Observation by Richard Francis: First light: the Rosette Nebula

Uploaded by

Richard Francis

Observer

Richard Francis

Observed

2019 Feb 20 - 00:12

Uploaded

2024 Mar 14 - 00:20

Objects

NGC2244

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Constellation

Monoceros

Field centre

RA: 06^h31^m
Dec: +04°56'
Position angle: -1°36'

Field size

1°04' × 1°04'

Equipment

FLI Kepler 4040
Officina Stellare UCRC360
Paramount MEII

Exposure

SHO ~15x 600s each

Location

La Romieu, SW France

Target name

Rosette Nebula

Title

First light: the Rosette Nebula

About this image

This image is the “first light” image for our Kepler KL4040 sCMOS camera. It takes some getting used to, as it delivers two images for each frame, with high and low gain. There is quite a steep learning curve with lots of experimentation in processing techniques. But as a first light mage, this shows that one can get good results pretty quickly.

The Rosette Nebula in Monoceros is a stellar nursery, where new stars are born from the gas and dust of the nebula. The cluster NGC 2244, at the centre of the image, consists of stars only a few million years old, but their powerful stellar winds have cleared the central region of the nebula, a cavity estimated to be about 50 light-years across. The nebula is about 130 light-years across and is about 5200 light-year from Earth. It is catalogued with several entries in the New General Catalogue (NGC), published in 1888. This demonstrates that the optical observations on which the catalogue was based were unable to reveal the full structure of this nebula, which is almost 3 times the diameter of the full moon in the sky.

Files associated with this observation

NGC2244_Rosette_Nebula_SHO-RGB_Stars_2Mb.jpg (1.8 MB)

Like this image

Simon Paul Davis, Ian Jarrett, Andy Wilson, Callum Potter, Callum Wingrove, Mike Foulkes, Martina McGovern

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