Cocoon Nebula Short Run
Images
North America Nebula and Pelican Nebula Mosaic Preview
Above is the start of the mosaic. 3 Panels that will probably be six before it is all said and done. Below is just the North America Part, unfinished since I need to get the top of the nebula. Click to see it at 50% of the full resolution.
Comet Erasmus (C/2020 S3) on Nov 22, 2020
Comet Erasmus (C/2020 S3) on Nov 22, 2020, 4:50 AM to 5:40 AM. 50×60 sec sub-images captured in SharpCap 3.2, QHY183c at -20C cooling, Gain 20, Offset 200, Optolong L-eNhance filter, Televue TV-85 at F/5.6, dark, flat, bias calibration, Metro area, Bortle 7-8 zone, clear and average transparency, seeing was poor for comet elevation (under 12 degrees.) Star-Freeze version.
New comet discovered in September, 2020 in the morning sky at twilight. Very low and very hard to image from the metro area I’m in. I used an Optolong L-eNhance filter, which helped beat back the terrible LP I had to image through when it was less than 12 degrees above the horizon.
The Great Orion Nebula, M42
Gamma Cas and The Ghost Nebula
Monkey Head Nebula In 40 Minutes
Running Man Nebula and The Orion Nebula Mosaic
Gain was too high for this project. The over-saturated areas caused column/row artifacts which created dark horizontal bands on either side of the brightest part of the core. It was difficult to deal with in post-processing. Next time, I want to try some low-gain, longer exposures instead to see if the banding problem goes away.
For fun, I combined this image with my M42 project image that included all my best data to date. Here is the results of that mix:
The Pelican Nebula from the City
Pickering’s Triangle on Nov 18, 2020
Comet Close Approach – ATLAS (C/2020 M3 (ATLAS))
A very dark sky would have made quite a difference for this comet, but to me it is almost too small to be worthy of a trip to the boonies just for this guy. A runt comet. lol
This was taken from a Bortle 7-8 zone in a Metro area with the Optolong L-eNhance filter, my QHY183c camera and Televue TV-85 telescope.
It was moving very fast and exposures of two minutes showed slight trailing. I made a star-streaks version with some 3×5 minute simulated exposures and 4×3 minute simulated exposures. The actual sub-images were 30 seconds and SharpCap was used to LiveStack the simulated exposures. Here it is below:
This was taken before the 1st image, so you can see how far that sucker moved in the intervening time.