My cooled camera is still for a check at the dealer, so "playing" with my non-cooled Zwo ASI385MC planetary camera. Had a go at NGC 891 and considering the camera, I really like the result, despite being it a bit grainy and "color blobbed".
And again (or like usual) amazed by the Ioptron CEM25EC mount: this is 120 seconds non-guided with a focal length of 1440 mm, making my scope around f/7 with the reducer.
Have to keep an eye on it since the tracking rate at the zenith is different then, lets say, 70 degrees. I have to manually adjust the sidereal tracking then but for me that's part of the whole fun experience smile.gif
The Silver Sliver Galaxy (NGC 891, Caldwell 23) is an edge-on, unbarred spiral galaxy in Andromeda. It's at 30 million light years distance and has a radius of 60,000 light years, making it bigger then the Milkyway which as a radius of 53,000 light years.
It has an apparent size of 13′.5 × 2′.5 and has a apparent mag of 10,5.
The Netherlands, Bortle 7/8
Meade LX200 8" f/10 ACF OTA
Ioptron CEM25EC mount (no guiding)
Optolong L-Pro filter
Optec Lepus Standard 0.62x reducer
Zwo ASI385MC planetary camera
Captured with SharpCap Pro
115 x 120 sec / Gain 120 / Offset 15 / White balance R50/B50
Stacked in DeepSkyStacker
105 lights / 25 darks / 100 flats / 100 darkflats
Processed in Photoshop
Levels, curves, color adjustment, reduce noise, contrast enhancement.
