Astronomicheskaya kartinka dnya (APOD)

Bol'shoe temnoe pyatno Neptuna: propavshee, no ne zabytoe
1.12.2001 | Astronomicheskaya kartinka dnya

Kogda kosmicheskii apparat NASA "Voyadzher-2" proletal mimo dalekogo Neptuna v avguste 1982 goda, astronomy byli kraine udivleny. Poskol'ku Neptun poluchaet vsego 3 procenta solnechnogo sveta, otrazhaemogo Yupiterom, oni ozhidali uvidet' temnuyu, holodnuyu, spyashuyu planetu. Vmesto etogo na snimkah Voyadzhera pered nami predstal dinamichnyi i turbulentnyi mir.

Zvuki meteornogo dozhdya
30.11.2001 | Astronomicheskaya kartinka dnya

Na etoi zamechatel'noi chetyrehkadrovoi animacii viden bolid i razvitie ego dovol'no ustoichivogo dymnogo sleda. Snimki byli sdelany dve nedeli nazad vblizi goroda Sal'vadora, Braziliya. Podobnoe zrelishe horosho znakomo nablyudatelyam po vsemu miru, kotorym dovelos' uvidet' v noyabre bogatyi bolidami meteornyi dozhd' Leonid.

Nishodyashii koronal'nyi potok
29.11.2001 | Astronomicheskaya kartinka dnya

Poslednee vremya aktivnoe Solnce, vybrasyvalo v nashu storonu intensivnye potoki chastic solnechnogo vetra i oblaka plazmy, chto privodilo k poyavleniyu velichestvennyh polyarnyh siyanii. No vmeste s tem, vse bol'she nakaplivaetsya strannyh nablyudenii, vypolnennyh priborom...

Obnaruzhena atmosfera u planety vne Solnechnoi sistemy
28.11.2001 | Astronomicheskaya kartinka dnya

Pryamoe obnaruzhenie atmosfery u planety vne Solnechnoi sistemy - eshe odin shag chelovechestva na puti k obnaruzheniyu vnezemnoi zhizni. Eto neozhidannoe otkrytie bylo sdelano Devidom Charbannau (David Charbonneau, Kaliforniiskii tehnologicheskii institut) s kollegami po rezul'tatam nablyudeniya na Kosmicheskom teleskope im. Habbla zvezdy HD 209458, pohozhei na Solnce. Kogda obrashayushayasya vokrug nee planeta, prohodit mezhdu

Drevnie sloistye otlozheniya na Marse
27.11.2001 | Astronomicheskaya kartinka dnya

Chto izobrazheno na etom snimke - Mars ili Zemlya? Kak ni stranno, eto izobrazhenie Marsa. To, chto napominaet zemnuyu beregovuyu liniyu, v deistvitel'nosti obrazovano drevnimi sloistymi porodami i nanesennym vetrom marsianskim peskom. Predstavlennyi na snimke uchastok imeet v poperechnike okolo treh kilometrov i raspolozhen v kratere Skiaparelli.

Leonidy s dorogi
26.11.2001 | Astronomicheskaya kartinka dnya

Inogda nuzhno prosto ostanovit'sya i nablyudat' meteory. Rannim utrom 18 noyabrya gruppa iz odinnadcati chelovek iskala rovnoe i bezoblachnoe mesto, chtoby pronablyudat' meteornyi dozhd' Leonid. Oni vyehali iz central'noi Aiovy — izobrazheniya s meteosputnika pokazyvali, chto luchshim mestom dlya nablyudenii mozhet okazat'sya yuzhnaya Minnesota. Tuda oni i napravlyalis'.

M16: Zvezdy vyluplyayutsya iz orlinyh yaic
25.11.2001 | Astronomicheskaya kartinka dnya

V Tumannosti Orla rozhdayutsya zvezdy. Na etom snimke, poluchennom v 1995 godu s pomosh'yu Kosmicheskogo Teleskopa imeni Habbla, vidny isparyayushiesya gazovye a globuly (angliiskaya abbreviatura EGG -- ot evaporating gaseous globules -- oznachaet yaico), kotorye othodyat ot stolbov, obrazovannyh molekulyarnym vodorodom i pyl'yu.

Merkurii Marinera
24.11.2001 | Astronomicheskaya kartinka dnya

Blizhaishaya k Solncu planeta Merkurii ostaetsya samoi tainstvennoi sredi vnutrennih planet Solnechnoi sistemy. Pryachas' v luchah Solnca, Merkurii yavlyaetsya ob'ektom, trudnym dlya nablyudeniya s Zemli. Edinstvennym kosmicheskim apparatom, issledovavshim Merkurii s blizkogo rasstoyaniya, byl "Mariner-10", vypolnivshii dva proleta vblizi Merkuriya v 1974 i 1975 godah, i osmotrevshii okolo 45 procentov poverhnosti planety.

Podschet padayushei pyli
23.11.2001 | Astronomicheskaya kartinka dnya

18 noyabrya v yasnyi temnyi bezlunnyi predrassvetnyi chas na beisbol'nom pole v Grinbelte (Greenbelt), Merilend yabloku negde bylo upast'. Sobravshayasya tolpa, zataiv dyhanie, smotrela v nebo, lish' izredka peregovarivayas' blagogoveinym shepotom. "Skol'ko ty naschital?" — sprashival kto-to. Nekotorye uzhe davno sbilis' so scheta. Drugie za korotkoe vremya naschityvali sotni meteorov-Leonid.

Bolid, dymyashiisya sled, meteornyi potok
22.11.2001 | Astronomicheskaya kartinka dnya

Vozvrashayas' s orbity shattly vhodyat v atmosferu so skorost'yu okolo 8 kilometrov v sekundu, pri etom trenie nagrevaet zashitnoe keramicheskoe pokrytie do temperatury svyshe 1400 gradusov Cel'siya. V otlichie ot shattla kometnaya...