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Perihelion
The point in the orbit of a planet, asteroid, or comet
at which it is closest to the sun.
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BSL Sign Languages
of perihelion
(BSL Version)
BSL Explanation
of perihelion
(BSL Version – Glossary of Astronomy)
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Glossary of Astronomy – Perihelion
- the closest point a satellite comes to Earth is called its perigee.
- the farthest point is the apogee.
- for planets, the point in their orbit closest to the Sun is perihelion.
- the farthest point is called aphelion.
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List of BSL Astronomy – P
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