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TOI 519
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Star TOI 519

Red dwarf TOI 519 is located 376 light years away from the Sun. It is a single star of spectral class M3.5, that has 37 % of solar mass. There is at least one exoplanet in this system.
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Sun distance
376 light years
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TOI 519

Red dwarf
Spectral class: M3.5

Location +

Ascension iconRight ascension: 8h 18m 25.625s
Declination iconDeclination: -19° 39' 46.036'' (equatorial region)
Parallax iconParallax: 8.681
Distance iconSun distance: 375.726 ly | 115.2 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: 36.9 % M Sun
| 387 M Jupiter
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Star mass
Mass of the star TOI 519 is 0.369 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: 37 % R Sun
| 3.7 R Jupiter
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Star size
Radius of the star TOI 519 is 0.373 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: 3350 K | 0.58 T Sun
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Star temperature
Surface temperature of TOI 519 is 3350 K, which is 58 % 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): 17.4
Magnitude iconAbsolute magnitude (V): 12
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 519 system structure

 TOI 519
TOI 519 b 0.02 AU 166.9 M⊕ 11.9 R⊕ 1.3 days

More about TOI 519

Star TOI 519 is approximately 40 % of the size of Sun and temperature on its surface is around 3350 K (3077 °C), which is about 58 % of Sun's temperature.
       TOI 519 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
Gaia DR3 5707485527450614656
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External sources
icon study
icon study
icon study
gaia icon
Gaia database (Gaia DR3 5707485527450614656)
Archive from the Gaia mission
tess icon
TESS database (TOI 519.01)
Archive from the TESS mission

Frequently Asked Questions

How far is the TOI 519 system from the Sun?

The TOI 519 system is 376 light years or 115.2 parsecs from the Sun.

What galaxy is the TOI 519 star in?

The TOI 519 is in the Milky Way galaxy just like the Sun.

How many stars are in the TOI 519 system?

The TOI 519 is a single star, there are no other known stars in the system.

What type of star is the TOI 519?

The star TOI 519 is a Red dwarf star.

What temperature is star TOI 519?

The star TOI 519 has an effective temperature of 3350 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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