The semi-major axis of the orbit of asteroid Don Quixote is 4.2 AU. Determine how often he is in opposition.
| November 15, 2020 | Education
To find the stellar orbital period of the asteroid T, you need to use Kepler’s III law. T ^ 2 = a ^ 3; T ^ 2 = 4.2 ^ 3 = 74; T = 8.6 (years). 1 / S = 1 – 1 / 8.6; S = 1.13 years = 413 days.
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