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SteveRosenow
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Re: Comet ISON - Cooked well done? new [Re: boandpokey]
      #6221907 - 11/28/13 04:36 PM

Quote:

http://www.youtube.com/watch?v=Tk6sSAqoLqM

if anything worth a dang had survived it would look like this




It has yet to emerge out of the C3 occulting disc, so it's too early to tell.


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Tonk
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Loc: Leeds, UK, 54N
Re: Comet ISON - Cooked well done? new [Re: SteveRosenow]
      #6221911 - 11/28/13 04:38 PM

Quote:

so it's too early to tell.




So what can't we see in the C2 images ?? I see a headless comet - just the faithfull tail following a vanished dog ... so to speak


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cnargie
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Reged: 06/19/13

Re: Comet ISON - Cooked well done? new [Re: Starhunter249]
      #6221917 - 11/28/13 04:40 PM

Newest frame I have seen 21:24UT

https://pbs.twimg.com/media/BaMGWJ5CcAAttkR.png:large


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Starhunter249
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Reged: 06/07/10

Re: Comet ISON - Cooked well done? new [Re: cnargie]
      #6221925 - 11/28/13 04:43 PM

Quote:

Newest frame I have seen 21:24UT

https://pbs.twimg.com/media/BaMGWJ5CcAAttkR.png:large




Thats the one I been viewing too. Very promising. Its so cool to see this all unfolding in real time.


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MessiToM
scholastic sledgehammer
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Re: Comet ISON - Cooked well done? new [Re: cnargie]
      #6221927 - 11/28/13 04:44 PM

"Today, I am thankful that Iím not a comet the whole Northern Hemisphere was hoping to see in our telescopes before the Sun MURDERED IT. -- Wil Wheaton (@wilw)" lol

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Relativist
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Re: Comet ISON - Cooked well done? new [Re: MessiToM]
      #6221953 - 11/28/13 04:54 PM

Since it looks like it's brightening, lets see if it continues to do so.

What happens if a nucleus were to disintegrate near the sun? well I think that's been observed quite a bit, for those that are interested, check out NRL site

http://sungrazer.nrl.navy.mil


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boandpokey
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Loc: Auburndale, Fl
Re: Comet ISON - Cooked well done? new [Re: Starhunter249]
      #6221959 - 11/28/13 04:59 PM

Quote:

Quote:

Newest frame I have seen 21:24UT

https://pbs.twimg.com/media/BaMGWJ5CcAAttkR.png:large





im not sure whats promising about that

Thats the one I been viewing too. Very promising. Its so cool to see this all unfolding in real time.




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Relativist
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Re: Comet ISON - Cooked well done? new [Re: Tonk]
      #6221969 - 11/28/13 05:05 PM

Quote:


Sorry this is wrong - Tails dont just evaporate! they persist for some time. As I said C/2011 W3 (Lovejoy) tails presisted 3 weeks after the nucleus totally disrupted at T + 1.6 days. The tail dust still follows the orbit but slowly spreads out and disperses due to non gravitational forces




To be clear, there could be a debris field that continues due to it's momentum, as you correctly pointed out previously, but such a field is distinctly different from a comet tail. (see #7)

http://www.slate.com/blogs/bad_astronomy/2013/11/21/comet_ison_12_cool_facts....


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Starhunter249
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Reged: 06/07/10

Re: Comet ISON - Cooked well done? new [Re: boandpokey]
      #6221970 - 11/28/13 05:06 PM

Quote:

Quote:

Quote:

Newest frame I have seen 21:24UT

https://pbs.twimg.com/media/BaMGWJ5CcAAttkR.png:large





im not sure whats promising about that

Thats the one I been viewing too. Very promising. Its so cool to see this all unfolding in real time.







Your thoughts on that image? That image plus a few others suggest something left from ison is moving away from the sun if not an intact nucleus.


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Tonk
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Re: Comet ISON - Cooked well done? new [Re: Starhunter249]
      #6221977 - 11/28/13 05:11 PM Attachment (27 downloads)

SOHO (ESA & NASA) C2 21:24 - orbiting dust!

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dyslexic nam
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Re: Comet ISON - Cooked well done? new [Re: Tonk]
      #6221985 - 11/28/13 05:17 PM

So, is that it? 100% certain? Stick a fork in it...?

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boandpokey
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Re: Comet ISON - Cooked well done? new [Re: dyslexic nam]
      #6221988 - 11/28/13 05:20 PM

100 pct dead ill bet the farm.. someone elses farm

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Starhunter249
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Reged: 06/07/10

Re: Comet ISON - Cooked well done? new [Re: dyslexic nam]
      #6221990 - 11/28/13 05:20 PM

I been reading conflicting information. Scientists say its completely gone and some have said wait, then i read from other nasa scientist that there might be something left.

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Nave
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Reged: 02/23/10

Re: Comet ISON - Cooked well done? new [Re: Starhunter249]
      #6221993 - 11/28/13 05:21 PM

Quote:

I been reading conflicting information. Scientists say its completely gone and some have said wait, then i read from other nasa scientist that there might be something left.



I'm guessing they're correct.



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boandpokey
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Re: Comet ISON - Cooked well done? new [Re: Starhunter249]
      #6221994 - 11/28/13 05:22 PM

http://198.118.248.97/data/realtime/c3/1024/latest.html


nothing gone kaput


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Glen A W
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Reged: 07/04/08

Loc: WEST VIRGINIA USA
Re: Comet ISON - Cooked well done? new [Re: boandpokey]
      #6221999 - 11/28/13 05:24 PM

There was a great comet in the early 1800s that was headless and followed a path similar to ISON's. I can't remember the year...

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Tonk
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Re: Comet ISON - Cooked well done? new [Re: boandpokey]
      #6222002 - 11/28/13 05:25 PM

Its not due out on C3 yet - but C2 shows its a rubble pile (its brightness is far far to low)

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cnargie
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Reged: 06/19/13

Re: Comet ISON - Cooked well done? new [Re: boandpokey]
      #6222003 - 11/28/13 05:26 PM

22:02UT lasco c2 update... starting to disperse a bit

https://pbs.twimg.com/media/BaMQb1YCUAAXQ_h.png:large


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Steve OK
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Reged: 09/22/07

Loc: OKC, OK
Re: Comet ISON - Cooked well done? new [Re: Tonk]
      #6222014 - 11/28/13 05:31 PM

Tonk, this " - just the faithfull tail following a vanished dog ... " is brilliant!

I agree with the disrupted, flying gravel pile idea. There does not appear to be a nucleus or coma visible, just a diffuse streak of matter. The volatiles are quickly boiling away, being blown outward by the solar wind. You can see it in the image above. Or, I'm completely wrong.

Steve


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Relativist
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Re: Comet ISON - Cooked well done? new [Re: Starhunter249]
      #6222016 - 11/28/13 05:32 PM

I'm trying to watch the high resolution movie, last 25 frames of C2. There is a distinct difference this close in to the sun from when the comet was approaching on both the approach and the exit. It is clear the approach was brighter nonetheless. coming in it is going against the solar wind a bit more than on the way out, in addition getting so close if it were to have survived most of the volatiles near the surface would be released.

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