Kepler-33

Planetary system · 3943.8 light-years away

Kepler-33 is 3,944 light-years from the Sun. The NASA Exoplanet Archive lists 5 planets around this 5,904 K star; the first was found in 2011 by transit (Kepler).

Fly there in 3D

Worth knowing

Kepler-33 b goes round its star every 5.67 days, 16 times as often as Mercury goes round the Sun.

The star

Surface temperature5,904 K
Mass1.291 solar masses
Radius1.82 solar radii
Luminosity3.597 times the Sun
Apparent magnitude14.099
Ageabout 4.27 billion years
Distance from the Sun3943.8 light-years (1209.2 parsecs)
Position (J2000)RA 289.0775°, Dec 46.0052°
ConstellationCygnus

Planets (5)

PlanetYearOrbitRadiusMassFound
Kepler-33 b5.67 days0.0677 AU1.74 R⊕3.68 M⊕ estimatedTransit, 2011
Kepler-33 c13.2 days0.119 AU3.2 R⊕0.39 M⊕Transit, 2011
Kepler-33 d21.8 days0.166 AU5.35 R⊕3.91 M⊕Transit, 2011
Kepler-33 e31.8 days0.214 AU4.02 R⊕5.57 M⊕Transit, 2011
Kepler-33 f41.0 days0.254 AU4.46 R⊕9.6 M⊕Transit, 2011

Values are the NASA Exoplanet Archive’s composite parameters. A radius marked estimated comes from a mass–radius relation; a mass marked minimum is M sin i. Planet sizes and colours in the 3D view are renderings: none of these worlds has been photographed as more than a point of light.

Sources

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