Show HN: discover asteroids online

I've been working on this as a side project for a while; wondering what people think and how I can improve it.

Asteroids actually do show up in this imagery (taken from NEAT and SDSS). People who spot something get to name their discoveries, which I think is a great incentive.

Three minor comments:

In the example the asteroid is fixed and the stars are moving. In the samples to analyze is the other way around. It's a little confusing.

Even if I touch "Done"/"Poor Quality" without selecting any asteroid candidate, the web page ask me about my email. I guest that in the images I saw there were no asteroids :( so you won't need my email. (An even if there is an asteroid there, if I didn't locate it my contribution is legible.) (Are you going to publish the emails of everyone that participated, on only the persons that discovered the asteroid?)

Add a game/cheat mode, were at random one in ten images contains a known asteroid. When you identify it the page give more information (name, size, discovery date, ...)