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HAT-P-11
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Star HAT-P-11

Orange star HAT-P-11 is located 124 light years away from the Sun. It is a single star of spectral class K4V, that has 80 % of solar mass. There are multiple known exoplanets in this system.
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Sun distance
124 light years
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HAT-P-11

Orange star
Spectral class: K4V

Location +

Ascension iconRight ascension: 19h 50m 50.000s
Declination iconDeclination: 48° 4' 51.000'' (northern hemisphere)
Parallax iconParallax: 26.392
Distance iconSun distance: 123.581 ly | 37.9 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: 80.2 % M Sun
| 840 M Jupiter
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Star mass
Mass of the star HAT-P-11 is 0.802 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: 68 % R Sun
| 6.8 R Jupiter
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Star size
Radius of the star HAT-P-11 is 0.683 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: 4780 K | 0.83 T Sun
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Star temperature
Surface temperature of HAT-P-11 is 4780 K, which is 83 % 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: 6.5 billions years | 1.41 Sun
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Star age
Star HAT-P-11 is 6.5 billion years old, which is about 1.41 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: 0.26 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

Photometry

Magnitude iconApparent magnitude (V): 9.5
Magnitude iconAbsolute magnitude (V): 6.6
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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HAT-P-11 system structure

 HAT-P-11
HAT-P-11 b 0.05 AU 27.7 M⊕ 4.4 R⊕ 4.9 days
HAT-P-11 c 4.13 AU 731.2 M⊕ 3397 days

More about HAT-P-11

Star HAT-P-11 is a main sequence star that fuses hydrogen atoms into helium. It is approximately 70 % of the size of Sun and temperature on its surface is around 4780 K (4507 °C), which is about 83 % of Sun's temperature.
       HAT-P-11 can be found in northern celestial hemisphere, you cannot see it with naked eye, but you can observe this star with basic telescope. The star is easily observable from Northern America, Europe and Asia.
Other designations of this star
2MASS 19505021+4804508, GSC 03561-02092, BD+47°2936, HIC 97657, HIP 97657, NLTT 48335, KOI-3, KIC 10748390
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External sources
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tess icon
TESS database (TOI 1144.01)
Archive from the TESS mission

Frequently Asked Questions

How far is the HAT-P-11 system from the Sun?

The HAT-P-11 system is 124 light years or 37.9 parsecs from the Sun.

What galaxy is the HAT-P-11 star in?

The HAT-P-11 is in the Milky Way galaxy just like the Sun.

How many stars are in the HAT-P-11 system?

The HAT-P-11 is a single star, there are no other known stars in the system.

What type of star is the HAT-P-11?

The star HAT-P-11 is a Orange star star.

What temperature is star HAT-P-11?

The star HAT-P-11 has an effective temperature of 4780 K. Find out more about the temperature of stars in Stellar guide
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