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TOI 544
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Star TOI 544

Orange star TOI 544 is located 134 light years away from the Sun. It is a single star, that has 85 % of solar mass. There is at least one exoplanet in this system.
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Sun distance
134 light years
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TOI 544

Orange star

Location +

Ascension iconRight ascension: 5h 29m 10.000s
Declination iconDeclination: -0° 20' 33.216'' (equatorial region)
Parallax iconParallax: 24.290
Distance iconSun distance: 134.276 ly | 41.2 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: 85 % M Sun
| 890 M Jupiter
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Star mass
Mass of the star TOI 544 is 0.85 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: 66 % R Sun
| 6.6 R Jupiter
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Star size
Radius of the star TOI 544 is 0.66 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: 4369 K | 0.76 T Sun
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Star temperature
Surface temperature of TOI 544 is 4369 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

Photometry

Magnitude iconApparent magnitude (V): 10.8
Magnitude iconAbsolute magnitude (V): 7.7
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 544 system structure

 TOI 544
TOI 544 b 0.03 AU 5.1 M⊕ 2 R⊕ 1.5 days

More about TOI 544

Star TOI 544 is approximately 70 % of the size of Sun and temperature on its surface is around 4369 K (4096 °C), which is about 76 % of Sun's temperature.
       TOI 544 can be found in southern celestial hemisphere, you cannot see it with naked eye, but you can observe this star with basic telescope. The star is also observable from Northern America, Europe and Asia.
Other designations of this star
HD 290498
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External sources
icon study
tess icon
TESS database (TOI 544.01)
Archive from the TESS mission

Frequently Asked Questions

How far is the TOI 544 system from the Sun?

The TOI 544 system is 134 light years or 41.2 parsecs from the Sun.

What galaxy is the TOI 544 star in?

The TOI 544 is in the Milky Way galaxy just like the Sun.

How many stars are in the TOI 544 system?

The TOI 544 is a single star, there are no other known stars in the system.

What type of star is the TOI 544?

The star TOI 544 is a Orange star star.

What temperature is star TOI 544?

The star TOI 544 has an effective temperature of 4369 K. Find out more about the temperature of stars in Stellar guide

stellar brief logoStellar Brief

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23. 10. 2026
stellar brief logo
A planet’s escaping helium, a star’s hidden infrared rhythms, and a possible distant world in the WISPIT 2 system reveal how much we can learn by watching light across the spectrum. New observations also trace the changing radio and X-ray activity of young V1298 Tauri, while detailed models map cloudy and clear regions across the hot Jupiter WASP-43 b.
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