The Astronaut Scholarship Foundation’s 2012 Fall Semi-Annual Auction of Astronaut Experiences and Memorabilia catalog has debuted online. You can preview the lots and register for your virtual paddle number here.

More than 40 lots are up for grabs this year, including seven unique one-on-one experiences with astronauts.

Bidding begins Friday, August 17, 2012 at 9:00 a.m. EDT and concludes Thursday, August 23, 2012 at 10:00 p.m. EDT.