Okay so the solar system is the timeline of emails received for people who got into STEP, and light from the sun is the small flow of tickets that are available, and everyone from the distance of Earth or closer has a possibility of tickets, I would assign the timeline as follows:
Mercury - 12:01 - Congratulations you have a pretty good shot
Venus - 12:01-12:10 - You deserve to feel pretty good but you chances aren't really that great.. maybe some time in July you'll get a random email
Earth - 12:10-12:15 - Aw shucks - you were there at 11:59 hitting refresh non stop but you probably missed the bill. Keep a glimmer of hope deep within your heart.
Mars - 12:16-12:21 - Really don't have a chance, but you'll be hitting refresh on your gmail account until midnight on the day STEP officially closes.
effin Jupiter.. Pluto, mine as well be the Edge of the Observable Universe - 12:22 and after - Start savin up for Ebay and tracking down friends IMMEDIATELY!
Disclaimer - this is not an exact measurement - just how I feel inside my bones. And no I don't follow my own post.. do you?