NGC4236

[Rodd]

This is about 1/2 the red channel and a solid 17 hour of Ha.  The distinct dots near the core are in the Ha channel and not the red channel-so they are not stars I don't think, but Ha features, which surprised me.  I was trapped in a bright Moon with no real decent Ha targets for a 5" scope, at least until 2:00 when the Crescent Nebula becomes available.  I came across this galaxy, which is somewhat faint and not imaged all that often.  I was surprised to learn that it has distinct, Ha.  I think it will make an interesting image becuase there is not a well defined core - at least not at this focal length, but the Ha, if enough is collected, stands out fairly well.  Really looking forward to seeing this one with color.  As is typical for me, I will need 4-5 hours each of RGB and a solid luminance.  Since the target is approaching the meridian, inclement weather and clouds could threaten to derail this project for the year.

TOA 130 with ASI 1600. about 17 hours of Ha and 2 hours of red.

Edited April 27 by Rodd
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