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Contains:  12 Mon, NGC 2239, NGC 2244, NGC2237, NGC2238, NGC2239, NGC2244, NGC2246, Rosette nebula, Sh2-275, The star 12Mon
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The Rosette Nebula (the zoo), 


            Ruben Barbosa
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The Rosette Nebula (the zoo)

Technical card

Blue: 16x300"
Green: 16x300"
H-Alpha: 27x600"
Red: 17x300"

Integration: 8.6 hours job: 3289212

RA center: 6h 31' 4"

DEC center: +5° 1' 49"

Pixel scale: 1.799 arcsec/pixel

Orientation: -179.845 degrees

Field radius: 0.469 degrees

Resolution: 1542x1068


* RGB acquisition: Maicon Germiniani and Leandro Fornazieiro.
* H-Alpha acquisition: Irving Pieters.
* Processing: Ruben Barbosa.

The Rosette Nebula is one of the most wonderful clouds of gas that we can contemplate and its location is propitious to observations from the two hemispheres, being enough binoculars or telescope of small size; as such, is one of the most appreciated by astrophotographers.

This object is also known as Caldwell 49, and is an HII region located near the edge of a giant molecular cloud in the constellation of Monoceros.

The nebula is about 5,200 light-years away from Earth, measuring about 130 light-years across, and its mass has been estimated at 10,000 solar masses. The radiance of the young and warm stars excites the atoms in the nebula, causing the brightness that we observe.

Here we can highlight the following areas:
• NGC 2244 corresponding to the agglomerate open in the darkest central zone and
• Long dark clouds of gas and dust.

See also:



Ruben Barbosa
License: None (All rights reserved)


  • The Rosette Nebula (the zoo), 


            Ruben Barbosa
  • Final
    The Rosette Nebula (the zoo), 


            Ruben Barbosa

Sky plot

Sky plot


The Rosette Nebula (the zoo), 


            Ruben Barbosa