IGNOU BPHCT 131 2026 - Given that the time period of Halley's comet is , calculate t

Question

Given that the time period of Halley's comet is $75.3\text{ years}$ , calculate the length of its semi-major axis. If the perihelion distance of the orbit is $0.88 \times 10^{11}\text{ m}$ , calculate the aphelion distance.

19 Jan 2026

Answer :

Word Count : 150

For objects revolving around the Sun, Kepler’s third law in convenient astronomical units is (T^{2}=a^{3}), where (T) is the time period in years and (a) is the semi-major axis in astronomical units. The time period of Halley’s comet is

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