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TOI 139
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Star TOI 139

Orange star TOI 139 is located 138 light years away from the Sun. It is a single star, that has 69 % of solar mass. There is at least one exoplanet in this system.
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Sun distance
138 light years
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TOI 139

Orange star

Location +

Ascension iconRight ascension: 22h 25m 36.586s
Declination iconDeclination: -34° 54' 34.983'' (southern hemisphere)
Parallax iconParallax: 23.571
Distance iconSun distance: 138.369 ly | 42.4 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: 69 % M Sun
| 723 M Jupiter
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Star mass
Mass of the star TOI 139 is 0.69 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: 70 % R Sun
| 7 R Jupiter
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Star size
Radius of the star TOI 139 is 0.7 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: 4570 K | 0.79 T Sun
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Star temperature
Surface temperature of TOI 139 is 4570 K, which is 79 % 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): 10.6
Magnitude iconAbsolute magnitude (V): 7.4
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 139 system structure

 TOI 139
TOI 139 b n/a 6.6 M⊕ 2.5 R⊕ 11.1 days

More about TOI 139

Star TOI 139 is approximately 70 % of the size of Sun and temperature on its surface is around 4570 K (4297 °C), which is about 79 % of Sun's temperature.
       TOI 139 can be found in southern celestial hemisphere, you cannot see it with naked eye, but you can observe this star with basic telescope. The star is also observable from Northern America, Europe and Asia.
Other designations of this star
Gaia DR3 6598814657249555328 , Gaia DR3 6598814657249555328
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External sources
icon study
VaTEST II: Statistical Validation of 16 Exoplanets of TESS
Scientific study, Accepted: 24. 01. 2023
gaia icon
Gaia database (Gaia DR3 6598814657249555328)
Archive from the Gaia mission
tess icon
TESS database (TOI 139.01)
Archive from the TESS mission

Frequently Asked Questions

How far is the TOI 139 system from the Sun?

The TOI 139 system is 138 light years or 42.4 parsecs from the Sun.

What galaxy is the TOI 139 star in?

The TOI 139 is in the Milky Way galaxy just like the Sun.

How many stars are in the TOI 139 system?

The TOI 139 is a single star, there are no other known stars in the system.

What type of star is the TOI 139?

The star TOI 139 is a Orange star star.

What temperature is star TOI 139?

The star TOI 139 has an effective temperature of 4570 K. Find out more about the temperature of stars in Stellar guide
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exoplanet iconAbout Stellar Catalog

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icon Data in Stellar Catalog come from trusted scientific sources. Primary source is Gaia space telescope mapping the stars in Milky Way. Other sources include research papers, Simbad catalog and Exoplanet.eu database.
Estimated values
icon Objects listed in the Stellar Catalog often have values that are estimates. These estimates are determined using their known characteristics, such as spectral type, brightness across different wavelengths, distance from a star, and other factors.
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