Image
Index
|
A
solar corona shines over the wastes of the South Pole. Imaged
by Marko Riikonen (site)
on 1st February 1999. Marko says "The temperature earlier on
that day was -31.5 C on the ground. But at the corona cloud level
it's warmer. and well above the temperature for homogeneous nucleation."
So the corona was probably produced by supercooled water droplets.
Image ©1999 Marko Riikonen, reproduced with permission. |
|
|