Monday, April 27, 2009
A (mostly) clear night
I've been observing all night, and for the most part it has been very clear. We did have some clouds when the dry line went through, traveling east-to-west. Anyway, our half-sky camera captured this, and I'm posting the resulting video. The video covers three hours, and you can see the stars moving as the Earth turns, and clouds forming, streaming away, and dissipating as the dry line moved through. The camera is mounted facing south on the Harlan Smith telescope. At the start of the video, the constellation Leo is in the upper center, moving right. Later, Virgo and Boötes are entering on the upper left, and the head of Scorpius just starts to appear at the bottom left.