The Dumbbell Nebula, also known as the Apple Core Nebula, Messier 27, and NGC 6853, is a planetary nebula located in the constellation Vulpecula, approximately 1,360 light-years away. Discovered by Charles Messier in 1764, it holds the distinction of being the first planetary nebula ever identified. With a visual magnitude of 7.5 and a diameter of about 8 arcminutes, it is easily visible through binoculars and is a popular target for amateur astronomers using telescopes.

Object: M27

Location: Portsmouth, UK

Mount: Alt Az

Bortle Scale: 7

Nights:       25th May, 16 & 17th July 2024

Total Subs Used: 952 x 10 Subs

Seeing:  Clear

Fits Stacked: Siril

Post-Processing Steps

1. GraXpert - Background extraction and Denoise v2.0 

2. Siril - colour calibration, photometric colour calibration, removing green noise, GHST, colour saturation.

3. Lightroom

The Dumbbell Nebula, also known as the Apple Core Nebula, Messier 27, and NGC 6853, is a planetary nebula located in the constellation Vulpecula, approximately 1,360 light-years away. Discovered by Charles Messier in 1764, it holds the distinction of being the first planetary nebula ever identified. With a visual magnitude of 7.5 and a diameter of about 8 arcminutes, it is easily visible through binoculars and is a popular target for amateur astronomers using telescopes.

Object: M27

Location: Portsmouth, UK

Mount: Alt Az

Bortle Scale: 7

Total Session Time: 10 Minutes

Nights:       25th May 2024

Total Subs Used: 64 x 10 Subs

Seeing:  High Cloud

Fits Stacked: Siril

Post-Processing Steps

1. GraXpert - Background extraction and Denoise v2.0 

2. Siril - colour calibration, photometric colour calibration, removing green noise, colour calibration, histogram stretch, colour saturation.

Doubled the subs.  Played around with colours, and saturation levels in Siril and Light room.

Object: M27

Location: Portsmouth, UK

Mount: Alt Az

Bortle Scale: 7

Nights:     Various nights in July 2024

Total Subs Used: 1819 x 10 Subs

Seeing:          Clear

Fits Stacked: Siril

Post-Processing Steps

1. GraXpert - Background extraction and Denoise v2.0 

2. Siril - colour calibration, photometric colour calibration, removing green noise, colour calibration, histogram stretch, colour saturation.

3. Lightroom