New Hubble Image of Comet ISON
2 replies to this topic
Posted 25 April 2013 - 08:18 AM
I have high hopes for this comet. Crossing my fingers hoping it stays in one piece. 700,000 miles from the surface of the sun at its closest pass... Did I read that right? If so that's... really close. What are the chances this thing will survive such a close passage?
Posted 25 April 2013 - 08:23 AM
Well, it's going close enough that the sun's tidal effect will be larger than its own gravity. So if it is a loose rubble pile, it's going to fall apart. If it is a solid frozen block, it will probably stay together. Depends on how well its structurally held together.