern celestial hemisphere, however it is too dim to be seen with the naked eye or even a small telescope.
Other designations of this star
TIC 42004825, 2MASS J20080963+4156281, Gaia-ASOI-15, KIC 6565450, Gaia DR3 2074815898041643520
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External sources
icon study

Frequently Asked Questions

How far is the Gaia-5 system from the Sun?

The Gaia-5 system is 135 light years or 41.3 parsecs from the Sun.

What galaxy is the Gaia-5 star in?

The Gaia-5 is in the Milky Way galaxy just like the Sun.

How many stars are in the Gaia-5 system?

The Gaia-5 system contains 2 stars.

What type of star is the Gaia-5?

The primary in the Gaia-5 system is a Red dwarf star.

What temperature is star Gaia-5?

The primary in the Gaia-5 system has a temperature of 3447 K. Find out more about the temperature of stars in Stellar guide
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