HAT-P-11b

Database links to HAT-P-11b

Exoplanet HAT-P-11b
schematic size comparison with Neptune (left)
Constellation	swan
Position equinox : J2000.0
Right ascension	19h 50m 50.25s
declination	+ 48 ° 04 ′ 51.1 ″
Orbit data
Central star	HAT-P-11
Period of circulation	4.89 d
Further data
radius	approx. 4 R E
Dimensions	approx. 26 M E
history
discovery	HATNet Project , Dittmann et al.

HAT-P-11b is an exoplanet in the constellation Swan . It is the smallest known exoplanet so far (as of September 2014) with water vapor in its atmosphere and was discovered as part of the HATNet Project . HAT-P-11b is roughly four times the diameter of the Earth, about the size of Neptune and around 124 light-years from Earth.

Web links

Commons : HAT-P-11b  - collection of pictures, videos and audio files

• HAT-P-11 b on exoplanets

Individual evidence

1. ↑ Astronomy: Water discovered on a small exoplanet. In: Spiegel online . September 26, 2014, accessed October 9, 2014 . 
2. ↑ Water vapor absorption in the clear atmosphere of a Neptune-sized exoplanet . In: Nature . September 25, 2014, doi : 10.1038 / nature13785 (English, nature.com ).