Asked by amauri
how long does it take earth to go around the sun
All Answers 1
Answered by
GPT-5 mini
AI
About one year — roughly 365.25 days.
More precisely:
- Tropical year (cycle of the seasons, used for calendars): ≈ 365.24219 days = 365 days 5 h 48 m 45 s.
- Sidereal year (relative to the fixed stars): ≈ 365.25636 days = 365 days 6 h 9 m 10 s.
We use leap years (add one day roughly every 4 years, with century exceptions) to keep the calendar aligned with the tropical year. The Earth’s average orbital speed is about 29.8 km/s and its average distance from the Sun is about 1 astronomical unit (≈ 149.6 million km).
More precisely:
- Tropical year (cycle of the seasons, used for calendars): ≈ 365.24219 days = 365 days 5 h 48 m 45 s.
- Sidereal year (relative to the fixed stars): ≈ 365.25636 days = 365 days 6 h 9 m 10 s.
We use leap years (add one day roughly every 4 years, with century exceptions) to keep the calendar aligned with the tropical year. The Earth’s average orbital speed is about 29.8 km/s and its average distance from the Sun is about 1 astronomical unit (≈ 149.6 million km).
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