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RICHARD COFER

Lunar Occultation of Jupiter (Egress)

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M74

Started by hakescl, 10/29/2010 03:28AM
Posted 10/29/2010 03:28AM Opening Post
More data from a couple of weeks ago that I just hadn't had time to process. New color subs were much better, and new L was a mix of good, poor, and so-so... There were apparently some stacking issues (CCDStack) that I think were from some of the subs having more or less background gradients than others. I wanted to stretch the image a bit more, but also didn't want to just crop the edges. So I compromised. Any suggestions on a fix would be most welcome.

The high-resolution version is ~.52"/pixel. Image and details are here:

http://www.fortlewis.edu/observatory/image_detail.asp?ID=235

Charlie

Fort Lewis Observatory: (37.238, -108.052) ~2360m (7744 ft.) elevation.
Darkness - typically 6.5+
Scope - Meade 16" LX200; f6.3 focal reducer
Focus - JMI Smart focus
Camera - SBIG ST-10XE; (~.5"/pixel)
Guiding - AO-8 and/or Meade 5"/DSI/PHD
http://www.fortlewis.edu/observatory
Posted 10/30/2010 10:38PM #1
Charlie,
Nice! I have an image of M74 that is 1.64"/pixel (I binnned 2x2 with a C8 at f/8). You can sure tell the difference on your .52"/pixel. Nice job.


Jim Thommes

Mak-Newt 152 mm
C8
Megrez II APO
Zenithstar 66 mm APO
G11/Gemini
ST8300M
Artemis285 Camera
Canon 350D DSLR

http://jthommes.com/Astro/