Komety SOHO
25.02.2000 | Astronomicheskaya kartinka dnya

Chetyre goda uspeshnyh nablyudenii za Solncem prinesli Kosmicheskoi solnechnoi observatorii SOHO takzhe status naibolee plodovitogo iskatelya komet za vsyu istoriyu chelovechestva - SOHO nashla 102 novye komety. Na segodnyashnei kartinke pokazany neskol'ko izobrazhenii poluchennye instrumentom LASCO, ustanovlennom na koronografe SOHO. LASCO byl razrabotan dlya slezheniya za solnechnoi koronoi na rasstoyaniyah okolo 20 millionov km ot Solnca.

StereoEros
24.02.2000 | Astronomicheskaya kartinka dnya

Naden'te svoi krasno-golubye ochki i unesites' k asteroidu 433 Eros, na 260 millionov km! Asteroid Eros obrashaetsya vokrug Solnca s periodom 1.8 zemnyh goda. Ego gabarity ravny 40 x 14 x 14 km, poverhnost' ego volnoobrazna i useyana kraterami, valunami i zhelobami.

Gigantskaya vyboina na Erose
21.02.2000 | Astronomicheskaya kartinka dnya

Asteroid Eros tait v sebe nekotorye zagadki. Avtomaticheskii apparat NEAR (apparat dlya izucheniya asteroidov, sblizhayushihsya s Zemlei) nachal kruiz okolo etogo 30-kilometrovogo kosmicheskogo bulyzhnika na proshloi nedele. Poetomu na Zemlyu stali nepreryvno peredavat'sya novye izobrazheniya.

Eros s orbity
16.02.2000 | Astronomicheskaya kartinka dnya

14 fevralya korabl' NEAR stal pervym iskusstvennym sputnikom asteroida. NEAR byl uvlechen slaboi gravitaciei etogo 36-kilometrovogo bulyzhnika, obladayushego formoi tufli. Segodnya na kartinke pokazan pervyi snimok, kotoryi sdelali kamery korablya, kogda tot podletel k asteroidu 433 Eros na 360 km. Na snimke razlichimy detali razmerom 30 metrov.

Neozhidannaya valentinka. Ot asteroida
14.02.2000 | Astronomicheskaya kartinka dnya

Mozhet byt', Luna zavlekaet nashi serdca, no eto ne ostanavlivaet asteroid ot togo, chtoby ne poslat' nam valentinki. V pyatnicu, na udivlenie vsem, korabl' NEAR, prednaznachennyi dlya sblizheniya s asteroidom 433 Eros, sfotografiroval vpadinu, imeyushuyu formu serdca.

Vstrecha Erosa s NEAR
10.02.2000 | Astronomicheskaya kartinka dnya

Posle togo, kak korabl' NEAR sovershil nezaplanirovannyi ranee vitok vokrug Solnca on napravilsya k asteroidu 433 Eros so skorost'yu 32 km v chas. Na nastoyashii moment korabl' priblizilsya uzhe primerno na rasstoyanie 3200 km, sobiraetsya priblizitsya eshe na 320 km k 14 fevralya, Dnyu Svyatogo Valentina.

NEAR i asteroid Eros
5.02.2000 | Astronomicheskaya kartinka dnya

23 fevralya 1998 goda korabl' NEAR (angl. abbreviatura ot "Vstrechi s asteroidami, proletayushimi blizko k Zemle") proletal mimo asteroida 433 Eros. Avtomaticheskii korabl' dolzhen byl pritormozit' i poletat' vokrug Erosa. Odnako proizoshlo nepredvidennoe vyklyuchenie glavnogo dvigatelya, i realizaciya plana ne udalas'. V nastoyashee vremya NEAR vnov' sblizhaetsya s etim asteroidom.

Samyi bol'shoi bulyzhnik
2.01.2000 | Astronomicheskaya kartinka dnya

Slabo svetyasheesya pyatnyshko v centre kartinki - eto samyi bol'shoi bulyzhnik. Po razmeram on prevyshaet vse izvestnye asteroidy, sputniki i yadra komet. On bol'she lyuboi drugoi kamennoi planety. (Nikto ne znaet real'nyh razmerov kamennyh yader...

Desyat' let otkrytiya planet
29.12.1999 | 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
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.