Astronomicheskaya kartinka dnya (APOD)

Goryachii ostatok sverhnovoi v MMO v rentgenovskih luchah
9.12.1999 | Astronomicheskaya kartinka dnya

Na etom rentgenovskom izobrazhenii, poluchennom observatoriei Chandra i predstavlennom v uslovnyh cvetah, vy vidite oblako v forme bukvy "Q", razmer kotorogo sostavlyaet 40 svetovyh let. Oblako uzhasno goryachee: ego rentgenovskoe svechenie proishodit ot gaza, imeyushego temperaturu neskol'ko millionov gradusov.

Luna v udare
8.12.1999 | Astronomicheskaya kartinka dnya

Kratery, kotorye obrazovalis' v dalekom proshlom na Lune, neprikrytoi sloem atmosfery, dolgoe vremya uzhe privlekayut vzglyad cheloveka na izvestnoi storone. No i v nastoyashee vremya lyudi nablyudayut edva zametnye opticheskie vspyshki u lunnoi poverhnosti. Takoe oshushenie, chto eto vspyshki ot meteoroidov, padayushih na Lunu.

Tumannost' Koshach'ya Lapka
7.12.1999 | Astronomicheskaya kartinka dnya

Tumannosti takzhe uznavaemy po imenam, kak i koshki po tomu, kakie nepriyatnosti oni dostavlyayut. Pravda, ne naidetsya takogo kota, kotoryi mog by sotvorit' gigantskuyu tumannost' Koshach'ya Lapka v sozvezdii Skorpiona. Na segodnyashnei kartinke tumannost' Koshach'ya Lapka svetit'sya krasnym svetom vverhu. Vnizu raspolozhena tumannost' NGC 6357.

M83: galaktika Yuzhnoe Cevochnoe Koleso
6.12.1999 | Astronomicheskaya kartinka dnya

M83 - odna iz samyh blizkih i samyh krupnyh spiral'nyh galaktik na nashem nebe. Galaktiku mozhno naiti s pomosh'yu binoklya v sozvezdii Gidry. Blagodarya udivitel'nym spiral'nym rukavam ona i poluchila takoe imya - Yuzhnoe Cevochnoe Koleso.

Reya: vtoroi po velichine sputnik Saturna
5.12.1999 | Astronomicheskaya kartinka dnya

Reya - vtoroi posle Titana po velichine sputnik Saturna i pervyi samyi bol'shoi, ne imeyushii atmosfery. Reya sostoit preimushestvenno iz obychnogo vodyanogo l'da i imeet nebol'shoe kamennoe yadro. Period obrasheniya Rei krug svoei osi i period ee obrasheniya krug planety ravny - kak i v sisteme Zemlya-Luna - t.e. Reya vsegda povernuta k Saturnu odnoi storonoi.

Ellips dlya posadki Mars-Polyar-Lendera
4.12.1999 | Astronomicheskaya kartinka dnya

Na kartinke pomesheno sostavnoe cvetnoe izobrazhenie oblasti posadki korablya Mars-Polyar-Lender vblizi yuzhnogo polyusa Marsa. Izobrazhenie polucheno shirokougol'noi kameroi apparata Mars-Global-Serveior 28 noyabrya. Napravlenie na yug zdes' - vverh. Izobrazhenie pokryvaet oblast' razmerom 105 km. Planiruemoe mesto posadki korablya predstavlyaet soboi ellips, kotoryi nanesen na izobrazhenie. Seichas v yuzhnom polusharii Marsa pozdnyaya vesna.

Yuzhnoe polusharie Marsa
3.12.1999 | Astronomicheskaya kartinka dnya

Eta topograficheskaya karta yuzhnogo polushariya Marsa byla sostavlena na osnove dannyh, poluchennyh Lazernym vysotomerom s borta Marsianskogo orbitera. S borta Marsianskogo orbitera vysotomer posylal puchok lazernogo izlucheniya, kotoryi otrazhalsya ot poverhnosti Marsa bolee 200 millionov raz, tak chto v rezul'tate byli polucheny cennye tochnye izmereniya vysot.

Bolid Leonid 1999 goda
2.12.1999 | Astronomicheskaya kartinka dnya

Most Leonid meteoroids, the bits of comet debris which produce the annual Leonid meteor shower, range from a mere millimeter to a centimeter in diameter. Yet these cosmic grains of sand and gravel can put

Posadka na yuzhnyi polyus Marsa
1.12.1999 | Astronomicheskaya kartinka dnya

Poslednee vtorzhenie s Zemli na Mars planiruetsya osushestvit' v v etu pyatnicu, 3 dekabrya, kogda korabl' Mars-Polyar-Lender syadet na poverhnost' Krasnoi planety. Esli vse proidet udachno, avtomaticheskii korabl' otkroet parashyut, raspravit vspomogatel'nye opory, zazhzhet manevrovye dvigateli, i tol'ko potom pridet v sostoyanie pokoya sredi holmistyh ravnin udivitel'noi sloistoi mestnosti vblizi yuzhnogo polyusa Marsa.

Henice 70: sverhpuzyr' v Bol'shom Magellanovom Oblake
30.11.1999 | Astronomicheskaya kartinka dnya

Zvezdy massoi bolee desyati mass Solnca v znachitel'noi stepeni vliyayut na svoe galakticheskoe okruzhenie. Vliyanie takih massivnyh zvezd zaklyuchaetsya v tom, chto rezul'tate ih zhiznedeyatel'nosti peremeshivayutsya oblaka pyli i gaza, izmenyaetsya himicheskii sostav i mestoraspolozhenie budushih pokolenii zvezd i zvezdnyh sistem.