posted on Sep, 13 2011 @ 01:49 PM
Originally posted by mileslong54
reply to post by SemiDamaged
How do you know the size of this comet?
I don't know the size, but I can tell you it's not large enough to block the Sun. Here's why (it's simple logical deduction)...
The planet Venus occasionally gets between the Earth and the Sun. When Venus does this, it is said to "Transit" the Sun. When Venus transits the
Sun, it is about 30 Million miles away from earth -- and at that distance, that whole big planet is almost imperceptible as it crosses in front of the
Sun. The miniscule decrease in Sunshine can't be noticed.
Here is a picture of Venus transiting the Sun. You can see that Venus appears hundreds of times smaller than the sun (i.e., considering the apparent
sizes of the Sun and Venus as seen from Earth, you can fit a few hundred Venuses in the visible area of the Sun):
When Elenin transits the Sun, it will be 'roughly' that same distance from Earth (about 35 million miles). Therefore, to block out the sunlight to
Earth, it would need to be HUNDREDS of times larger than Venus. Considering how close Elenin is to Earth at the moment, if Elenin were really that
big, it would be one of the largest and brightest objects in the night sky right now.
...by the way, I'm talking about the size of Elenin's nucleus. Elenin's coma could be very large (the size of a planet), but the coma is very very
thin, and is virtually mostly empty space. So the coma is too thin to block sunlight.
edit on 9/13/2011 by Soylent Green Is People because: (no reason given)