Assignment #9: Create an image with star trails.
Are these shots a little gimmicky? Maybe, but they sure get a reaction when you share them, from photogs and non-photogs alike.
I suppose you could make one of these with a single very long exposure, but today, there's simply no need to run the risk of a single wayward headlight ruining an hour's work. It's so much easier to "stack" multiple exposures, a procedure that gives you various editing opportunities. You'll need an intervalometer (found on many DSLRs or available for purchase) and appropriate stacking software. I'm on Windows so I tried startrails.exe for the shots below. It's donationware so give it a try and send the guy a little money when you get something you like.
Turkey Run Star Trails
Looking north in Turkey Run State Park, near Marshall, Indiana
Miami Sky Lines
Looking straight up (no tripod - camera on its back on a picnic table) in Miami State Recreation Area, Miami and Wabash Counties, Indiana