The Rosetta Nebula + Giacomo Pro + L-Para (L-Parallels)

The Rosetta Nebula

Creidit:  Giacomo Pro (Italy)

Filter: Optolong L-Para (L-Parallels) filter

 

 

 

The Rosetta Nebula
Also known by its catalogue abbreviations NGC 2237 and C 49, it is a large, roughly circular H II region located at the edge of a giant molecular cloud in the constellation Unicorn.
The nebula has an angular diameter of 1.3° and lies at a distance of about 5200 light years from the solar system; it has an approximate size of 100 light years.
At the centre of the Rosetta Nebula is a brilliant open cluster, known as NGC 2244; the blue stars in the cluster emit ultraviolet radiation, which excites the gas in the nebula to emit red light. The stellar wind from the O and B cluster is thought to exert pressure on the interstellar cloud causing compression, followed by star formation; in fact, many Bok globules have been observed in the region, believed to be the site of star formation.
The location of the nebula is easy to spot, thanks to the presence of some of the brightest stars in the sky: Betelgeuse and Procyon; joining the former to the latter with an imaginary line, the Rosetta Nebula is found stopping about a third of the way across and moving about one and a half degrees south.
The Rosetta Nebula is one of the brightest nebulae in the night sky and astrophotography undoubtedly provides the greatest satisfaction, as both the nebula and most of the structures are perfectly revealed in photos; it is no coincidence that it is one of the most photographed objects in the sky.

 

 

 

 

Light 130 x 300’
Filter: Optolong Astronomy Filter L-Para
Camera: Asi 294 mc pro
Telescope: Sharpstar 94 EDPH reduced to 410 mm F/4.4
Guide camera: Asi 120 mini
Guide scope: 60 - 320 mm
Mount: Skywatcher Eq 6-r Pro
Acquisition: Asiair Plus
Software: DSS - Pixinsight - Photoshop
Shots: 04-05-19/02/2025
Location: Torricella (TA) ITALY
Average moon phase: 52%.
Author: PRO' GIACOMO.

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