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perihermion. In DICTIOUS you will not only get to know all the dictionary meanings for the word
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English
Noun
perihermion
- Periapsis around Mercury.
2012 October, M Kobayashi, H Shibata, K Nogami, M Fujii, T Miyachi, H Ohashi, S Sasaki, T Iwai, M Hattori, H Kimura, T Hirai, S Takechi, H Yano, S Hasegawa, R Srama & E Gru:n, “Mercury dust monitor for the BepiColombo MMO”, in International Workshop of Instrumentation for Planetary Missions:The MMO will be in an elliptic orbit around Mercury with the perihermion of 600 km and the aphermion of 11624 km.