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TOI 1227
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Star TOI 1227

Red dwarf TOI 1227 is located 329 light years away from the Sun. It is a single star of spectral class M4.5V, that has 17 % of solar mass. There is at least one exoplanet in this system.
Sun distance
329 light years
galaxy map

TOI 1227

Red dwarf
Spectral class: M4.5V

Location +

Ascension iconRight ascension: 12h 27m 4.163s
Declination iconDeclination: -72° 27' 6.666'' (southern hemisphere)
Parallax iconParallax: 9.905
Distance iconSun distance: 329.297 ly | 101 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: 17 % M Sun
| 178 M Jupiter
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Star mass
Mass of the star TOI 1227 is 0.17 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: 56 % R Sun
| 5.6 R Jupiter
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Star size
Radius of the star TOI 1227 is 0.56 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: 3072 K | 0.53 T Sun
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Star temperature
Surface temperature of TOI 1227 is 3072 K, which is 53 % 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: 0.011 billions years | 0 Sun
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Star age
Star TOI 1227 is 0.011 billion years old, which is about 0 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): 15
Magnitude iconAbsolute magnitude (V): 10
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 1227 system structure

 TOI 1227
TOI 1227 b 0.09 AU 9.5 R⊕ 27.4 days
More about TOI 1227
Star TOI 1227 is a main sequence star that fuses hydrogen atoms into helium. It is approximately 60 % of the size of Sun and temperature on its surface is around 3072 K (2799 °C), which is about 53 % of Sun's temperature.
       TOI 1227 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 5842480953772012928
External sources
icon study
The Age and High Energy Environment of the Very Young Transiting Exoplanet TOI 1227b
Scientific study, Accepted: 04. 06. 2025
icon study
The 10 pc Neighborhood of Habitable Zone Exoplanetary Systems: Threat Assessment from Stellar Encounters & Supernovae
Scientific study, Accepted: 29. 10. 2024
gaia icon
Gaia database (Gaia DR3 5842480953772012928)
Archive from the Gaia mission
tess icon
TESS database (TOI 1227.01)
Archive from the TESS mission
Class of stars Red dwarf
Red dwarfs are small, relatively cool, reddish stars. They are by far the most common type of star in the solar neighborhood. Their mass typically ranges from about 8% to 50% of the Sun's mass.

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