Uranus and Neptune October 10, 2015

Saturday night was very clear and steady so after the CAAS meeting I set up my camera to capture these two so called “ice giants”.  Everything worked well from tracking, to focus, to imaging. Unfortunately they are both dim and small so there is little detail to show but as you can see they both show disks and similar colors. I’ve placed Uranus on the left and Neptune on the right.  Both images are to the same scale, prime focus in a 2350 mm focal length SCT. Uranus was taken at best 50% of 500 100 ms frames while Neptune was taken at 250 ms.  Of course, besides similar color the obvious difference is size. Both are almost identical in true size but Neptune is farther.

Uranus-Neptune_151011

 

 

Lunar Eclipse 9/28/2015

First it was cloudy and then it was cloudier. My plan to image it from start to finish went bust. But I still had a good time. The first pictures were taken at 1/100 second, with the ISO set to automatic while the last one was a full one second. Truth be told the clouds give the events some character but we had too much of a good thing.

Lunar Eclipse 2015-09-28 RRO September 2015 2794Lunar Eclipse 2015-09-28 RRO September 2015 2800Lunar Eclipse 2015-09-28 RRO September 2015 2816Lunar Eclipse 2015-09-28 RRO September 2015 2837

Saturn 7/17/2015

I know these Saturns all pretty much look alike but this one is a little different.  I shot it with my C9.25 at F/20, a focal length of 4700mm. It turned out fairly well considering how bad the shakes were.  I’m not sure why that was but I did have a dew shield to catch the wind and was using a barlow to magnify the image and the shakes.  I think I’ll leave the dew shield off next time.  Best 20% of 1000 40ms frames.
conv_Sat_150718_023958_g4_b3_ap78_wavelets

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