NGC 7822 + Giacomo Pro + L-Synergy, L-Ultimate,L-QEF

NGC 7822

Credit: Giacomo Pro

Filters: Optolong L-Synergy, Optolong L-Ultimate, Optolong L-QEF

 

 

 

NGC 7822
Hubble SHO palette composition obtained by combining data collected with two types of narrow-band light pollution filters. For Ha, I used the R channel signal from the L-Ultimate filter (taken in 2023 with a Newton 200/800), while for SII I used the signal from the new Optolong L-Synergy filter. To complete the palette, I used a median of the G and B channel signals from both filters to obtain the OIII. I did not apply the classic SHO palette colour stars (magenta) to this composition, but those taken from an RGB session.
NGC 7822 is an emission nebula, about 2740 light years away, located in the eastern part of the constellation Cepheus, about 9° north of the bright star Caph, in a section of the Milky Way heavily obscured by interstellar dust and unilluminated nebulae. The best time to observe it in the evening sky is between July and December, and it is much easier to see for observers in the northern hemisphere, where it is circumpolar up to the warm temperate regions.
In this image, I have only captured the central part of the entire nebula, which is much larger.

 

 

 

Light 193 x 300” filter: Optolong L-Ultimate 
Light 183 x 300” filter: Optolong Astronomy Filter L-Synergy
Light 176 x 20” filter: Optolong L-Qef (stelle RGB)
Camera: Asi 294 mc pro
Telescope: Sky-Watcher 200/1000 PDS
Mount: Skywatcher Eq 6-r Pro
Acquisition: Asiair Plus
Software: DSS - Pixinsight – Photoshop
Shots: 10-13/10/2025 Torricella (TA) ITALY
Average moon phase: 65%
Author: PRO’ GIACOMO

Hope you like it.