2013-12-14

Stars


   So cold today.
   I set a camera for a meteor swarm in Gemini. The center of bright star is Jupiter.
   This is the first time to take stars by digital camera. Digital Camera can set higher speed easly, but the image sensor have heat in 20-30 seconds. Dose it mean is it impossibe to take photos stars draw the tracks look like circles? Today, the lens was f=44.8mm that is not wide enough, so the stars were short lines on the photo, not just dots.
   Also still needs film camera to enjoy the astronomical photography?