page_title: Aleksandr Ivanchenkov
hierarchical_section_title: Aleksandr Ivanchenkov
caption_attribution_description: Русский: Космонавты СССР Ковалёнок и Иванченков
context_page_description: Aleksandr Sergeyevich Ivanchenkov is a retired Soviet cosmonaut who flew as Flight Engineer on Soyuz 29 and Soyuz T-6, he spent 147 days, 12 hours and 37 minutes in space.
context_section_description: Aleksandr Sergeyevich Ivanchenkov (Russian: Алекса́ндр Серге́евич Иванче́нков; born 28 September 1940 ) is a retired Soviet cosmonaut who flew as Flight Engineer on Soyuz 29 and Soyuz T-6, he spent 147 days, 12 hours and 37 minutes in space.
caption: Vladimir Kovalyonok and Aleksandr Ivanchenkov on the 1978 Soviet stamp "140 days in space"
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