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TOI 4791
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Star TOI 4791

Yellow-White star TOI 4791 is located 1051 light years away from the Sun. It is a single star, that has 124 % of solar mass. There is at least one exoplanet in this system.
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Sun distance
1051 light years
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TOI 4791

Yellow-White star

Location +

Ascension iconRight ascension: 7h 17m 33.211s
Declination iconDeclination: -19° 49' 44.180'' (equatorial region)
Parallax iconParallax: 3.104
Distance iconSun distance: 1,050.760 ly | 322.2 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: 124.2 % M Sun
| 1301 M Jupiter
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Star mass
Mass of the star TOI 4791 is 1.242 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: 141 % R Sun
| 14 R Jupiter
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Star size
Radius of the star TOI 4791 is 1.409 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: 6058 K | 1.05 T Sun
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Star temperature
Surface temperature of TOI 4791 is 6058 K, which is 105 % 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: 3.3 billions years | 0.72 Sun
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Star age
Star TOI 4791 is 3.3 billion years old, which is about 0.72 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

Photometry

Magnitude iconApparent magnitude (V): 11.6
Magnitude iconAbsolute magnitude (V): 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 4791 system structure

 TOI 4791
TOI 4791 b 0.06 AU 734.4 M⊕ 12.4 R⊕ 4.3 days

More about TOI 4791

Star TOI 4791 is is approximately 41 % bigger than the Sun and temperature on its surface is around 6058 K (5785 °C), which is about 105 % of Sun's temperature.
       TOI 4791 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
TIC 100389539, 2MASS 07173322-1949443, TYC 5973-02018-1, WISE J071733.21-194944.2
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Frequently Asked Questions

How far is the TOI 4791 system from the Sun?

The TOI 4791 system is 1051 light years or 322.2 parsecs from the Sun.

What galaxy is the TOI 4791 star in?

The TOI 4791 is in the Milky Way galaxy just like the Sun.

How many stars are in the TOI 4791 system?

The TOI 4791 is a single star, there are no other known stars in the system.

What type of star is the TOI 4791?

The star TOI 4791 is a Yellow-White star star.

What temperature is star TOI 4791?

The star TOI 4791 has an effective temperature of 6058 K. Find out more about the temperature of stars in Stellar guide

stellar brief logoStellar Brief

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24. 10. 2026
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A planet’s helium atmosphere streams ahead of its orbit, while infrared observations reveal the hidden rhythms of its star. New work also shows how neutron-star tilt can reshape X-ray light, traces the past of massive blue supergiants, and maps cloudy and clear zones on the hot Jupiter WASP-43 b.
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