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TOI-7154
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Star TOI-7154

Binary star TOI-7154 is located 975 light years away from the Sun. It consists of a yellow star and a brown dwarf. For now, there are no known exoplanets in this star system.
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Sun distance
975 light years
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TOI-7154 A

Yellow star

Location +

Ascension iconRight ascension: 17h 38m 16.878s
Declination iconDeclination: 15° 12' 48.736'' (equatorial region)
Parallax iconParallax: 3.346
Distance iconSun distance: 974.828 ly | 298.9 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: 93.9 % M Sun
| 984 M Jupiter
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Star mass
Mass of the star TOI-7154 A is 0.939 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: 95 % R Sun
| 9.4 R Jupiter
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Star size
Radius of the star TOI-7154 A is 0.949 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: 5589 K | 0.97 T Sun
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Star temperature
Surface temperature of TOI-7154 A is 5589 K, which is 97 % 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: 7.2 billions years | 1.57 Sun
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Star age
Star TOI-7154 A is 7.2 billion years old, which is about 1.57 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: 0.782 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

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

TOI-7154 B

Brown dwarf

Location +

Distance iconDistance from the primary: 0.084 AU

Basic characteristic

icon weight
Mass: 6.8 % M Sun
| 71 M Jupiter
+
Star mass
Mass of the star TOI-7154 B is 0.939 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: 8.5 % R Sun
| 0.8 R Jupiter
+
Star size
Radius of the star TOI-7154 B is 0.085 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: 902 K | 0.16 T Sun
+
Star temperature
Surface temperature of TOI-7154 B is 902 K, which is 16 % 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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TOI-7154 system structure

 TOI-7154 A
TOI-7154 B 0.084 AU

More about TOI-7154

       TOI-7154 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 377622130, 2MASS J17381688 1512485 , Gaia DR3 4548696887058100352
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External sources
icon study
TOI-7154b: A Close-in Massive Brown Dwarf in an Eccentric Orbit
Scientific study, Accepted: 22. 05. 2026

Frequently Asked Questions

How far is the TOI-7154 system from the Sun?

The TOI-7154 system is 975 light years or 298.9 parsecs from the Sun.

What galaxy is the TOI-7154 star in?

The TOI-7154 is in the Milky Way galaxy just like the Sun.

How many stars are in the TOI-7154 system?

The TOI-7154 system contains 2 stars.

What type of star is the TOI-7154?

The primary in the TOI-7154 system is a Yellow star star.

What temperature is star TOI-7154?

The primary in the TOI-7154 system has a temperature of 5589 K. Find out more about the temperature of stars in Stellar guide
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