Heart Of Comet Jacques

Comment

Comment by Greg Marshall on September 8, 2014 at 1:51pm

Thanks, Marc. The Heart Nebula image is actually a 2x1 mosaic from the AT111. I shot the comet with an EdgeHD 8" (with 0.7X reducer) and scaled it down to (very approximately!) the right size.

I've never tried a non-reducing flattener. I'm very happy with the William Optics Flat 4 reducer/flattener. I like the focal length, focal ratio, and image quality it produces with the AT111. For longer focal length I go to either my AP 142 (at its native f/7.5 or with a reducer to about f/6) or the EdgeHD. The AP scope produces a remarkably flat field without any correction (not perfect, but seeing limitations here are almost always such that the field curvature is undetectable). That's fortunate, because flatteners for these scopes are VERY expensive!

Comment by Marc Basti on September 8, 2014 at 1:29pm

Is this w/the AT111? Either way have you ever used a straight flattener (no reduc) on it? Liked your article in ATT, well done. I let my paper subscription lapse and they sent me a copy (reminder) and it happened to be that issue. Marc

Comment by Greg Marshall on September 8, 2014 at 8:01am

Thanks, Bob. You can order a print! www.wa-chur-ed.com

Comment by Greg Marshall on September 7, 2014 at 7:51pm

Thanks, Philip.

Comment by Philip A Cruden on September 7, 2014 at 7:12pm

WOW! Greg that is truly amazing. What a beauty.

Comment by Greg Marshall on August 27, 2014 at 4:47pm

Thanks, Marc. Maybe it's too easy to make cool pic when I'm faking it!?

Comment by Marc Basti on August 27, 2014 at 4:40pm

Now this looks like an APOD, it has a unique style to it. Cool Pic, Marc

Comment by Greg Marshall on August 27, 2014 at 2:31pm

Thanks, Dave. And congratulations on today's APOD!

Comment by Dave Lane on August 27, 2014 at 2:12pm

Sweet as candy