Comet C/2012 S1 - ISON

Zadius Sky said:
Yeah, I'm going back and forth. The commenters on there are like, "show me the comet" while there's alot of chatters among NASA experts. :rolleyes:
That's what experts are for: never a straight answer :)
 
Zadius Sky said:
Gandalf said:
Zadius Sky said:
mkrnhr said:
well.. nothing so far

Indeed. I'm looking at both Approach and Perihelion panels.

best place so far is: http://youtu.be/q03I1B_yrPg

Yeah, I'm going back and forth. The commenters on there are like, "show me the comet" while there's alot of chatters among NASA experts. :rolleyes:

Indeed, we want to see it !
 
maybe it has vaporized on the way in. That's what may be suggested from the SOHO LASCO images at least.

_http://soho.esac.esa.int/data/realtime/c2/512/
 
I kept thinking that it went into the Sun (or went back into time like Enterprise did twenty years ago).

Here's a latest animation:

_http://science.nasa.gov/media/medialibrary/2013/11/28/sundiver_anim3.gif
 
According to normal (tv) news this evening, ISON is making it way, maybe visible soon and if so, will be visible for those in the northern hemisphere apparently for a forth night or so.

So It’SON
 
Zadius Sky said:
Gandalf said:
Zadius Sky said:
mkrnhr said:
well.. nothing so far

Indeed. I'm looking at both Approach and Perihelion panels.

best place so far is: http://youtu.be/q03I1B_yrPg

Yeah, I'm going back and forth. The commenters on there are like, "show me the comet" while there's alot of chatters among NASA experts. :rolleyes:

Ugg! Really irritating dialogue going on there. Latest comment was

" scientist don 't really know what a hot molten chunk of ice is going to do when it goes around the sun"

Hot molten chunk of ice- what a bunch of oxymorons!

I think he maybe slipped up on his "official definition there"
 
They are now saying it appears to have gone "poof"!


ison_poof.gif
 
Several posts suggesting it disappear! This one from Phil Plait, one of the cientist form the Nasa hangout ..http://www.slate.com/blogs/bad_astronomy/2013/11/28/nasa_hangout_live_video_chat.html
 
mkrnhr said:
Its interaction with the solar environment is very clear at ~17UT!

It may just be an apparent disintegration, electrical interaction, with the nucleus reappearing in a bit and reasserting it's charge/tail. Dunno. Not looking too good for the poor little thing.
 
Here we see better the brightening when it crosses the plasma stream:
C2%20animation.GIF

If the core discharged without disintegrating completly (looks like a cloud emerging with no active core), there might be some fragments on their way. Hard to tell from the thing that emerges at the end of the animation.
If it is the case (big chunks inside the debris cloud), their orbit should be different from the projected orbit of the comet, maybe closing further towards the ecliptic somehow (cynical guess).

Added: the emerging cloud of debris:
 

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mkrnhr said:
If it is the case (big chunks inside the debris cloud), their orbit should be different from the projected orbit of the comet, maybe closing further towards the ecliptic somehow (cynical guess).

I just attached the latest, and you can see the comet heading straight up and not as bright as before. Looks like a fragment or more.
 

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Things are more clear on lasco C3.
Russians haven't been very lucky with their comets so far :)
More seriously, the trajectory of the visible debris cloud is very different from the initial orbit, maybe dominated by solar wind (headless comet: _http://www.sciencedaily.com/releases/2003/06/030618081318.htm). Tomorrow things should be more clear.
 
This is what Jim McCanney has to say:

"November 28, 2013 ... 9 PM CDT ... !!!!!!!!!!!!! comet ISON made it through the solar dive and is alive and completely well on the outbound leg of its capture journey becoming a permanent member of our solar system ... the standard scientific agenda was continually to state it was breaking apart and IT NEVER DID ... even as it made its dive into the solar atmosphere they claimed it had disintegrated but it emerged completely intact and developed a full comet tail within minutes ... NASA continues to stall releasing the SOHO data which had the best view and is at least 6 hours behind on releasing this critical data ... the video clearly shows the comet coma shrinking exactly as predicted by my Plasma Discharge Comet Model ... you can see this clearly ... jim mccanney"

I'm not exactly sure what he means when he says it will become a permanent member of our solar system. He's also dedicated a radio show to ISON that he's already posted so maybe he'll explain there.
 
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