Q3814720
Sign in to saveKepler-38 is a binary star system in the constellation Lyra. These stars, called Kepler-38A and Kepler-38B have masses of 95% and 25% solar masses respectively. The brighter star is spectral class G while the secondary has spectral class M. They are separated by 0.147 AU, and complete an eccentric orbit around a common center of mass every 18.8 days.
Wikidata facts
- Constellation
- Lyra
- Child body
- Kepler-38b
- Distance from Earth
- 1215.81
- Radius
- 1.9861767
- Variable-star type
- eclipsing binary star
Show 15 more facts
- orbital eccentricity
- 0.1032
- catalog code
- Gaia DR2 2105448841733970432
- Commons category
- Lyra (constellation)
- effective temperature
- 5435.25
- apparent magnitude
- 13.896232
- spectral class
- G4V / M
- parallax
- 0.8546
- epoch
- J2000.0
- metallicity
- -0.11
- surface gravity
- 8500
- luminosity
- 3.1017628
- right ascension component of proper motion
- -4.575
- declination component of proper motion
- -13.219
- right ascension
- 286.83033865511
- declination
- 42.27920033684001
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Encyclopedic overview
4 sectionsContents
- Variability
- Planetary system
- See also
- References
Kepler-38 is a binary star system in the constellation Lyra. These stars, called Kepler-38A and Kepler-38B have masses of 95% and 25% solar masses respectively. The brighter star is spectral class G while the secondary has spectral class M. They are separated by 0.147 AU, and complete an eccentric orbit around a common center of mass every 18.8 days.
==Variability== Kepler-38 varies in brightness by up to 0.03 magnitudes every 18.8 days. It has been classified as an eclipsing binary.
Excerpted from Wikipedia’s “Q3814720” article, available under the CC BY-SA 4.0 licence.