Poyasnenie: V proshlom mesyace kosmicheskii apparat NEAR Shoemaker pereshel na bolee nizkuyu orbitu nad asteroidom Eros i teper' obletaet ego po orbite na rasstoyanii vsego 22 mili (36 kilometrov) ot centra asteroida. Eti izobrazheniya, poluchennye 19 iyulya (sleva) i 24 iyulya (sprava) udivitel'no detal'no pokazyvayut ispeshrennuyu kraterami poverhnost' etogo kroshechnogo mira, pozvolyaya uvidet' elementy razmerom do 19 futov (6 metrov). Issledovanie poverhnosti Erosa v rentgenovskom i gamma-diapazone pozvolyaet schitat' ego drevnim pervichnym asteroidom, sohranivshimsya so vremen formirovaniya Solnechnoi sistemy. Na fotografii sleva vidno, chto ego poverhnostnyi sloi ili regolit, sostoit iz yarkih i temnyh uchastkov. Kartinka zhe, raspolozhennaya sprava pokazyvaet, chto temnyi regolit, zapolnyaet donnye oblasti nekotoryh kraterov. Levaya i pravaya fotografii ohvatyvayut oblasti shirinoi priblizitel'no 2600 i 3000 futov (800 i 900 metrov) sootvetstvenno. 31 iyulya NEAR Shoemaker, vernulsya na svoyu prezhnyuyu orbitu radiusom 31 milya (50 kilometrov), prodolzhaya netoroplivo obrashat'sya vokrug Erosa so skorost'yu priblizitel'no 6 mil' v chas.
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Publikacii s klyuchevymi slovami:
asteroidy - NEAR-Shoemaker - 433 Eros - gamma-izluchenie - Eros - orbital'naya observatoriya im.Komptona - asteroid - NEAR project
Publikacii so slovami: asteroidy - NEAR-Shoemaker - 433 Eros - gamma-izluchenie - Eros - orbital'naya observatoriya im.Komptona - asteroid - NEAR project | |
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