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Publikacii

za dekabr' 1999 goda.

Razdel: Planety i Solnechnaya sistema

Desyat' let otkrytiya planet APOD Desyat' let otkrytiya planet
28.12.1999 | Astronomicheskaya kartinka dnya

V nachale 1990-go goda byla izvestna edinstvennaya planetnaya sistema - nasha Solnechnaya sistema. V 1991 godu byla otkryta pervaya vnesolnechnaya sistema okolo pul'sara. Ukazaniem na sushestvovanie planety byla neznachitel'naya raznica mezhdu prihodom impul'sov ot pul'sara - kompaktnoi neitronnoi zvezdy. V seredine 1990-h astronomy obnaruzhili planetu tipa Yupitera okolo HD217107, zvezdy solnechnogo tipa, po otnositel'nomu kachaniyu zvezdy.


Reya: vtoroi po velichine sputnik Saturna APOD Reya: vtoroi po velichine sputnik Saturna
4.12.1999 | 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 APOD Ellips dlya posadki Mars-Polyar-Lendera
3.12.1999 | 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.


Bolid Leonid 1999 goda APOD Bolid Leonid 1999 goda
1.12.1999 | 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 APOD Posadka na yuzhnyi polyus Marsa
30.11.1999 | 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.


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