| 31. | See List of periodic comets . talk ) 21 : 18, 30 November 2012 ( UTC)
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| 32. | In October 2012, Vorobjov discovered 276P / Vorobjov, a periodic comet and his first comet discovery.
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| 33. | She discovered or co-discovered several comets, including periodic comets 38P / Stephan-Oterma and 39P / Oterma.
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| 34. | Hickory has become an astronomer, and when she discovers a periodic comet, she names it Iona's comet.
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| 35. | He also co-discovered 117P / Helin Roman Alu and 132P / Helin Roman Alu, two periodic comets.
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| 36. | He discovered periodic comet 106P / Schuster.
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| 37. | His name is associated with the periodic comet 38P / Stephan-Oterma, although J�r�me Coggia saw it first.
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| 38. | She co-discovered periodic comet 134P / Kowal-V�vrov?
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| 39. | However, the periodic comet 61P / Shajn Schaldach was co-discovered by his wife rather than by him.
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| 40. | He specialized in the discovery of comets, including periodic comets 12P / Pons-Brooks and 16P / Brooks.
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