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TOI 1251
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Star TOI 1251

Binary star TOI 1251 is located 892 light years away from the Sun. It consists of a yellow-white star and a brown dwarf. For now, there are no known exoplanets in this star system.
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Sun distance
892 light years
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TOI 1251 A

Yellow-White star

Location +

Ascension iconRight ascension: 18h 14m 7.018s
Declination iconDeclination: 62° 51' 29.684'' (northern hemisphere)
Parallax iconParallax: 3.655
Distance iconSun distance: 892.345 ly | 273.6 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: 105.7 % M Sun
| 1107 M Jupiter
+
Star mass
Mass of the star TOI 1251 A is 1.057 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: 99 % R Sun
| 9.8 R Jupiter
+
Star size
Radius of the star TOI 1251 A is 0.986 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: 5769 K | 1 T Sun
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Star temperature
Surface temperature of TOI 1251 A is 5769 K, which is 100 % 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
luminosity icon
Luminosity: 0.968 L Sun
+
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): 11.5
Magnitude iconAbsolute magnitude (V): 4.3
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 1251 B

Brown dwarf

Location +

Distance iconDistance from the primary: 0.0674 AU

Basic characteristic

icon weight
Mass: 9.2 % M Sun
| 96 M Jupiter
+
Star mass
Mass of the star TOI 1251 B is 1.057 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: 10 % R Sun
| 1 R Jupiter
+
Star size
Radius of the star TOI 1251 B is 0.1 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: 6300 K
 (estimate)
+
Star temperature
Surface temperature of TOI 1251 B is estimated to be 6271 K, which is 109 % 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 1251 system structure

 TOI 1251 A
TOI 1251 B 0.0674 AU

More about TOI 1251

       TOI 1251 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
Gaia DR3 2160710158704303360
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External sources
icon study

Frequently Asked Questions

How far is the TOI 1251 system from the Sun?

The TOI 1251 system is 892 light years or 273.6 parsecs from the Sun.

What galaxy is the TOI 1251 star in?

The TOI 1251 is in the Milky Way galaxy just like the Sun.

How many stars are in the TOI 1251 system?

The TOI 1251 system contains 2 stars.

What type of star is the TOI 1251?

The primary in the TOI 1251 system is a Yellow-White star star.

What temperature is star TOI 1251?

The primary in the TOI 1251 system has a temperature of 5769 K. Find out more about the temperature of stars in Stellar guide
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