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TOI 1338
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Star TOI 1338

Binary star TOI 1338 is located 1318 light years away from the Sun. It consists of a yellow-white star and a red dwarf. There are multiple known exoplanets in this system.
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Sun distance
1318 light years
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TOI 1338 A

Yellow-White star
Spectral class: F9V

Location +

Ascension iconRight ascension: 6h 8m 31.947s
Declination iconDeclination: -59° 32' 27.529'' (southern hemisphere)
Parallax iconParallax: 2.475
Distance iconSun distance: 1,317.684 ly | 404.0 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: 112.7 % M Sun
| 1181 M Jupiter
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Star mass
Mass of the star TOI 1338 A is 1.127 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: 132 % R Sun
| 13.1 R Jupiter
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Star size
Radius of the star TOI 1338 A is 1.32 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: 6031 K | 1.04 T Sun
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Star temperature
Surface temperature of TOI 1338 A is 6031 K, which is 104 % 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): 11.7
Magnitude iconAbsolute magnitude (V): 3.7
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 1338 B

Red dwarf

Location +

Distance iconDistance from the primary: 0.1321 AU

Basic characteristic

icon weight
Mass: 31.3 % M Sun
| 328 M Jupiter
+
Star mass
Mass of the star TOI 1338 B is 1.127 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: 31 % R Sun
| 3.1 R Jupiter
+
Star size
Radius of the star TOI 1338 B is 0.309 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: 3300 K
 (estimate)
+
Star temperature
Surface temperature of TOI 1338 B is estimated to be 3341 K, which is 57 % 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 1338 system structure

 TOI 1338 A
TOI 1338 A b 0.46 AU 21.8 M⊕ 6.7 R⊕ 95.2 days
TOI 1338 A c 0.79 AU 65.2 M⊕ 215.5 days
TOI 1338 B 0.1321 AU

More about TOI 1338

       TOI 1338 can be found in southern celestial hemisphere, however it is too dim to be seen with the naked eye or even a small telescope.
Other designations of this star
BEBOP-1, EBLM J0608-59
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External sources
icon study
icon study
icon study
icon study
icon study
icon study
icon study
The First Circumbinary Planet Discovered with Radial Velocities
Scientific study, Accepted: 25. 01. 2023

News from this star system

Image:
...
8.6.2024
Read article >

Frequently Asked Questions

How far is the TOI 1338 system from the Sun?

The TOI 1338 system is 1318 light years or 404.0 parsecs from the Sun.

What galaxy is the TOI 1338 star in?

The TOI 1338 is in the Milky Way galaxy just like the Sun.

How many stars are in the TOI 1338 system?

The TOI 1338 system contains 2 stars.

What type of star is the TOI 1338?

The primary in the TOI 1338 system is a Yellow-White star star.

What temperature is star TOI 1338?

The primary in the TOI 1338 system has a temperature of 6031 K. Find out more about the temperature of stars in Stellar guide
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