Comet C/2012 S1 - ISON

[MrEightFive]

but looks like it is visible with the naked eye.

Of course not. Several resources report magnitude being around 12.7. It is not nearly naked-eye magnitude (should be at least <= 6.0).
And image at the link says "3 stacked 30-second images"...

 

[Laura]

See this article also:
http://www.sott.net/article/268333-Sun-sent-28-solar-flares-erupting-through-space-in-a-week-and-there-may-be-more-on-the-way

Possibly due to approach of comets?

 

[Altair]

I've found a couple of interesting videos on youtube about electric nature of comets and about ISON:

http://www.youtube.com/watch?v=ZspLjRW702c
http://www.youtube.com/watch?v=dM9I2Wljsqc

 

[mkrnhr]

There are rumors today that ISON is experiencing an outburst. We will see tomorrow. It would be interresting in conjunction with what is happening with the Sun.

Edit: The announcement comes from TRAPPIST (TRAnsiting Planets and PlanetesImals Small Telescope - A Belgian telescope in La Silla, Chile).
It has observed a first boost in activity on November 5th after a long stability, and on November 12th the flux through Red and Green filters increased by a factor ~2.

 

[Altair]

There are rumors today that ISON is experiencing an outburst. We will see tomorrow. It would be interresting in conjunction with what is happening with the Sun.

Edit: The announcement comes from TRAPPIST (TRAnsiting Planets and PlanetesImals Small Telescope - A Belgian telescope in La Silla, Chile).
It has observed a first boost in activity on November 5th after a long stability, and on November 12th the flux through Red and Green filters increased by a factor ~2.

Yeah, here is a video about it on youtube: COMET ISON Breaking News: HUGE Outburst in Pre - Perihelion - Now Visible to the Naked Eye
https://www.youtube.com/watch?v=Mt2kRT-JrGc

 

[mkrnhr]

Yes, the outburst has been confirmed by many amateur astronomers. Magnitude in the visible is reported to be between 6 and 5, which makes it visible to the naked eye. There is also the possibility of a "breakup" of the nucleus, which is to be verified as well.

 

[Laura]

Not likely to be "water" as they suggest, but electrical arcing that may blow it to bits.

 

[seiw83]

We have new image from STEREO A - stunning

_http://stereo.gsfc.nasa.gov/beacon/

 

[Laura]

We have new image from STEREO A - stunning

_http://stereo.gsfc.nasa.gov/beacon/

Which image of what? The above only takes you to a site and it is covered with images of the sun.

 

[mkrnhr]

Here is an animation with ISON and Encke in the same field: _http://www.isoncampaign.org/files/images/blogpics/ison_encke_nov19_22.gif
Too bad we don't see if ISON interacts with the CME coming from the right (the animation stops just before its arrival in the same plane)

 

[seiw83]

Bottom part od this site. Here is direct link to picture showing mercury, wenus and ison. Ison is about 20 mln kilometers behind mercury on this picture.

http://stereo.gsfc.nasa.gov/browse/2013/11/23/ahead/hi1/1024/20131123_071801_s7h1A.jpg

 

[Laura]

Bottom part od this site. Here is direct link to picture showing mercury, wenus and ison. Ison is about 20 mln kilometers behind mercury on this picture.

http://stereo.gsfc.nasa.gov/browse/2013/11/23/ahead/hi1/1024/20131123_071801_s7h1A.jpg

Okay, I see. Thanks!

 

[Laura]

Here is an animation with ISON and Encke in the same field: _http://www.isoncampaign.org/files/images/blogpics/ison_encke_nov19_22.gif
Too bad we don't see if ISON interacts with the CME coming from the right (the animation stops just before its arrival in the same plane)

Wow, that is amazing!

Isn't it interesting that our very quiescent sun has become more active ONLY as the comets approach?

 

[elle]

Volcanoes are becoming active as well, I think we have 7 already..

 

[mkrnhr]

Wow, that is amazing!

Isn't it interesting that our very quiescent sun has become more active ONLY as the comets approach?

Yes, that was very noticeable! Also, many terrestrial phenomena like violent weather (and volcanos) started about the same time.
On this particular comet itself, there was a sort of weakening when it passed close to Mars in October, than it became very active in November after it passed through the ecliptic.

Here is an updated animation (with a gap - conspiracy theory alert lol) : _http://www.isoncampaign.org/files/images/blogpics/ison_encke_nov19_23_crop_hi1a.gif


Added: It is possible to generate a secchi video here: _http://secchi.nrl.navy.mil/index.php?p=js_secchi_day_png
One selects for instance HI1, Secchi-1, enter the date: 20131121 and select a 6 days duration.