Kometa ISON

[gile.ms]

Sumnjam da može nešto drastično da promeni orbitu čak i kada se raspadne...
sve meteorske kiše su zapravo ostaci nekog većeg tela koje se raspalo...

ova slika to lepo ilustruje:


naravno, da bi kometa nakon raspada prouzrokovala meteorsku kišu, njena orbita mora da se u nekoj tački seče sa našom (Zemljinom )
(a to sa kometom ISON nije slučaj)

[r2d2]

Baš šteta što tako malo ostade od komete! Lepo se vidi koliko joj je opao sjaj kada izlazi iz  perihela ... Možda će ipak nešto ostati za fotkanje? Ja nažalost nemam opremu, ali tu  ste vi..

[Predrag]

Uh, sahranismo je prerano.

Definitivno je nešto ostalo od nje. Koliko? Videćemo uskoro.

http://svemir.wordpress.com/2013/11/29/ison-kometa-koja-zna-iznenaditi/

[r2d2]

Sad se izglada pojavljuju i 2 repa...

http://soho.esac.esa.int/hotshots/index.html/

[Predrag]

Zbog dopune teme:

http://forum.astronomija.co.rs/forum-astronomskog-magazina/pravilo-o-postavljanju-linkova/msg60475/?topicseen#msg60475

izvinjavam se svim članovima foruma kojima je zasmetalo moje postavljanje linkova prema mom blogu, ali mi je jednostavno tako najlakše.
Svakako nije u pitanju reklamiranje, jer nemam koristi od tog bloga.

Voleo bih da mogu da pobrišem ove linkove, ali nažalost to je neizvodljivo.

[Sasa]

Još je lakše da se postavi link: http://goo.gl/ELSC7B
pa svako nađe šta mu treba , ali svima je bolje da dobiju pravu, dobro objašnjenu vest (i eventualno link na Više), nego da izlaze sa jednog mesta i čitaju ono što je autor hteo da kaže. Znam da je to teže za autora, ali je lakše za čitaoce. A i korektnije je.

OK, ne treba ništa da se briše. Sve ok.

[Igor]

Izgleda da ostatak komete ISON naglo gubi sjaj.
http://www.skyandtelescope.com/observing/home/Comet-ISON-Updates-193909261.html

[Sekula]

Izgleda da ostatak komete ISON naglo gubi sjaj.
http://www.skyandtelescope.com/observing/home/Comet-ISON-Updates-193909261.html

Tako naglo gubljenje sjaja u magnitudama u roku od samo nekoliko casova jasno govori o tome da se kometa raspala i da je to jezgro definitivno zdrobljeno, tacnije ono sto je ostalo od njega a da nije isparilo. Najverovatnije ce aktivnost utihnuti i sama kometa ce preci u istorijski arhiv.

[Igor]

Kometu ISON sam posmatrao vizuelno samo jednom, u zoru, 16. novemba, i nadao sam se, kao i svi ovde, da će biti  lepšeg prizora i bolje prilike za posmatranje posle perihela... Kako bledi ostatak komete, tako bledi i svaka nada da će se nešto vizuelno moći posmatrati.

[Kizza]

Izgleda da je preživela  Naučnici se nadaju da će dobiti i rep.Nešto vise znaće se za neki dan:

COMET ISON LIVES:  Cancel the funeral. Comet ISON is back from the dead. On Nov. 28th, Comet ISON flew through the sun's atmosphere and appeared to disintegrate before the cameras of several NASA and ESA spacecraft. This prompted reports of the comet's demise. Hours later the comet revived, sprouted two tails and rapidly brightened. It is now receding from the sun with a fair chance of becoming a photographic object in the morning sky as early as Dec. 2nd or 3rd. A new coronagraph movie from SOHO documents the flyby.

Before the flyby, experts had made many predictions about what might happen to the comet, ranging from utter disintegration to glorious survival. No one predicted both.

Karl Battams of NASA's Comet ISON Observing Campaign says, "[colleague] Matthew Knight and I are ripping our hair out right now as we know that so many people in the public, the media and in science teams want to know what's happened. We'd love to know that too! Right now, here's our working hypothesis:

"As comet ISON plunged towards to the Sun, it began to fall apart, losing not giant fragments but at least a lot of reasonably sized chunks. There's evidence of very large dust in the long thin tail we saw in the [SOHO coronagraph] images. Then, as ISON plunged through the corona, it continued to fall apart and vaporize, losing its coma and tail completely just like sungrazing Comet Lovejoy did in 2011. What emerged from the Sun was a small but perhaps somewhat coherent nucleus that has resumed emitting dust and gas for at least the time being."

Battams emphasizes that it is too soon to tell how big the remnant nucleus is or how bright the resurgent comet will ultimately become. "We have a whole new set of unknowns, and this ridiculous, crazy, dynamic and unpredictable object continues to amaze, astound and confuse us to no end. We ask that you please be patient with us for a couple of days as we analyze the data and try to work out what is happening."

Astrophotographer Babak Tafreshi has edited an HD video that compares views of ISON from both of SOHO's coronagraphs. "It seems the comet could become a naked eye object with several degrees of scattered tail by Dec 2nd or 3rd," he predicts. "It's not the comet of the century for sure, and fainter than the Lovejoy sungrazer in Dec. 2011, but an interesting imaging target is just a few nights away!" 

[Darchy]

Ja sam je takodje samo jednom posmatrao, od tada je (na moju veliku žalost) nebo nad Kraljevom bilo zatvoreno. Plašio sam se da će se takvi vremenski uslovi održati i da ću je propustiti kad bude u perigeju. Par dana nakon toga video sam animaciju Solarsystemscope softwera i dodatno se izbedačio... 39 mil. km je izgledalo preblizu. Što reče Sekula - ode u arhiv

[Ljubiša]

Ima li kakvih novosti o ISON-u? Da li je ostao kakav "kamičak" od nje?
ISON viđen sa ISS-a ... http://www.nasa.gov/content/comet-ison-spotted-from-space-station/index.html#.Up8tpR2Zabs

[gile.ms]

Ništa... samo prašina...
pokušaće Habl polovinom decembra da snimi ostatke (ne sme ranije jer bi došao u opasnost da "pogleda u Sunce")
taj snimak biće čisto u naučne svrhe (sastav komete i sl.), ne verujem da će biti neki lep prizor... ali nestrpljivo čekam i to

P.S. sjajan snimak sa ISS-a

[gile.ms]

Novost sa http://spaceweather.com/

Ništa od ISON-a, barem ne sjajnije od 16,5 magnitude


detaljnije na http://spaceweathergallery.com/indiv_upload.php?upload_id=91066