jsc2011e016370 · NASA · NASA — public domain
کپلر-۴
Sign in to saveKepler-4 is a sunlike star located about 1626 light-years away in the constellation Draco. It is in the field of view of the Kepler Mission, a NASA operation purposed with finding Earth-like planets. Kepler-4b, a Neptune-sized planet that orbits extremely close to its star, was discovered in its orbit and made public by the Kepler team on January 4, 2010. Kepler-4b was the first discovery by the Kepler satellite, and its confirmation helped to demonstrate the spacecraft's effectiveness.
Astronomical data · SIMBAD
- Object type
- Er*
- Spectral type
- G0
- Distance
- 1,626 light-years
- Redshift
- z = -0.00020136337494658374
- Coordinates
- RA 285.6154° · Dec 50.1358°
View on SIMBAD →
via SIMBAD · CDS Strasbourg
Wikidata facts
- Instance of
- eruptive variable star
- Constellation
- Draco
- Child body
- Kepler-4 b
- Distance from Earth
- 550
- Diameter
- 2130000
- Radius
- 1.49
- Mass
- 1.22
- Variable-star type
- rotating variable star
- Image
- Exoplanet Comparison Kepler-4 b.png
Show 17 more facts
- surface gravity
- 13800
- spectral class
- G3
- catalog code
- TIC 350814622
- Commons category
- Kepler-4
- effective temperature
- 5857
- parallax
- 2.0055
- radial velocity
- -65.2
- apparent magnitude
- 12.195
- metallicity
- 0.14
- epoch
- J2000.0
- stellar rotational velocity
- 2.5
- luminosity
- 2.5117729
- right ascension component of proper motion
- 6.127
- declination component of proper motion
- 4.642
- right ascension
- 285.61540813118
- declination
- 50.135751096
- age estimated by a dating method
- 4.5
Sources (1)
via Wikidata · CC0