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Table 1
Observed parameters for the HAT-P-13 system (Winn et al. 2010) and the Earth-Moon system (Yoder 1995).
| Param. | HAT-P-13 | Earth-Moon | ||
|
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| m0 | 1.25 | M⊙ | 1.00 | M⊕ |
| m1 | 0.851 | MJup | 0.0123 | M⊕ |
| m2 | 14.28 | MJup | 1.00 | M⊙ |
| a1 | 0.0427 | au | 60.34 | R⊕ |
| a2 | 1.226 | au | 1.00 | au |
| e1 | 0.0133 | 0.0549 | ||
| e2 | 0.662 | 0.0167 | ||
|
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| I | 30. | deg | 5.145 | deg |
| θ | 0. | deg | 18.295 | deg |
| ε | 30. | deg | 23.44 | deg |
| P rot | 10. | day | 0.997 | day |
| R | 1.559 | R ⊙ | 1.00 | R ⊕ |
| J2 (× 10-6) | 3.88 | 1096. | ||
| C/ (m0R2) | 0.080 | 0.331 | ||
Notes. The initial conditions for the spin of HAT-P-13 are arbitrary.
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