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HD 177830
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Star HD 177830

Binary star HD 177830 is located 205 light years away from the Sun. It consists of a subgiant and a red dwarf. There are multiple known exoplanets in this system.
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Sun distance
205 light years
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HD 177830 A

Subgiant
Spectral class: K0IV

Location +

Ascension iconRight ascension: 19h 5m 20.773s
Declination iconDeclination: 25° 55' 14.372'' (northern hemisphere)
Parallax iconParallax: 15.940
Distance iconSun distance: 204.615 ly | 62.7 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: 148 % M Sun
| 1550 M Jupiter
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Star mass
Mass of the star HD 177830 A is 1.48 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: 299 % R Sun
| 29.8 R Jupiter
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Star size
Radius of the star HD 177830 A is 2.99 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: 4948 K | 0.86 T Sun
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Star temperature
Surface temperature of HD 177830 A is 4948 K, which is 86 % 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: 4.4 billions years | 0.96 Sun
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Star age
Star HD 177830 A is 4.4 billion years old, which is about 0.96 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

HD 177830 B

Red dwarf
Spectral class: M4V

Location +

Distance iconDistance from the primary: 150 AU

Basic characteristic

icon weight
Mass: 30 % M Sun
| 272.4 M Jupiter
 (estimate)
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Star mass
The mass of the star HD 177830 B is unknown. Based on its other characteristics, it is estimated to be about 30 % of the Sun's mass.

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: 30 % R Sun
| 2.9 R Jupiter
(estimate)
+
Star size
Radius of the star HD 177830 B is not known. Its estimated value based on other similar stars is about 30 % 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 iconTemperature: 3300 K
 (estimate)
+
Star temperature
Surface temperature of HD 177830 B is estimated to be 3300 K, which is 57 % 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
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HD 177830 system structure

 HD 177830 A
HD 177830 A c 0.51 AU 47.7 M⊕ 110.9 days
HD 177830 A b 1.22 AU 473.7 M⊕ 406.6 days
HD 177830 B 150 AU

More about HD 177830

       HD 177830 can be found in northern celestial hemisphere.
Other designations of this star
BD+25°3719, GJ 743.2, Gliese 743.2, HIC 93746, HIP 93746, GSC 02126-01196, SAO 86791
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Frequently Asked Questions

How far is the HD 177830 system from the Sun?

The HD 177830 system is 205 light years or 62.7 parsecs from the Sun.

What galaxy is the HD 177830 star in?

The HD 177830 is in the Milky Way galaxy just like the Sun.

How many stars are in the HD 177830 system?

The HD 177830 system contains 2 stars.

What type of star is the HD 177830?

The primary in the HD 177830 system is a Subgiant star.

What temperature is star HD 177830?

The primary in the HD 177830 system has a temperature of 4948 K. Find out more about the temperature of stars in Stellar guide
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