Kepler-438 is a solitary star in the constellation Lyra . It is located at a distance of 470 light years from the Sun [1] .
| Kepler-438 | |||
|---|---|---|---|
| Star | |||
| Observational data ( Age J2000.0 ) | |||
| Type of | Single red dwarf star | ||
| Right ascension | |||
| Declination | |||
| Distance | 473 ± 75 St. years (145 ± 23 pc ) | ||
| Visible magnitude ( V ) | 9.55 | ||
| Constellation | Lyra | ||
| Astrometry | |||
| Absolute magnitude (V) | 11.56 | ||
| Specifications | |||
| Spectral class | M | ||
| physical characteristics | |||
| Weight | 0.544 +0.061 −0.041 M ☉ | ||
| Radius | 0.52 +0.061 −0.038 R ☉ | ||
| Age | 4.4⋅10 9 years | ||
| Temperature | 3,748 ± 112.0 K | ||
| Metallicity | [M / H] = 0.16 ± 0.14 | ||
| |||
| Database Information | |||
| SIMBAD | |||
It is a red dwarf in the spectral class M. It belongs to the class of flare stars. Flashes on it occur once every several hundred days, while they are 10 times more powerful than ever recorded flares on the Sun [2] . A star has a mass equal to 0.54 solar masses and a radius equal to 0.52 of the radius of the sun.
Content
Planet System
Kepler-438 is notable for its planetary system, which includes the exoplanet Kepler-438 b - possibly an Earth-like world within its habitable zone .
See also
- The viability of the red dwarf system
- List of potentially viable exoplanets