Author Topic: Comet ISON  (Read 10253 times)

Quialiss

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Re: Comet ISON
« Reply #15 on: November 23, 2013, 08:04:45 am »
More frames!  Some gorgeous tail dyamics in both Encke and ISON. 
http://www.isoncampaign.org/karl/updated-ison-encke-movie

voyager1682002

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Re: Comet ISON
« Reply #16 on: November 23, 2013, 01:20:09 pm »
It's really awesome  :D

jules

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Re: Comet ISON
« Reply #17 on: November 23, 2013, 02:14:21 pm »
Wow - some solar wind speed there!  8) 8)

Quialiss

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Re: Comet ISON
« Reply #18 on: November 25, 2013, 04:14:26 pm »
Animations!

http://www.isoncampaign.org/ison-encke-nov19-23
http://cometal-comets.blogspot.com.au/2013/10/comet-ison.html

Just a few more days before it reaches SOHO and STEREO coronographs! 

jules

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Re: Comet ISON
« Reply #19 on: November 25, 2013, 11:47:22 pm »

Quialiss

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Re: Comet ISON
« Reply #20 on: November 26, 2013, 02:27:55 pm »
Wait and watch, all we can do! 

ISON has shown up in COR2 B, just a few frames.  Not long before it's in SOHO data and we get more than STEREO beacon data live. 

watersnake

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Re: Comet ISON
« Reply #21 on: November 26, 2013, 07:01:16 pm »
There she goes in Stereo A :o
ooooooh!!

Quialiss

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Re: Comet ISON
« Reply #22 on: November 26, 2013, 09:55:46 pm »

Not too much to see here, beacon data being what it is, but it's definitely a comet!   Here's hoping the current lull is not a fatal one.  Even if it is, ISON definitely goes into the collection of absolutely stunning comets STEREO has observed. 
(The other bright blob higher in the frame is Jupiter, the filters on Stereo's COR instruments have some interesting distorting effects on bright objects.)

voyager1682002

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Re: Comet ISON
« Reply #23 on: November 27, 2013, 07:35:31 am »

jules

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Re: Comet ISON
« Reply #24 on: November 27, 2013, 01:25:00 pm »
Nov 26 Stereo A animation from Damian Peach:
https://www.facebook.com/photo.php?v=10152156602180934

Quialiss

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Re: Comet ISON
« Reply #25 on: November 27, 2013, 02:48:05 pm »
It's brightening again! 
http://www.isoncampaign.org/karl/kitt-peaks-and-valleys

Matthew Knight suggests that instead of ISON 'guttering out,' what actually is/was happening is the end of an outburst and return to normal activity levels, which are now ramping up as expected.  Needless to say that would be a very good thing for the chances of post-perihelion observations!

If you take a look at all the currently available STEREO HI1 data(http://stereo.gsfc.nasa.gov/cgi-bin/images sorry I don't have a premade animation), ISON is putting out dust in large, irregular bursts over the 20-22nd and then the tail smooths out as dust production becomes more regular.  Waiting on the next science data downlink to see that brightening! 

At the moment, STEREO B HI1, STEREO A COR2, and SOHO COR3 all have their eyes fixed on ISON.  It will leave STEREO B HI1 and come into COR2 FOV tomorrow. 

Quialiss

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Re: Comet ISON
« Reply #26 on: November 27, 2013, 04:28:26 pm »
Showing off the latest beacon data from STEREO to give some scale to the current brightness visible in SOHO. 


jules

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Re: Comet ISON
« Reply #27 on: November 27, 2013, 07:38:41 pm »
Good news indeed. It's certainly got people talking about comets. :)

jules

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Re: Comet ISON
« Reply #28 on: November 28, 2013, 01:10:30 pm »
And another view from helioviewer.

Quialiss

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Re: Comet ISON
« Reply #29 on: November 28, 2013, 03:01:52 pm »
Update from CIOC.  ISON is definitely on a roller coaster ride!  Just a few more hours left to go.

http://www.isoncampaign.org/karl/hanging-by-its-fingernails

ISON Perihelion G+ hangout https://plus.google.com/events/c8t7i5dbr1k50oq89giloiqe8rc

Quote
The participants in this Hangout include:

• C. Alex Young, Solar Physicist, Associate Director for Science in the Heliophysics Science Division and co-founder of The Sun Today - NASA's Goddard Space Flight Center, Greenbelt, Md.,

• W. Dean Pesnell, Solar Physicist and Project Scientist for the Solar Dynamics Observatory - NASA's Goddard Space Flight Center, Greenbelt, Md.,

• Karl Battams, Comet Scientist for the Naval Research Laboratory, Washington, DC, and solar spacecraft lead for NASA's Comet ISON Observing Campaign, joining from Kitt Peak Observatory in Arizona, where the solar telescope will be observing ISON.

• Phil Plait, writes Slate's 'Bad Astronomy' blog and is an astronomer, science evangelizer, and author of the books "Bad Astronomy" and "Death from the Skies!"
« Last Edit: November 28, 2013, 04:13:17 pm by Quialiss »