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RICHARD COFER

Lunar Occultation of Jupiter (Egress)

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M83

Started by jthommes, 06/15/2012 07:14PM
Posted 06/15/2012 07:14PM Opening Post
So M83 is a bit of a challenge for me here in northern latitudes. I did apply extinction factors to the colors to compensate for the low elevation (over and above that of my G2V factors taken near zenith). Color is always a challenge close to the horizon for me. Image and details are at the link below.

http://www.jthommes.com/Astro/M83.htm

scope - C8 at f/6.9
camera - ST8300M (Baader LRGB filters)

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/
Posted 06/15/2012 08:37PM #1
That is nice Jim, it is a tough target for me too, really in the worst part of my sky so I have not tried too hard to capture it.

[SIZE="Large"][/SIZE][COLOR="Blue"][/COLOR] Floyd Blue grin
Amateur Imager
Posted 06/17/2012 02:10AM #2
Looks like you got good color correction. Yes, it certainly is a challenge. (Right now I am dealing with correcting for smoke.)

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