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Astronomy and Cosmology
Astronomy and Astrophysics
Calculating semi-major axis and minimum mass of an exoplanet
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[QUOTE="Mauro Montemayor, post: 5492519, member: 596166"] Hello guys, I'm doing my physics coursework on kepler's third law and I'm finding the minimum mass and semi-major axis of a unknown planet. I have the following data: Stellar mass Mstar = 1.31 ± 0.05 Msun Orbital period P = 2.243752 ± 0.00005 days Radial velocity semi-amplitude: V = 993.0 ± 3 m/s Inclination i = 84.32º ± 0.67 We assume eccentricity e=0 Gravitational constant, G=6.67408 × 10-11 m3 kg-1 s-2 Jupiter mass: Mj=1,898 × 10^27 kg From this I found that, semi-major axis = 5.49042 x 10^9 m = 0.037 AU Minimum mass = 1.46082 x 10^28 kg = 7.696 Mjupiter The results are correct. However, I am not able to find the uncertainties of these two values. I would appreciate some help with this matter. Thank you, Mauro [/QUOTE]
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Astronomy and Cosmology
Astronomy and Astrophysics
Calculating semi-major axis and minimum mass of an exoplanet
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