ISON is still alive Or at least a piece of it survived anyway... Earlier as it approached the Sun, the head of the comet seemed to be smeared out (instead having a bright tip), suggesting it had evaporated. Now we see these images from SOHO showing that a piece of ISON has come out the other side. Most likely a much smaller piece of the nucleus but it does still have a dust and ion tail. Hopefully it will get bright enough to observe from Earth, but we will find out tomorrow if in fact the nucleus is still there and active.
Astronomers tracking what they hoped would be the “comet of the century” say some of it may have survived its close encounter with the Sun.
It was first reported that the Comet Ison’s nucleus and tail had been destroyed by the Sun’s radiation and tidal forces but the European Space Agency (ESA) said the “story continues”.
The latest pictures appear to show a brightening of a chunk of the comet which has caused a surge in excitement among skygazers.
It is hard to know what has happened but experts say dust and gas are being released and the tail may be growing back.
If it is visible in the night sky, it is too soon to know how bright it will be or how long it will last.
Comet Ison, which had been hurtling through space at speeds of 845,000mph, was due to pass within 730,000 miles of the surface of the star last night.
It was expected to be met with temperatures of about 2,700C (4,892F) and an intense gravitational pull as it prepared for its solar slingshot.
Full Article
Credit: SOHO/NASA
YEA ISON! Hopefully it continues to develop a tail in the next few days
Image suggesting ISON has evaporated By Jakub Cerny
Will Comet ISON make it? Live G+ Hangout of Perihelion
The comet is intact so far, which is a good sign. Some images from SOHO today Here are 3 possible outcomes of the 1.2km-wide ball of ice and dust as it swings around the giant ball of nuclear fire we call the Sun. Hopefully it makes it out whole, good luck ISON!
Also you can try to see ISON on the day of perihelion like this. Just find something with a crisp edge to block out the Sun. Edit: more recent link on this
All ISON the Sun
Over the next month, Comet ISON will either provide skywatchers on Earth with astronomical beauty or enormous disappointment.
Thanksgiving weekend finds the visitor from Oort swinging behind the sun at more than 300,000 miles per hour (or “haulin’ ass” in scientific terms), coming only 730,000 miles from our hot ball of gas at its closest approach. To put that in perspective, Mercury orbits an average of nearly 36 million miles from the sun. Needless to say, not the friendliest place for a ball of ice and rock to be, eh?
To make things even more exciting, the sun has unleashed a coronal mass ejection (seen in the lower animation). Shouldn’t affect the comet much, though. the sun’s immense energy will put enough strain on it as it is.
Whether or not it will survive the close shave is unknown, but astronomers are watching closely (as you can see, it’s entered into view of NASA’s solar observing telescopes!). If ISON does make it through intact (perhaps lightly broiled?) December promises some superb comet watching.
For updates: Check out a live feed of its position and speed at CometISON 2013. I also recommend Phil Plait’s Bad Astronomy blog and here’s a host of links from NBC’s Alan Boyle.