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TOI 4184
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Star TOI 4184

Red dwarf TOI 4184 is located 226 light years away from the Sun. It is a single star of spectral class M5.5, that has 24 % of solar mass. There is at least one exoplanet in this system.
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Sun distance
226 light years
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TOI 4184

Red dwarf
Spectral class: M5.5

Location +

Ascension iconRight ascension: 2h 55m 18.851s
Declination iconDeclination: -79° 24' 52.851'' (southern hemisphere)
Parallax iconParallax: 14.451
Distance iconSun distance: 225.698 ly | 69.2 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: 24 % M Sun
| 251 M Jupiter
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Star mass
Mass of the star TOI 4184 is 0.240 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: 24 % R Sun
| 2.4 R Jupiter
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Star size
Radius of the star TOI 4184 is 0.242 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: 3225 K | 0.56 T Sun
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Star temperature
Surface temperature of TOI 4184 is 3225 K, which is 56 % 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: 6.7 billions years | 1.46 Sun
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Star age
Star TOI 4184 is 6.7 billion years old, which is about 1.46 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: 0.00544 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

Magnitude iconApparent magnitude (V): 17.1
Magnitude iconAbsolute magnitude (V): 12.9
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 4184 system structure

 TOI 4184
TOI 4184 b 0.03 AU 6.6 M⊕ 2.4 R⊕ 4.9 days

More about TOI 4184

Star TOI 4184 is approximately 20 % of the size of Sun and temperature on its surface is around 3225 K (2952 °C), which is about 56 % of Sun's temperature.
       TOI 4184 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 394357918, 2MASS J02551841-7924554, Gaia DR3 4620574887039870720
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External sources
icon study
gaia icon
Gaia database (Gaia DR3 4620574887039870720)
Archive from the Gaia mission
tess icon
TESS database (TOI 4184.01)
Archive from the TESS mission

Frequently Asked Questions

How far is the TOI 4184 system from the Sun?

The TOI 4184 system is 226 light years or 69.2 parsecs from the Sun.

What galaxy is the TOI 4184 star in?

The TOI 4184 is in the Milky Way galaxy just like the Sun.

How many stars are in the TOI 4184 system?

The TOI 4184 is a single star, there are no other known stars in the system.

What type of star is the TOI 4184?

The star TOI 4184 is a Red dwarf star.

What temperature is star TOI 4184?

The star TOI 4184 has an effective temperature of 3225 K. Find out more about the temperature of stars in Stellar guide
Class of stars Red dwarf
Red dwarfs are small, cool stars with surface temperatures of about 2,000–3,800 K, much cooler than the Sun. They usually have 8–50% of the Sun’s mass and shine very faintly, sometimes at just a tiny fraction of the Sun’s brightness. Classified mainly as spectral type M, they are the most common stars in the Milky Way, making up roughly 70–75% of its stellar population.

They fuse hydrogen slowly through the proton–proton chain and are fully convective, which allows them to use their fuel very efficiently. As a result, red dwarfs can live for tens of billions to trillions of years—far longer than the Sun. Many exoplanets orbit red dwarfs, including some in close habitable zones, though strong stellar activity can affect planetary environments.
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