View Single Post
  #1  
Old 04-11-2013, 08:15 PM
Dennis
Dazzled by the Cosmos.

Dennis is offline
 
Join Date: May 2005
Location: Brisbane
Posts: 11,823
ISS and Uranus – a lucky capture….Brisbane 3rd Nov 2013 7:28pm AEST

I was outdoors on Sun night (3rd Nov 2013) experimenting with the C9.25 and DSLR to see how corrected, or flat the field would be using the Celestron x0.63 Reducer/Corrector and it turned out to be not very corrected or flat!

I slewed to Uranus and then checked the 4 brighter satellites in Starry Night Pro when lo and behold, I saw that the ISS was due to make a close pass in the next couple of minutes. I hurriedly framed what I thought would be the best FOV. With my naked eye I saw the ISS approaching and thought that I had hit the “record” button (twice) to start recording with a non-reporting optic fitted.

When I looked at the rear CF active LED I noticed it wasn’t active (red) so I just hit the shutter release and grabbed the trail of the ISS instead, which shows obvious width due to the almost 1500mm focal length. I manually held the shutter open for some 25 secs, but the recorded ISS trail is just a second or so long.

I have cropped an 800x600 full res frame to show the trail plus uploaded a few screen shots from The Sky X Pro to verify that I had indeed recorded Uranus and the ISS in the same field – a lot of sheer good luck was required due to the last minute effort with Uranus and the ISS just squeezing into the same frame!

Cheers

Dennis
Attached Thumbnails
Click for full-size image (EOS 5D Mark III_0146 ISS Uranus FR Crop 800.jpg)
79.0 KB73 views
Click for full-size image (The Sky X Screen Copy 1024.jpg)
96.1 KB64 views
Click for full-size image (C925 Canon 5D Mk III Crop 1024.jpg)
58.7 KB60 views
Click for full-size image (The SkyX Overlay C925 Canon 5D Mk III Crop 1024.jpg)
92.9 KB54 views

Last edited by Dennis; 04-11-2013 at 08:45 PM.
Reply With Quote