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Table 3.

Mean values of the spot parameters on Kepler-63, other stars, and the Sun.

Star Kepler-63(1) Kepler-17(2) Kepler-71(3) CoRoT-2(4) Sun(5)
Mass (M) 0.984 1.16 0.997 0.97 1.0
Radius (R) 0.901 1.05 0.887 0.902 1.0
Teff (K) 5576 5781 5540 5575 5778
Age (Gyr) 0.2 > 1.8 2.5−4.0 0.13−0.5 4.6
Prot (d) 5.405 12.28 19.77 4.54 27.6
Ω (rd/d) 0.000116 0.077 0.005 0.042 0.50
ΔΩ/Ω (%) 0.01 15.0 1.8 3.0 22.1

Planet Kepler-63b Kepler-17b Kepler-71b CoRoT-2b

Radius (Rp/R) 0.0644 0.138 0.1358 0.172
a (a/R) 19.35 2.45 12.186 6.7

Starspots

Radius (Mm) 32 ± 14 80 ± 50 51 ± 26 55 ± 19 12 ± 10
Tspot (K) 4700 ± 300 5100 ± 500 4800 ± 500 4600 ± 700 4800 ± 400

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