Comet C/2012 S1 (ISON)

[wrs]

Why can't we see ISON pass in these frames?

http://cometison.gsfc.nasa.gov/#

http://secchi.nrl.navy.mil/sccimages/index.php?margin=175&subdir=EUVI_B/20131128/1024&nothumb=1

Watch out, you might get this thread tossed to the conspiracy forum.

 

[Belz...]

Boo... I was really looking forward for this.

 

[Checkmite]

http://www.spaceweather.com/

That was yesterday. Overnight and today, the remnants have faded quite dramatically:

 

[rcfieldz]

New Trajectory

I wonder if the comet's fly by the sun has changed its path and if it could be now set on a collision course with our planet(or something else?). And how long it takes to circle our solar system?

 

[pakeha]

Boo... I was really looking forward for this.

Me, too.
Even so, at 6:30 Sunday morning I'll be scanning the eastern skies, just in case...
http://www.theguardian.com/science/2013/nov/29/comet-ison-survive-encounter-sun-earth

 

[shadron]

I wonder if the comet's fly by the sun has changed its path and if it could be now set on a collision course with our planet(or something else?). And how long it takes to circle our solar system?

Yes, it undoubtedly did, by about 270 degrees. That's what happens to things that fall into gravity wells. Having it hit Earth (if it made it at all) would be a very small percentage shot, considering that it is not even in the plane of the bulk of the planets (the ecliptic).

From what I've heard the comet is on a hyperbolic orbit, which means it will never return here. This can happen when the near collision with another object out there in the Oort gave it more than escape velocity towards the sun; in the Oort cloud, that much energy is relatively low.

 

[Checkmite]

From the images it's clear the cometary debris is headed "upwards" relative to the ecliptic. So I'd say while the course may have been altered from the expected, perhaps even drastically, I don't believe the Earth or any other planet is in danger.

Although given the dissolute nature of the debris at this point, it would be less of a collision and more of a glitter-bombing, which would be a fabulastrophe rather than a catastrophe.