Star K2-3

Red dwarf K2-3 is located 145 light years away from the Sun. It is a single star of spectral class M0.0±0.5V, that has 60 % of solar mass. There are multiple known exoplanets in this system.

K2-3

Red dwarf

Spectral class: M0.0±0.5V

Location

Right ascension: 11h 29m 20.388s

Declination: -1° 27' 17.23'' (equatorial region)

Parallax: 22.5

Sun distance: 144.958 ly | 44.4 pc

Basic characteristic

Mass: 60.1 % M Sun

Size: 56 % R Sun

Temperature: 3896 K | 0.67 T Sun

Photometry

Apparent magnitude (V): 12.2

Absolute magnitude (V): 8.9

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

Absolute stellar magnitude in different parts of the electromagnetic spectrum from infrared (K band) to ultraviolet (U band).

System structure

K2-3
	K2-3 b	0.08 AU	6.5 M⊕	2.2 R⊕	10.1 days
	K2-3 c	0.14 AU	2.1 M⊕	1.8 R⊕	24.6 days
	K2-3 d	0.21 AU	2.8 M⊕	1.5 R⊕	44.6 days

More about K2-3

Star K2-3 is a main sequence star that fuses hydrogen atoms into helium. It is approximately 60 % of the size of Sun and temperature on its surface is around 3896 K (3623 °C), which is about 67 % of Sun's temperature.

       K2-3 can be found in southern celestial hemisphere, however it is too dim to be seen with the naked eye or even a small telescope.

Other designations of this star
EPIC 201367065, 2MASS 11292037-0127173

External sources

A nearby M star with three transiting super-Earths discovered by K2

Scientific study, Accepted: 15. 01. 2015

Class of stars Red dwarf

Red dwarfs are small reddish stars, that are by far the most common type of star in solar neighborhood. Their mass is usually between 10 and 50 % of solar mass.

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