Tangra
Sign in to saveWASP-21, also named Tangra, is a G-type star (spectral type G3V) that has reached the end of its main sequence lifetime. It lies approximately 834 light-years away, in the constellation of Pegasus. The star is relatively metal-poor, having 40% of heavy elements compared to the Sun. Kinematically, WASP-21 belongs to the thick disk of the Milky Way. It has an exoplanet named WASP-21b.
In the Vinony graph
Within Vinony's link graph, Tangra is referenced by 155 other articles, and connects out to stellar classification, year and Bulgaria.
It sits within the topics G-type subgiants, Pegasus (constellation) and Planetary systems with one confirmed planet.
Its subject is documented across 6 Wikipedia language editions.
Astronomical data · SIMBAD
- Object type
- *
- Spectral type
- G3V
- Distance
- 834 light-years
- Redshift
- z = -0.0002984786422496333
- Coordinates
- RA 347.4927° · Dec 18.3961°
via SIMBAD · CDS Strasbourg
Wikidata facts
Show 15 more facts
- catalog code
- TIC 436478932
- effective temperature
- 5800
- parallax
- 3.9089
- apparent magnitude
- 11.398335
- radial velocity
- -89.495
- epoch
- J2000.0
- spectral class
- G3V
- metallicity
- -0.34
- surface gravity
- 26000
- name
- Tangra
- luminosity
- 1.3921784
- right ascension component of proper motion
- 17.567
- declination component of proper motion
- 18.639
- right ascension
- 347.4927226845899
- declination
- 18.39607939522
via Wikidata · CC0
~1 min read
Encyclopedic overview
3 sectionsContents
- Naming
- Planetary system
- References
WASP-21, also named Tangra, is a G-type star (spectral type G3V) that has reached the end of its main sequence lifetime. It lies approximately 834 light-years away, in the constellation of Pegasus. The star is relatively metal-poor, having 40% of heavy elements compared to the Sun. Kinematically, WASP-21 belongs to the thick disk of the Milky Way. It has an exoplanet named WASP-21b.
A survey in 2012 failed to find any stellar companions to WASP-21.
Excerpted from Wikipedia’s “Tangra” article, available under the CC BY-SA 4.0 licence.