Heart Nebula with ASA 10N Astrograph and ASI6200MM Full Frame Kamera (Mike)

Heart Nebula with ASA 10N Astrograph and ASI6200MM Full Frame Kamera

Link: http://www.theinvisibleuniverse.com/Gallery_DeepSky/index.php

Link to TIFF/FITS: http://www.theinvisibleuniverse.com/Gallery_DeepSky/images/DeepSky_2021/HeartNebula%20IC1805_ASA10Nf3.8+ASI6200MM+GM2000_2021_12_11_HaOIIIRGB_web_fullres_noframe_nologo.jpg

Once again the Heart Nebula, but this time with my ASA 10N Newtonian Astrograph with the 3" Riccardi corrector at 950mm f3.8. The ASI6200M provides a large field of view despite the longer focal length of the telescope. Tedious optimisation measures now provide an almost fully illuminated full-frame image.

I now also use the Baader M68 Tilter, which was recently launched. The main problem with full-frame cameras is the tilt of the image sensor in the camera body. ASI and other camera manufacturers do not do a good job here. To eliminate the tilt, ASI offers a tilt plate, but frankly it is useless because the screws to eliminate the tilt are hidden by the filter wheel and the M68 adaption. I have spent long nights and hours of trial and error trying to eliminate tilt with unsatisfactory results. For each optimisation cycle, I have to unscrew the camera from the telescope, remove the entire filter wheel, make minor adjustments to the tilt plate, put everything back together, screw the camera to the telescope, take a picture and analyse the tilt. Terrible.
And now the Baader M68 tilter comes into play. The tilt adjustment screws are on the side of the unit, easily accessible with a small Allen key while the camera is taking a live video stream through the telescope. In just one hour, I was able to almost completely eliminate the tilt using the camera's live view. Really convenient!
The remaining irregularities in the star image are caused by a slight distortion of the mirror cell, which are meanwhile fixed.

17x600s Ha+OIII + 6x180s RGB per channel.
ASA 10N f3.8 and the Riccardi 3" Newton Corrector plus the ASI6200MM Pro and Baader 2" Filters. Baader M68 Tilter. 10micron GM2000QCI mount. Guiding with the ASI120mini and a 50mm Guidescope. N.I.N.A. Astro Imaging Suite and PHD Guiding in my backyard observatory.
Location: Ruhrgebiet, Germany.

For more information please visit my website:
http://www.theinvisibleuniverse.com/Gallery_DeepSky/index.php

I have made a video of my last astro excursion to the Col de Restefond in the French Alps:
https://youtu.be/gPtH5CbVsc0

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