M27 Dumbell Nebula (Ulli_K)

Celestial hemisphere: Northern · Constellation: Vulpecula (Vul) · Contains: Dumbbell Nebula · M 27 · NGC 6853 · The star 14Vul

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M27 Dumbell Nebula

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M27 Dumbell Nebula

After some months of break I started again. M27 was in good position for the first half of a night. It's not the first time I tried this object:

2019 version: https://www.astrobin.com/esnk6q/

2017 version processed in 2019: https://www.astrobin.com/421333/C/

2017 version processed in 2017: https://www.astrobin.com/421333/0/?nc=

Tis year I used an Optolong L-enhance filter for the first time. Exposure time could be increased to 480s and contrast was much better.

It's good seeing some progress ;-)

Comments are welcome

CS, Ulli

Original
B
Final
D

B

Description: I used TGV denoise to "soften" the outer parts of the nebula that suffered from stretching. It was really hard to find the right mask for these fainter parts. I worked with the script ColorMask and used a combination of a cyan and a yellow(!) mask for the OIII and Ha regeions, respectively.

Uploaded: ...

D

Description: going back a few steps and trying with ExponetialTransformation

Uploaded: ...

Messier Objects
Imaged with APT
Takahashi Refractors

Messier

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Status	Basic success
Started	...
Astrometry.net job	4054561
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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M27 Dumbell Nebula

M27 Dumbell Nebula

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M27 Dumbell Nebula

M27 Dumbell Nebula

Equipment

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Description

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Revisions

B

D

Sky plot

Histogram

In these public groups

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