Messier 27 and my Mad-Mak (Walter Leonhard Schramböck)

Celestial hemisphere: Northern · Constellation: Vulpecula (Vul) · Contains: Dumbbell Nebula · M 27 · NGC 6853 · PK060-03.1

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Messier 27 and my Mad-Mak

Acquisition type: Electronically-Assisted Astronomy (EAA, e.g. based on a live video feed)

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Messier 27 and my Mad-Mak

Acquisition type: Electronically-Assisted Astronomy (EAA, e.g. based on a live video feed)

Yesterday I tortured my Skywatcher Maksutov (Skymax 180) again, well actually I tortured the mount, not the telescope.

Now that I've paid attention to the working distances behind the reducer, the distortions have gotten a little smaller. But the stars are not quite round yet, because I still have problems to achieve a good guiding with this trumpet. In terms of weight, the ZWO AM5 should be able to handle this, but despite the reducer, I have an effective focal length of approx. 1900mm according to the image analysis, which unfortunately the AM5 can no longer track that precisely.

The picture was exposed for 150 minutes at full moon, I had to keep the individual exposures short because of the imprecise tracking. No filter was used (only UV/IR-cut, which doesn't count as a filter for me).

I'm already reasonably satisfied with this picture, of course there's enough room for improvement.

Pictured here is Messier 27, the Dumbbell Nebula. According to Wikipedia, it is about 1300 light years away and was created by a red giant that shed its shells at the end of its life cycle - it is therefore a so-called planetary nebula (as you know).

Austria Astrophotography
N.I.N.A. Users
ASI533MC Pro
ZWO AM5
Maksutov imaging
Mak Owners

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Status	Advanced success
Started	...
Astrometry.net job	8209435
PixInsight job	U88BCL43SQ8OKUIMILA2K7OAYB9XB6AG
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	19h59m35s.651
RA (top/left)	19h58m52s.927
RA (top/right)	20h00m16s.691
RA (bottom/right)	20h00m18s.493
RA (bottom/left)	19h58m54s.462

Dec (center)	+22°43′28″.38
Dec (top/left)	+22°34′28″.66
Dec (top/right)	+22°34′05″.81
Dec (bottom/right)	+22°52′28″.74
Dec (bottom/left)	+22°52′50″.50

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Messier 27 and my Mad-Mak

Messier 27 and my Mad-Mak

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Messier 27 and my Mad-Mak

Messier 27 and my Mad-Mak

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