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Relativist
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Reged: 10/11/03

Loc: OC, CA, USA
Re: Comet ISON - Cooked well done? new [Re: brianb11213]
      #6221791 - 11/28/13 03:56 PM

Yes Otto, hence the opinions that it's not going to survive the trip.

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Ptarmigan
Lagopus lagopus
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Reged: 09/23/04

Loc: Arctic
Re: Comet ISON - Cooked well done? new [Re: krp]
      #6221795 - 11/28/13 03:57 PM

Quote:

Everyone else seems to have given up on ISON.
Here is where I found that image:
http://groups.yahoo.com/neo/groups/comets-ml/conversations/topics/22635




Still waiting.


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SteveRosenow
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Re: Comet ISON - Cooked well done? new [Re: cnargie]
      #6221798 - 11/28/13 03:58 PM

*BLEEP* I was just about to post that same thing!

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Otto Piechowski
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Reged: 09/20/05

Loc: Lexington, KY
Re: Comet ISON - Cooked well done? new [Re: cnargie]
      #6221800 - 11/28/13 03:58 PM

Same question again please. Why is the tail trailing what may be the head of the comet and not pointing directly away from the sun?

Otto


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boandpokey
sage
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Reged: 07/25/13

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Re: Comet ISON - Cooked well done? new [Re: brianb11213]
      #6221801 - 11/28/13 03:58 PM

Quote:

Quote:

just a plume of fading dust. its over



Pining for the fjords?




sir Robert!

if there was any nucleus the tail would begin forming, pointing away from the Sun, yes...


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SteveRosenow
professor emeritus
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Reged: 07/10/12

Loc: Shelton, Washington
Re: Comet ISON - Cooked well done? new [Re: Otto Piechowski]
      #6221804 - 11/28/13 04:00 PM

Quote:

Same question again please. Why is the tail trailing what may be the head of the comet and not pointing directly away from the sun?

Otto




The speed in which it was traveling may not have allowed the tail to point away.

It was traveling quite fast as I recall.


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krp
Vendor. DarkSiteFinder.com


Reged: 11/10/10

Loc: Central Illinois
Re: Comet ISON - Cooked well done? new [Re: boandpokey]
      #6221807 - 11/28/13 04:00 PM

I wish an expert could tell us what we're seeing. Everybody must be eating turkey.

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Relativist
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Reged: 10/11/03

Loc: OC, CA, USA
Re: Comet ISON - Cooked well done? new [Re: Otto Piechowski]
      #6221809 - 11/28/13 04:00 PM

Quote:

Same question again please. Why is the tail trailing what may be the head of the comet and not pointing directly away from the sun?

Otto




Close to the sun the comet is going faster, so leaving a tail behind it as it passes the outer part of the solar atmosphere. unlike when it's further away, the solar winds are pushing out a tail.


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SteveRosenow
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Reged: 07/10/12

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Re: Comet ISON - Cooked well done? new [Re: boandpokey]
      #6221810 - 11/28/13 04:01 PM

Quote:

Quote:

Quote:

just a plume of fading dust. its over



Pining for the fjords?




sir Robert!

if there was any nucleus the tail would begin forming, pointing away from the Sun, yes...




It took C/2011 W3 Lovejoy a little while to begin forming a tail again.

Let's all not call this thing early.

Let's be patient, wait it out, and then see where things take us!


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Ptarmigan
Lagopus lagopus
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Reged: 09/23/04

Loc: Arctic
Re: Comet ISON - Cooked well done? new [Re: SteveRosenow]
      #6221815 - 11/28/13 04:03 PM

Quote:



It took C/2011 W3 Lovejoy a little while to begin forming a tail again.

Let's all not call this thing early.

Let's be patient, wait it out, and then see where things take us!




I do not see why many news outlets are saying it is over. Comets are like cats.


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margin_walker
professor emeritus


Reged: 07/25/05

Loc: Nr Waterfoot, England.
Re: Comet ISON - Cooked well done? new [Re: SteveRosenow]
      #6221816 - 11/28/13 04:03 PM

I'm on the edge of my toadstool here. NASA tweet says "we do not see comet ISON" and news channels are calling it cooked but some of the images coming through are not as conclusive . . . cheer for the underdog!

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dyslexic nam
Carpal Tunnel
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Reged: 01/28/08

Loc: PEI, Canada
Re: Comet ISON - Cooked well done? new [Re: SteveRosenow]
      #6221818 - 11/28/13 04:04 PM

Well, I was busy watching Europa League footy, and I gotta say it is pretty depressing checking in on this thread. Finger crossed that somehow the indications are wrong, but man this is worse than most projected. We went from comet of the century, to cool comet but not comet of the century, to no comet. Bummer.

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SteveRosenow
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Reged: 07/10/12

Loc: Shelton, Washington
Re: Comet ISON - Cooked well done? new [Re: dyslexic nam]
      #6221824 - 11/28/13 04:06 PM

Latest C2



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cnargie
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Reged: 06/19/13

Re: Comet ISON - Cooked well done? new [Re: SteveRosenow]
      #6221825 - 11/28/13 04:07 PM

Check this timelapse of possible survival!

http://farm6.staticflickr.com/5480/11106507235_ec20b425d7_o.gif


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SteveRosenow
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Reged: 07/10/12

Loc: Shelton, Washington
Re: Comet ISON - Cooked well done? new [Re: SteveRosenow]
      #6221828 - 11/28/13 04:08 PM

Also, animation.

http://farm6.staticflickr.com/5480/11106507235_ec20b425d7_o.gif


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Crusader
Pooh-Bah


Reged: 08/14/05

Loc: Prince Albert, South Africa
Re: Comet ISON - Cooked well done? new [Re: cnargie]
      #6221835 - 11/28/13 04:10 PM

I'll be damned! Strange that they didn't pick up anything on SDO.

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dyslexic nam
Carpal Tunnel
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Reged: 01/28/08

Loc: PEI, Canada
Re: Comet ISON - Cooked well done? new [Re: cnargie]
      #6221837 - 11/28/13 04:10 PM

Quote:

Check this timelapse of possible survival!

http://farm6.staticflickr.com/5480/11106507235_ec20b425d7_o.gif




Is it just me, or does it look like an expanding trail of something following behind the comet? That would seem to be consistent with the development of a tail on an object moving extremely fast.

Plus it seems to be brightening in that gif.


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Michael Rapp
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Reged: 04/27/04

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Re: Comet ISON - Cooked well done? new [Re: SteveRosenow]
      #6221838 - 11/28/13 04:10 PM

Whether ISON survives or not, I just can't get over the notion that a bunch of amateur astronomers from all over the world are watching a comet survive/not-survive a close encounter with a star in real time!

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krp
Vendor. DarkSiteFinder.com


Reged: 11/10/10

Loc: Central Illinois
Re: Comet ISON - Cooked well done? new [Re: cnargie]
      #6221840 - 11/28/13 04:11 PM

I thought it was predicted to make a tighter loop around the sun. I guess I was wrong.

ISON Predicted Orbit

Whatever we are seeing in the latest images seems to be following the predicted orbit.


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Relativist
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Re: Comet ISON - Cooked well done? new [Re: SteveRosenow]
      #6221842 - 11/28/13 04:12 PM

Quote:



It took C/2011 W3 Lovejoy a little while to begin forming a tail again.

Let's all not call this thing early.

Let's be patient, wait it out, and then see where things take us!




Lovejoy was different because it was visible via the SDO observations. That said, just because there were no uv/X-ray emissions visible doesnt mean it is toasted, it could just be composed differently so it's off has is less prone to interaction with the suns magnetic fields.

So far latest SOHO looks like something made it. We will see later what that something is.


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