Ditsö̀
Sign in to saveAlso known as WASP-17b, CD-27 10695b, WASP-17 b, TOI-1050.01, TOI-1050b, TIC 66818296b
WASP-17b, officially named Ditsö̀, is an exoplanet in the constellation Scorpius that is orbiting the star WASP-17. Its discovery was announced on 11 August 2009. It is the first planet discovered to have a retrograde orbit, meaning it orbits in a direction counter to the rotation of its host star. This discovery challenged traditional planetary formation theory. In terms of diameter, WASP-17b is one of the largest exoplanets discovered and at half Jupiter's mass, this made it the most puffy planet known in 2010. On 3 December 2013, scientists working with the Hubble Space Telescope reported d
Astronomical data · SIMBAD
- Object type
- Pl
- Distance
- 1,315 light-years
- Coordinates
- RA 239.9623° · Dec -28.0618°
via SIMBAD · CDS Strasbourg
Key facts
- Planet.name
- WASP-17b / Ditsö̀
- Planet.image
- WASP-17b.jpg
- Planet.caption
- Artist impression of Ditsö̀
- Planet.discoverer
- David R. Anderson et al
- Planet.discovered
- 11 August 2009
- Planet.discovery_method
- Transit (including secondary eclipse)
- Planet.apsis
- astron
- Planet.eccentricity
- <0.020
- Planet.arg_peri
- −70 or 210
- Planet.star
- WASP-17
via Wikipedia infobox
Wikidata facts
- Radius
- 1.71
- Mass
- 0.453
- Orbital period
- 3.735438
- Image
- Exoplanet Comparison WASP-17 b.png
Show 13 more facts
- catalog code
- TIC 66818296b
- Commons category
- WASP-17 b
- time of discovery or invention
- 2010-01-00
- right ascension
- 239.96228737752210
- declination
- -28.06175262012028
- name
- Ditsö̀
- orbital eccentricity
- 0.11
- semi-major axis of an orbit
- 0.0515
- argument of periapsis
- 277.4
- orbital inclination
- 86.83
- right ascension component of proper motion
- -8.100
- declination component of proper motion
- -9.639
- parallax
- 2.4366
via Wikidata · CC0
~5 min read
Article
6 sectionsContents
- Discovery
- Orbit
- Physical properties
- See also
- References
- External links
WASP-17b, officially named Ditsö̀, is an exoplanet in the constellation Scorpius that is orbiting the star WASP-17. Its discovery was announced on 11 August 2009. It is the first planet discovered to have a retrograde orbit, meaning it orbits in a direction counter to the rotation of its host star. This discovery challenged traditional planetary formation theory. In terms of diameter, WASP-17b is one of the largest exoplanets discovered and at half Jupiter's mass, this made it the most puffy planet known in 2010. On 3 December 2013, scientists working with the Hubble Space Telescope reported detecting water in the exoplanet's atmosphere.
WASP-17b's name was selected in the NameExoWorlds campaign by Costa Rica, during the 100th anniversary of the International Astronomical Union. Ditsö̀ is the name that the god Sibö̀ gave to the first Bribri people in Talamancan mythology.