| 41. | The lunar crater Virtanen is also named after him.
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| 42. | He is the eponym of the lunar crater Goclenius.
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| 43. | The lunar crater Rheita is named after him.
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| 44. | One of the biggest lunar craters, Apollo missions.
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| 45. | In other aspects, Martian craters resemble lunar craters.
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| 46. | The lunar crater Neison is named after him.
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| 47. | The lunar crater Biela is named after him.
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| 48. | The lunar crater Cichus is named after him.
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| 49. | The lunar crater Harkhebi is named after him.
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| 50. | The lunar crater Silberschlag is named after him.
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