Astrophotography Planetary Nebula

Astrophoto: Dumbbell Nebula – Messier 27 – 09/22

In the course of reprocessing, the Dumbbell Nebula M27 is in focus today. This planetary nebula was my first serious deep-sky object with the VIXEN Cassegrain.

What an awesome object. My 1st object shot with 1800mm focal length. This is why I bought the VISAC. Yes, one evening is not enough exposure time. I will have to see what the weather brings in the next few weeks.

I am really happy with this result, knowing that I will be able to do better in future. Why? Because my focus is not optimal, a fitting new part to use the Pegasus Focuser is already on the way. And my new guiding cam, the QHY 462 is not doing what I want. I am still not sure if it might be a driver problem in INDI or if the hardware is broken. Therefor I used my old Omegon 1200b guiding cam on my new 240mm guidescope.

Picture in full resolution on Flickr:

Dumbbell Nebula, Messier 27

Old vs. new Workflow

Technical overview

Focal Length1800mm
Aperture ratio9
Erecting Lense / Reducer
MountSkywatcher HEQ-5
Mount ControlINDI
Guiding Scope Focal Length240mm
Guiding CameraOmegon 1200b mono
Guiding SoftwareEKOS, INDI
Dithering3 pixel
CameraCANON EOS M100(a)
Methodfocal projection
Camera angle-90°
Camera ControlEKOS, INDI, Gphoto2
Photography Date09/22/2022
Exposure-Time Lights30x300s
Correction framesFLATS, BIASES
SensitivityISO 400
Processing Date09/24/2022
Reprocessing Date01/11/2024
Stacking, IntegrationPixInsight
Processing SoftwarePixInsight
Image EditingAffinity Photo
Reprocessing SoftwarePixInsight
Capture PlaceKoblenz, Germany
LightpollutionBortle 5
Scattered lightstrong

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