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HD 240237
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Star HD 240237

Red giant HD 240237 is located 3125 light years away from the Sun. It is a single star of spectral class K2III, that has 169 % of solar mass. There is at least one exoplanet in this system.
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Sun distance
3125 light years
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HD 240237

Red giant
Spectral class: K2III

Location +

Ascension iconRight ascension: 23h 15m 42.224s
Declination iconDeclination: 58° 2' 35.671'' (northern hemisphere)
Parallax iconParallax: 1.044
Distance iconSun distance: 3,124.997 ly | 958.1 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: 169 % M Sun
| 1770 M Jupiter
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Star mass
Mass of the star HD 240237 is 1.69 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: 7813 % R Sun
| 777.5 R Jupiter
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Star size
Radius of the star HD 240237 is 78.13 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: 3878 K | 0.67 T Sun
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Star temperature
Surface temperature of HD 240237 is 3878 K, which is 67 % 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: 0.270 billions years | 0.06 Sun
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Star age
Star HD 240237 is 0.270 billion years old, which is about 0.06 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: 1244 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
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HD 240237 system structure

 HD 240237
HD 240237 b 1.9 AU 1684.9 M⊕ 745.7 days

More about HD 240237

Star HD 240237 is is much bigger than the Sun and temperature on its surface is around 3878 K (3605 °C), which is about 67 % of Sun's temperature.
       HD 240237 can be found in northern celestial hemisphere.
Other designations of this star
BD+57°2714, Gaia DR2 2010336687886382592, HD 240237, HIC 114840, HIP 114840, SAO 35269, 2MASS J23154222+5802358
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Frequently Asked Questions

How far is the HD 240237 system from the Sun?

The HD 240237 system is 3125 light years or 958.1 parsecs from the Sun.

What galaxy is the HD 240237 star in?

The HD 240237 is in the Milky Way galaxy just like the Sun.

How many stars are in the HD 240237 system?

The HD 240237 is a single star, there are no other known stars in the system.

What type of star is the HD 240237?

The star HD 240237 is a Red giant star.

What temperature is star HD 240237?

The star HD 240237 has an effective temperature of 3878 K. Find out more about the temperature of stars in Stellar guide
Class of stars Red giant
White dwarfs are the hot, extremely dense stellar remnants left behind by stars that originally had masses between about 0.5 and 8 times the mass of the Sun during their main sequence lifetimes. After exhausting their nuclear fuel, these stars shed their outer layers and leave behind a compact core. Although white dwarfs contain between roughly 0.2 and 1.44 solar masses, this mass is packed into a volume comparable to that of an Earth-sized planet, making them some of the densest objects in the Universe.
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