K2-19
Sign in to saveK2-19 is an early K-type or late G-type main sequence star that is magnetically active, and has a light curve that exhibits variations in brightness of ~1%. It is located approximately 976 light-years away in the constellation Virgo. Three confirmed transiting exoplanets are known to orbit this star.
Astronomical data · SIMBAD
- Object type
- *
- Spectral type
- G7
- Distance
- 976 light-years
- Redshift
- z = 0.00002458064027899276
- Coordinates
- RA 174.9603° · Dec 0.6036°
via SIMBAD · CDS Strasbourg
Wikidata facts
- Constellation
- Virgo
- Distance from Earth
- 295.6637
- Radius
- 0.86
- Mass
- 0.93
Show 16 more facts
- catalog code
- WISEA J113950.46+003612.9
- effective temperature
- 5430
- radial velocity
- -7.12
- parallax
- 3.341
- apparent magnitude
- 12.806
- epoch
- J2000.0
- metallicity
- 0.05
- stellar rotational velocity
- 2.6
- surface gravity
- 40000
- luminosity
- 0.49530944
- right ascension component of proper motion
- -18.673
- declination component of proper motion
- 4.571
- spectral class
- G8
- age estimated by a dating method
- 8.0
- right ascension
- 174.96033472552
- declination
- 0.6035764022
via Wikidata · CC0
~1 min read
Encyclopedic overview
4 sectionsContents
- Planetary system
- Discovery
- Characteristics
- References
K2-19 is an early K-type or late G-type main sequence star that is magnetically active, and has a light curve that exhibits variations in brightness of ~1%. It is located approximately 976 light-years away in the constellation Virgo. Three confirmed transiting exoplanets are known to orbit this star.
==Planetary system== ===Discovery=== The two outer planets were reported as planet candidates during analysis of data from Campaign 1 of the Kepler space telescope's K2 extended mission. Both planets were confirmed by David J. Armstrong and collaborators, who used ground-based telescopes to detect additional transits and measure hour-long transit-timing variations for K2-19b. They were independently validated along with 20 other planets by Benjamin T. Montet and team.
Excerpted from Wikipedia’s “K2-19” article, available under the CC BY-SA 4.0 licence.