Sh2-132 Cepheus’ lighting clouds

Sh2-132Cepheus' lighting clouds

 

An excellent tool for capturing the wonders of the universe is the so-called narrowband technique, which allows you to let only certain very narrow wavelengths of light enter the camera’s sensor, excluding light pollution. In addition to eliminating light pollution, this technique has several other benefits that have already been exploited with the Hubble Space Telescope. One of these advantages is that very strong contrast and high resolution can be achieved over traditional RGB images. For this reason, this method is becoming increasingly popular with amateur astrophotographers as well, so I used it to take my SH2-132 photo as well. The area is rich in ionized glowing gas, of hydrogen, oxygen, and sulfur of which light I recorded for 56 h.

The displayed colors do not correspond to the actual wavelengths (OIII turquoise, HII: red, SII: very very red), but a so-called false color palette, where the monochrome images of the three different wavelength are placed in the basic color channels (RGB). The great advantage of this display is that, in addition to high contrast and resolution, it also helps in the visual interpretation of the photo with color dynamics.

Scope: 200/800 SkyWatcher Newton
Mount: SkyWatcher NEQ6 pro upgraded
Guiding: Ekos Internal
Camera: Moravian G3 16200 Mark II
Expo: Ha: 17 h, OIII: 19,5 h, SII: 19,5 h
Date: 2021 september – december
Location: Törökkoppány, Halásztelek

7 thoughts on “Sh2-132 Cepheus’ lighting clouds

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