WASP-47
Sign in to saveWASP-47 is a star similar in size and brightness to the Sun about 881 light-years away in the constellation Aquarius. It lies within the Kepler K2 campaign field 3. It was first noticed to have a hot Jupiter exoplanet orbiting every 4 days in 2012 by the Wide Angle Search for Planets (WASP) team. While it was thought to be a typical hot Jupiter system, three more planets were found in 2015: an outer gas giant within the habitable zone, a hot Neptune exterior to the hot Jupiter's orbit and a super-Earth interior to the hot Jupiter's orbit. WASP-47 is the only planetary system known to have both
In the Vinony graph
Vinony's link graph records 322 inbound references to WASP-47, and connects out to list of stars in Aquarius, year and Kepler Space Telescope.
It sits within the topics Aquarius (constellation), G-type subgiants and Planetary systems with four confirmed planets.
Vinony links it to 8 Wikipedia language editions.
Astronomical data · SIMBAD
- Object type
- *
- Distance
- 881 light-years
- Redshift
- z = -0.00008996752919143702
- Coordinates
- RA 331.2030° · Dec -12.0189°
via SIMBAD · CDS Strasbourg
Wikidata facts
- Constellation
- Aquarius
- Distance from Earth
- 266.69
- Radius
- 1.14
- Mass
- 1.04
Show 16 more facts
- luminosity
- 1.0576807
- effective temperature
- 5552
- parallax
- 3.701
- radial velocity
- -27.362
- apparent magnitude
- 11.781729
- epoch
- J2000.0
- spectral class
- G9V
- metallicity
- 0.449
- catalog code
- K2-23
- stellar rotational velocity
- 3.0
- surface gravity
- 23750
- right ascension component of proper motion
- 15.074
- declination component of proper motion
- -41.467
- age estimated by a dating method
- 6.5
- right ascension
- 331.20302564553
- declination
- -12.01888853991
Sources (1)
via Wikidata · CC0
~6 min read
Encyclopedic overview
5 sectionsContents
- Nomenclature and history
- Stellar characteristics
- Planetary system
- See also
- References
WASP-47 is a star similar in size and brightness to the Sun about 881 light-years away in the constellation Aquarius. It lies within the Kepler K2 campaign field 3. It was first noticed to have a hot Jupiter exoplanet orbiting every 4 days in 2012 by the Wide Angle Search for Planets (WASP) team. While it was thought to be a typical hot Jupiter system, three more planets were found in 2015: an outer gas giant within the habitable zone, a hot Neptune exterior to the hot Jupiter's orbit and a super-Earth interior to the hot Jupiter's orbit. WASP-47 is the only planetary system known to have both planets near the hot Jupiter and another planet much further out.
==Nomenclature and history== Prior to the discovery of its planets, WASP-47 was given the 2MASS designation of 2MASS J22044873-1201079. It was also observed by the Wide-field Infrared Survey Explorer and given the designation WISE J220448.74-120108.4. When observed by NASA's K2 mission, it was given the Ecliptic Plane Input Catalog designation of EPIC 206103150, and later named K2-23 after the discovery of planets d and e.
Excerpted from Wikipedia’s “WASP-47” article, available under the CC BY-SA 4.0 licence.