HAT-P-11b
Super Neptune orbiting HAT-P-11 / From Wikipedia, the free encyclopedia
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HAT-P-11b (or Kepler-3b) is an extrasolar planet orbiting the star HAT-P-11. It was discovered by the HATNet Project team in 2009 using the transit method, and submitted for publication on 2 January 2009.
Quick Facts Discovery, Discovered by ...
Discovery[1] | |
---|---|
Discovered by | Bakos et al. |
Discovery site | Cambridge, Massachusetts |
Discovery date | 2 January 2009 |
Transit (HATNet) | |
Orbital characteristics | |
Apastron | 0.0637+0.0020 −0.0019 AU |
Periastron | 0.0413+0.0018 −0.0019 AU |
0.05254+0.00064 −0.00066 AU | |
Eccentricity | 0.218+0.034 −0.031[2] |
4.887802443+0.000000034 −0.000000030[3] d | |
Inclination | 89.05+0.15 −0.09[3] |
2454957.15+0.17 −0.20[2] | |
19+14 −16[2] | |
Semi-amplitude | 10.42+0.64 −0.66[2] |
Star | HAT-P-11 |
Physical characteristics | |
Mean radius | 4.36±0.06[3] R🜨 |
Mass | 23.4±1.5[2] ME |
Mean density | 1,440 kg/m3 (2,430 lb/cu yd) |
1.20 g | |
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This planet is located approximately 123 light-years (38 pc) distant from Earth.[4]