Banksia
Sign in to saveAlso known as WASP-19b, TOI-655.01, TIC 35516889b
WASP-19b, formally named Banksia, is an exoplanet, notable for possessing one of the shortest orbital periods of any known planetary body: days or approximately 18.932 hours. It has a mass close to that of Jupiter (1.15 Jupiter masses), but by comparison has a much larger radius (1.31 times that of Jupiter, or 0.13 Solar radii); making it nearly the size of a low-mass star. It orbits the star WASP-19 in the Vela constellation. At the time of discovery it was the shortest period hot Jupiter discovered as planets with shorter orbital periods had a rocky, or metallic composition.
Key facts
- Planet.name
- WASP-19b / Banksia
- Planet.image
- WASP-19b.jpg
- Planet.caption
- Artist’s impression of WASP-19b by ESA/Hubble
- Planet.discoverer
- Hebb et al. (SuperWASP)
- Planet.discovered
- December 10, 2009
- Planet.discovery_method
- Transit
- Planet.alt_names
- Banksia
- Planet.apsis
- astron
- Planet.star
- WASP-19
via Wikipedia infobox
Wikidata facts
- Named after
- Banksia
- Constellation
- Vela
- Parent body
- Wattle
- Radius
- 1.41
- Mass
- 1.139
- Orbital period
- 0.78884
- Image
- Exoplanet Comparison WASP-19 b.png
Show 16 more facts
- catalog code
- TOI-655.01
- Commons category
- WASP-19 b
- orbital eccentricity
- 0.0077
- time of discovery or invention
- 2010-01-00
- right ascension
- 148.41698536810750
- declination
- -45.65918221650083
- epoch
- J2000.0
- orbital inclination
- 79.4
- discovery method
- transit method
- temperature
- 2077.0
- semi-major axis of an orbit
- 0.016634
- right ascension component of proper motion
- -35.407
- declination component of proper motion
- 17.288
- argument of periapsis
- 3
- parallax
- 3.6981
- M sin i
- 1.133
Sources (2)
via Wikidata · CC0
~3 min read
Encyclopedic overview
4 sectionsContents
- Nomenclature
- Atmosphere
- References
- External links
WASP-19b, formally named Banksia, is an exoplanet, notable for possessing one of the shortest orbital periods of any known planetary body: days or approximately 18.932 hours. It has a mass close to that of Jupiter (1.15 Jupiter masses), but by comparison has a much larger radius (1.31 times that of Jupiter, or 0.13 Solar radii); making it nearly the size of a low-mass star. It orbits the star WASP-19 in the Vela constellation. At the time of discovery it was the shortest period hot Jupiter discovered as planets with shorter orbital periods had a rocky, or metallic composition.
A study in 2012, utilizing the Rossiter–McLaughlin effect, determined the planetary orbit is well aligned with the equatorial plane of the star, misalignment equal to -15°.
Excerpted from Wikipedia’s “Banksia” article, available under the CC BY-SA 4.0 licence.