Dumbbell Nebula - M27 (crop)

Posted: Dec 30th, 2020

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NGC

Technical Info

Telescope/Lens: Sky-Watcher 130/650 PDS

Camera: Canon 550 D

Mount: Sky-Watcher EQ5

Guide Scope: No guide

Software: DeepSkyStacker, FitStacker, PhotoShop

Accessories: Sky-Watcher F5 Coma Corrector 2"

Exposure:

680 x 30" ISO/Gain: 3200

Red zoneLight Pollution:

Kharkiv, Ukraine

Dec 29th, 2020

5 h 40 m

2253

Another "approach" to the Dumbbell, also known as planetary nebula M27 in the constellation Vulpecula, a crop of the center.
This photo is the result of six sessions in September 2020. Taken from a balcony in Kharkiv, a red zone of light pollution.

Resolution: 1800x1350 px

Scale: 1095 KB

Igor Malik

156

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Comments

Hiparon

Stacking more than 150-200 frames doesn't make much sense, as the quality of the final image will be roughly the same. Try it and compare the results.

30 Dec, 2020 Reply

Igor Malik Replied to Hiparon

I've tried it multiple times. Of course, there's no dramatic improvement. But the signal-to-noise ratio does increase, noise decreases by ten to twenty percent, and previously unnoticeable details even start to show. So, gather as much signal as you can, both through longer exposures and more frames.

30 Dec, 2020 Reply

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