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HD 28109
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Star HD 28109

Yellow-White star HD 28109 is located 459 light years away from the Sun. It is a single star of spectral class F8/G0V, that has 126 % of solar mass. There are multiple known exoplanets in this system.
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Sun distance
459 light years
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HD 28109

Yellow-White star
Spectral class: F8/G0V

Location +

Ascension iconRight ascension: 4h 20m 57.000s
Declination iconDeclination: -68° 6' 10.000'' (southern hemisphere)
Parallax iconParallax: 7.100
Distance iconSun distance: 459.375 ly | 140.8 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: 126 % M Sun
| 1320 M Jupiter
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Star mass
Mass of the star HD 28109 is 1.26 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: 145 % R Sun
| 14.4 R Jupiter
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Star size
Radius of the star HD 28109 is 1.446 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: 6120 K | 1.06 T Sun
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Star temperature
Surface temperature of HD 28109 is 6120 K, which is 106 % 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: 1.1 billions years | 0.24 Sun
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Star age
Star HD 28109 is 1.1 billion years old, which is about 0.24 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): 9.4
Magnitude iconAbsolute magnitude (V): 3.6
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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HD 28109 system structure

 HD 28109
HD 28109 b 0.14 AU 6.2 M⊕ 2.7 R⊕ 22.9 days
HD 28109 c 0.31 AU 9.2 M⊕ 4.1 R⊕ 56 days
HD 28109 d 0.41 AU 5.8 M⊕ 3.1 R⊕ 84.3 days

More about HD 28109

Star HD 28109 is a main sequence star that fuses hydrogen atoms into helium. It is is approximately 45 % bigger than the Sun and temperature on its surface is around 6120 K (5847 °C), which is about 106 % of Sun's temperature.
       HD 28109 can be found in southern celestial hemisphere, you cannot see it with naked eye, but you can observe this star with basic telescope.
Other designations of this star
TIC 29781292, TOI-282, 2MASS J04205712-6806095, UCAC4 110-003794, WISE J042057.17-680609.5, Gaia DR2 4668163021600295552, HIP 20295, TYC 9154-01248-1
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External sources
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Frequently Asked Questions

How far is the HD 28109 system from the Sun?

The HD 28109 system is 459 light years or 140.8 parsecs from the Sun.

What galaxy is the HD 28109 star in?

The HD 28109 is in the Milky Way galaxy just like the Sun.

How many stars are in the HD 28109 system?

The HD 28109 is a single star, there are no other known stars in the system.

What type of star is the HD 28109?

The star HD 28109 is a Yellow-White star star.

What temperature is star HD 28109?

The star HD 28109 has an effective temperature of 6120 K. Find out more about the temperature of stars in Stellar guide
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Estimated values
icon Objects listed in the Stellar Catalog often have values that are estimates. These estimates are determined using their known characteristics, such as spectral type, brightness across different wavelengths, distance from a star, and other factors.
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