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HD 20782
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Star HD 20782

Yellow star HD 20782 is located 117 light years away from the Sun. It is a single star of spectral class G1.5V C, that has 100 % of solar mass. There is at least one exoplanet in this system.
Sun distance
117 light years
galaxy map

HD 20782

Yellow star
Spectral class: G1.5V C

Location +

Ascension iconRight ascension: 3h 20m 3.578s
Declination iconDeclination: -28° 51' 14.66'' (southern hemisphere)
Parallax iconParallax: 27.759
Distance iconSun distance: 117.494 ly | 36 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: 100 % M Sun
| 1048 M Jupiter
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Star mass
Mass of the star HD 20782 is 1 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: 110 % R Sun
| 10.8 R Jupiter
(estimate)
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Star size
Radius of the star HD 20782 is not known. Its estimated value based on other similar stars is about 110 % 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: 5578 K | 0.97 T Sun
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Star temperature
Surface temperature of HD 20782 is 5578 K, which is 97 % 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: 7.1 billions years | 1.54 Sun
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Star age
Star HD 20782 is 7.1 billion years old, which is about 1.54 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

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

HD 20782 system structure

 HD 20782
HD 20782 b 1.4 AU 454.6 M⊕ 597.1 days
More about HD 20782
Star HD 20782 is a main sequence star that fuses hydrogen atoms into helium. It is is approximately 9 % bigger than the Sun and temperature on its surface is around 5578 K (5305 °C), which is about 97 % of Sun's temperature.
       HD 20782 can be found in southern celestial hemisphere.
Other designations of this star
CD−29°1231, HIC 15527, HIP 15527, SAO 168469, WDS J03201-2851A, 2MASS J03200355-2851145, LTT 1582, NLTT 10636, TIC 144503325, TYC 6445-136-1, WISEA J032003.86-285115.4, Gaia DR2 5060104351007433472
Class of stars Yellow star
Stars of spectral type G are sometimes also called yellow dwarfs. The Sun is one of them. These stars have a yellow color and a temperature above 5,000°C

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