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LkCa 15
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Star LkCa 15

T Tauri star LkCa 15 is located 513 light years away from the Sun. It is a single star of spectral class K5, that has 97 % of solar mass. There is at least one exoplanet in this system.
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Sun distance
513 light years
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LkCa 15

T Tauri star
Spectral class: K5

Location +

Ascension iconRight ascension: 4h 39m 17.806s
Declination iconDeclination: 22° 21' 3.110'' (northern hemisphere)
Parallax iconParallax: 6.362
Distance iconSun distance: 512.673 ly | 157.2 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: 97 % M Sun
| 1016 M Jupiter
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Star mass
Mass of the star LkCa 15 is 0.97 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: 120 % R Sun
| 11.9 R Jupiter
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Star size
Radius of the star LkCa 15 is 1.2 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: 4730 K | 0.82 T Sun
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Star temperature
Surface temperature of LkCa 15 is 4730 K, which is 82 % 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: 0.002 billions years | 0 Sun
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Star age
Star LkCa 15 is 0.002 billion years old, which is about 0 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: 1.22 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 iconAbsolute magnitude (V): -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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LkCa 15 system structure

 LkCa 15
LkCa 15 disc n/a -
LkCa 15 b
unconfirmed
 15.7 AU 1907.4 M⊕ 40000 days

More about LkCa 15

Star LkCa 15 is is approximately 20 % bigger than the Sun and temperature on its surface is around 4730 K (4457 °C), which is about 82 % of Sun's temperature.
       LkCa 15 can be found in northern celestial hemisphere, and it is possible to see it with naked eye. The star is easily observable from Northern America, Europe and Asia.
Other designations of this star
V1079 Tau, GSC 01278-00193, TYC 1278-193-1, 2MASS J04391779+2221034, Gaia DR3 144936836795636864
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External sources
icon study
icon study
gaia icon
Gaia database (Gaia DR3 144936836795636864)
Archive from the Gaia mission

Frequently Asked Questions

How far is the LkCa 15 system from the Sun?

The LkCa 15 system is 513 light years or 157.2 parsecs from the Sun.

What galaxy is the LkCa 15 star in?

The LkCa 15 is in the Milky Way galaxy just like the Sun.

How many stars are in the LkCa 15 system?

The LkCa 15 is a single star, there are no other known stars in the system.

What type of star is the LkCa 15?

The star LkCa 15 is a T Tauri star star.

What temperature is star LkCa 15?

The star LkCa 15 has an effective temperature of 4730 K. Find out more about the temperature of stars in Stellar guide
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