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Exoplanet List of exoplanets
Parent star
Star Kepler-41
Right ascension (α) 19h 38m 3.17s
Declination (δ) +45° 58′ 53.97″
Apparent magnitude (mV) 14.465
Distance 2510 ly
(770 pc)
Mass (m) 1.12 M
Radius (r) 1.02 R
Temperature (T) 5620 K
Metallicity [Fe/H] +0.29
Physical characteristics
Mass (m) 0.55 MJ
Radius (r) 0.89 RJ
Bond Albedo (Ab) 0.25±0.06[1]
Geometric Albedo (Ag) 0.2
Density (ρ) 1.1 g cm−3
Temperature (T) 1730
Orbital elements
Semi-major axis (a) 0.03 AU
Eccentricity (e) ~0
Orbital period (P) 1.85555800 d
Inclination (i) 88.3°
Discovery information
Discovery date July 29, 2011
Discovery method Transit
Other detection methods Radial velocity,
Reflection/emission modulations,
Ellipsoidal light variations[2]
Discovery status Confirmed

Kepler-41b, formerly known as KOI-196b, is a planet in the orbit of star Kepler-41. It is a hot Jupiter with about the density of water. It reflects about a third of the starlight it receives.[3]


  1. ^ Shporer, Avi; Hu, Renyu (2015). "Studying Atmosphere-dominated Hot Jupiter Kepler Phase Curves: Evidence that Inhomogeneous Atmospheric Reflection Is Common". The Astronomical Journal. 150 (4). 112. arXiv:1504.00498Freely accessible. Bibcode:2015AJ....150..112S. doi:10.1088/0004-6256/150/4/112. 
  2. ^ Quintana, Elisa V.; Rowe, Jason F.; Barclay, Thomas; Howell, Steve B.; Ciardi, David R.; Demory, Brice-Olivier; Caldwell, Douglas A.; Borucki, William J.; Christiansen, Jessie L.; Jenkins, Jon M.; Klaus, Todd C.; Fulton, Benjamin J.; Morris, Robert L.; Sanderfer, Dwight T.; Shporer, Avi; Smith, Jeffrey C.; Still, Martin; Thompson, Susan E. (2013). "Confirmation of Hot Jupiter Kepler-41b via Phase Curve Analysis". The Astrophysical Journal. 767 (2): 137. arXiv:1303.0858Freely accessible. Bibcode:2013ApJ...767..137Q. doi:10.1088/0004-637X/767/2/137. 
  3. ^ Santerne, A.; et al. (2011). "SOPHIE velocimetry of Kepler transit candidates IV. KOI-196b: a non-inflated hot Jupiter with a high albedo". Astronomy and Astrophysics. 536. A70. arXiv:1108.0550Freely accessible. Bibcode:2011A&A...536A..70S. doi:10.1051/0004-6361/201117807.