Starship Asterisk*

callaharj wrote:A Smile in the Sky
Copyright: Ryan Callahan
The other day I got off work from the zoo and had the pleasure of capturing my very first circumzenithal arc!

Click to view full size image

daloop wrote:Harvest Moon Corona

Copyright: Adam Moncrieff

Click to view full size image

Canon EOS Rebel T3i, f/5.6 55-250mm lens set to 96mm at ISO 1600
1/6s exposure for clouds
1/2000s exposure for moon

Taken Sep. 29/2012 at 10:22pm from Ottawa, Ontario, Canada

http://www.amoncrieff.ca

marion165 wrote:Cloud Rays and Star Trails
http://www.flickr.com/photos/radicalretinoscopy
Copyright: Marion Haligowski


Cloud Rays and Star Trails by Radical Retinoscopy, on Flickr

During the 81 exposures used to make this photograph clouds began rolling across the sky in a north to south direction. I made a composite image without the clouds but decided to include them in the final image. I like how the clouds appear to originate from a "radiant" to the northwest. This image was made of 81 twenty-second exposures taken with a Canon t2i. Each exposure was 20 seconds, 800 ISO, f/4.5 using a Sigma 10-20mm lens at 10 mm. Two exposures were taken at the end focusing on the plants in the foreground, stopping the lens down to f/22 and light painting the field. All images were stacked using StarStaX.