Poyasnenie: Zamechatel'nuyu bukvu "X" okolo centra etogo lunnogo peizazha legko rassmotret' v binokl' ili nebol'shoi teleskop. Odnako nemnogim udalos' ee uvidet'. Delo v tom, chto lunnyi X mozhno nablyudat' tol'ko v korotkii period okolo chetyreh chasov pered tem, kak Luna dostignet fazy pervoi chetverti. Na terminatore, ili linii, razdelyayushei osveshennoe i neosveshennoe Solncem polushariya Luny, vzaimnoe raspolozhenie kraterov Blankin, Lakail' i Purbah (Blanchinus, La Caille, Purbach) sozdaet illyuziyu, pohozhuyu na bukvu X. Astronavt, stoyashii na poverhnosti Luny v faze pervoi chetverti okolo etih kraterov, uvidel by medlenno podnimayusheesya nad gorizontom Solnce. Na nekotoroe vremya valy kraterov byli by osvesheny Solncem, a ih dno ostavalos' by v temnote. Esli smotret' s planety Zemlya, to uchastki yarkih valov na fone temnogo dna sluchaino vyglyadyat udivitel'no pohozhimi na bukvu X. Eto chetkoe izobrazhenie lunnogo X bylo polucheno v 16:45 Vsemirnogo vremeni 6 dekabrya 2016 goda. Vnimatel'no rassmotrite lunnyi terminator, i vy smozhete naiti takzhe lunnuyu bukvu V.

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Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (USRA)
NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.

Publikacii s klyuchevymi slovami: Moon - Luna - Terminator Publikacii so slovami: Moon - Luna - Terminator
Sm. takzhe: Naidite cheloveka na Lune "Muna Liza" Luna v poslednei chetverti i zvezdy-sestry Luna, pohozhaya na Saturn Yuzhnyi lunnyi peizazh Luna zatmevaet Saturn Saturn u kraya Luny Vse publikacii na tu zhe temu >>