Notes from a Small Observatory
The trials, tribulations and small triumphs of a Charlotte, NC astronomer imaging under Bortle 8/9 skies.
Tuesday, October 28, 2025
Jupiter--The Wonder that is Digital Processing :)
I found an old image of Jupiter I took in 2022 on 12/25. It was captured with a QHY camera and my 5 inch MAK. The stacked image looked so unpromising that I didn't process it. But then I noticed it on my desktop and, just for fun, dropped it into Registax 6. I was pretty impressed what the wavelet functions pullled out. I maxed out every one of them, and the resulting image is surprisingly decent. It's quite a tribute to the venerable Registax software! I've presented before and after images here for comparison. I also performed auto color balance in Registax.
Monday, October 27, 2025
North America Nebula Mosaic
This is a 3 hour mosaic of the North America Nebula. Stacked on the D3 and processed in Stellar Studio Photoshop PS. Yet again, the D3 did an outstanding job.
The Heart and Soul Nebulas with the Dwarf 3
This is a 2.5 hour mosaic of the Heart and Soul Nebula. Stacked in Megastack and processed in Stellar Studio and Photoshop PS. This is the first time I’ve been able to capture both of these objects in a single imaging session.
Friday, October 24, 2025
Melotte 15
This is around 24 hours of total integration time on Melotte 15, the open cluster in the center of the Heart Nebula, and the areas around it. Individual subs were 20 seconds in EQ mode. I processed in Siril, SETI Astro, Affinity 2, and Graxpert. I’m in Bortle 8/9, so I had some gradients to remove, but the S50 captured some nice detail in the dust and gas clouds.
Tuesday, October 21, 2025
Comet Lemmon
Comet Lemmon. 10 min x 10 second exposures. S50. Color is a little strange, but at least it’s there :)
The Double Cluster in Perseus
The Double Cluster in Perseus. This is a 4.5 hour capture with one minute subs. Stacked on the D3 and processed in Stellar Studio. This is an object where the wide field of the D3 really excels. It also did a great job of capturing the colors of the stars.
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Jupiter--The Wonder that is Digital Processing :)
I found an old image of Jupiter I took in 2022 on 12/25. It was captured with a QHY camera and my 5 inch MAK. The stacked image looked so un...
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I had a couple of emails asking how to defork an ETX telescope. The ETX 90 and ETX 125 were optically superb scopes, but the mounts left a...
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The ZEQ25 doing its stuff on a cold night--imaging the Orion Nebula with an 8 inch f/4 astrograph. Note the lovely Christmas rug :) As ...
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One of the great things about being a part of an online community of people with similar interests is that you learn a lot from people who a...






