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TOI 2443
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Star TOI 2443

Orange star TOI 2443 is located 78 light years away from the Sun. It is a single star of spectral class K5V, that has 64 % of solar mass. There are multiple known exoplanets in this system.
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Sun distance
78 light years
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TOI 2443

Orange star, High proper motion star
Spectral class: K5V

Location +

Ascension iconRight ascension: 2h 40m 43.183s
Declination iconDeclination: 1° 11' 58.948'' (equatorial region)
Parallax iconParallax: 41.822
Distance iconSun distance: 77.986 ly | 23.9 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: 64.2 % M Sun
| 673 M Jupiter
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Star mass
Mass of the star TOI 2443 is 0.642 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: 63 % R Sun
| 6.3 R Jupiter
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Star size
Radius of the star TOI 2443 is 0.631 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: 4375 K | 0.76 T Sun
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Star temperature
Surface temperature of TOI 2443 is 4375 K, which is 76 % 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: 7.5 billions years | 1.63 Sun
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Star age
Star TOI 2443 is 7.5 billion years old, which is about 1.63 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: 0.1365 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): 9.5
Magnitude iconAbsolute magnitude (V): 7.6
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 2443 system structure

 TOI 2443
TOI 2443 b n/a 4.8 M⊕ 2.4 R⊕ 15.7 days
TOI 2443 c 0.35 AU 9.3 M⊕ 96.6 days

More about TOI 2443

Nearby star TOI 2443 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 4375 K (4102 °C), which is about 76 % of Sun's temperature.
       TOI 2443 can be found in northern celestial hemisphere, you cannot see it with naked eye, but you can observe this star with basic telescope. The star is easily observable from Northern America, Europe and Asia.
Other designations of this star
BD+00 444, GJ 105.5, Gliese 105.5, Gaia EDR3 2501948402746099456
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External sources
icon study
icon study
icon study
VaTEST II: Statistical Validation of 16 Exoplanets of TESS
Scientific study, Accepted: 24. 01. 2023
simbad icon
Simbad database (BD+00 444)
Astronomical database SIMBAD (the Set of Identifications, Measurements and Bibliography for Astronomical Data)
gaia icon
Gaia database (Gaia EDR3 2501948402746099456)
Archive from the Gaia mission
tess icon
TESS database (TOI 2443.01)
Archive from the TESS mission

Frequently Asked Questions

How far is the TOI 2443 system from the Sun?

The TOI 2443 system is 78 light years or 23.9 parsecs from the Sun.

What galaxy is the TOI 2443 star in?

The TOI 2443 is in the Milky Way galaxy just like the Sun.

How many stars are in the TOI 2443 system?

The TOI 2443 is a single star, there are no other known stars in the system.

What type of star is the TOI 2443?

The star TOI 2443 is a Orange star star.

What temperature is star TOI 2443?

The star TOI 2443 has an effective temperature of 4375 K. Find out more about the temperature of stars in Stellar guide
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