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Kepler-47
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Star Kepler-47

Binary star Kepler-47 is located 3442 light years away from the Sun. It consists of a yellow star and a red dwarf. There are multiple known exoplanets in this system.
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Sun distance
3442 light years
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Kepler-47 A

Yellow star
Spectral class: G6V

Location +

Ascension iconRight ascension: 19h 41m 11.500s
Declination iconDeclination: 46° 55' 13.705'' (northern hemisphere)
Parallax iconParallax: 0.948
Distance iconSun distance: 3,441.916 ly | 1,055.3 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: 104.3 % M Sun
| 1093 M Jupiter
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Star mass
Mass of the star Kepler-47 A is 1.043 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: 96 % R Sun
| 9.6 R Jupiter
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Star size
Radius of the star Kepler-47 A is 0.964 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: 5636 K | 0.98 T Sun
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Star temperature
Surface temperature of Kepler-47 A is 5636 K, which is 98 % 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: 4.5 billions years | 0.98 Sun
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Star age
Star Kepler-47 A is 4.5 billion years old, which is about 0.98 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: 0.84 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

Kepler-47 B

Red dwarf
Spectral class: M4V

Basic characteristic

icon weight
Mass: 36.2 % M Sun
| 379 M Jupiter
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Star mass
Mass of the star Kepler-47 B is 1.043 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: 35 % R Sun
| 3.5 R Jupiter
+
Star size
Radius of the star Kepler-47 B is 0.3506 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: 3357 K | 0.58 T Sun
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Star temperature
Surface temperature of Kepler-47 B is 3357 K, which is 58 % 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: 4.5 billions years | 0.98 Sun
+
Star age
Star Kepler-47 B is 4.5 billion years old, which is about 0.98 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: 0.014 L Sun
+
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
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Kepler-47 system structure

 Kepler-47 A
Kepler-47 A b 0.3 AU 8.4 M⊕ 3 R⊕ 49.5 days
Kepler-47 A d 0.7 AU 25 M⊕ 7 R⊕ 187.4 days
Kepler-47 A c 0.99 AU 23.2 M⊕ 4.6 R⊕ 303.2 days
Kepler-47 B

More about Kepler-47

       Kepler-47 can be found in northern celestial hemisphere.
Other designations of this star
2MASS J19411149+4655136, KIC 10020423, KOI-3154, KOI-7273, TIC 271548206, Gaia DR2 2080506523540902912
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Frequently Asked Questions

How far is the Kepler-47 system from the Sun?

The Kepler-47 system is 3442 light years or 1,055.3 parsecs from the Sun.

What galaxy is the Kepler-47 star in?

The Kepler-47 is in the Milky Way galaxy just like the Sun.

How many stars are in the Kepler-47 system?

The Kepler-47 system contains 2 stars.

What type of star is the Kepler-47?

The primary in the Kepler-47 system is a Yellow star star.

What temperature is star Kepler-47?

The primary in the Kepler-47 system has a temperature of 5636 K. Find out more about the temperature of stars in Stellar guide

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A planet’s helium atmosphere streams ahead of its orbit, while infrared observations reveal the hidden rhythms of its star. New work also shows how neutron-star tilt can reshape X-ray light, traces the past of massive blue supergiants, and maps cloudy and clear zones on the hot Jupiter WASP-43 b.
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