Community Work: The Rosette Nebula

rosette nebula community work

The Rosette Nebula observed and processed by the Telescope Live Community

The Rosette Nebula (also known as Caldwell 49) is an H II region located near one end of a giant molecular cloud in the Monoceros region of the Milky Way Galaxy.

The open cluster NGC 2244 (Caldwell 50) is closely associated with the nebulosity, the stars of the cluster having been formed from the nebula's matter.

The complex has the following New General Catalogue (NGC) designations:
- NGC 2237 – Part of the nebulous region (Also used to denote whole nebula)
- NGC 2238 – Part of the nebulous region
- NGC 2239 – Part of the nebulous region (Discovered by John Herschel)
- NGC 2244 – The open cluster within the nebula (Discovered by John Flamsteed in 1690)
- NGC 2246 – Part of the nebulous region

The cluster and nebula lie at a distance of 5,000 light-years from Earth) and measure roughly 130 light years in diameter.

The radiation from the young stars excites the atoms in the nebula, causing them to emit radiation themselves producing the emission nebula we see.

The mass of the nebula is estimated to be around 10,000 solar masses.

Rosette Nebula Acquired via Advanced Request

The Rosette Nebula in HOO Palette by Sean Richardson

The Rosette Nebula by Sean Richardson

Acquisition: Advanced Request
Telescope: CHI-2
Filters: Ha, OIII
Processing: Pixinsight, Photoshop

Ha: 600s x 4
OIII: 600s x 4

Total Exposure Time: 80 mins

Rosette Nebula by Mathew Browne

Rosette Nebula by Mathew Browne

Acquisition:Advanced Request
Telescope:CHI-2
Filters: 3x600s in H Alpha, SII and OII⠀
Processing: Pixinsight, Photoshop, Skylum Luminar 4

"I captured the data remotely from a Chilean telescope a few nights ago, with which this stunning scene can be interpreted." Mathew Browne

Rosette Nebula B/W by MODESTO GABRIELI FRANCESCATO

Rosette Nebula B/W by MODESTO GABRIELI FRANCESCATO

Acquisition:Advanced Request
Telescope: SPA-3
Filters: H-alfa, SII, OIII (5 exposures of 180s for each filter)
Processing: Pixinsight

Rosette Nebula in HOO by Daniel Howard

Rosette Nebula in HOO by Daniel Howard

Acquisition:Advanced Request
Telescope: SPA-1
Filters: Ha and OIII
Processing: Photoshop

Rosette Nebula by Matthew Deroche

Rosette Nebula by Matthew Deroche
Rosette Nebula by Matthew Deroche

Acquisition: Advanced Request
Telescope: CHI-1
Filters: Ha, OIII, SII
Processing: Deep Sky Stacker and Photoshop

Rosette Nebula Custom and HTS Palette by Kate Nambiar

Rosette Nebula Custom Palette by Kate Nambiar
Rosette Nebula HTS Palette by Kate Nambiar

Acquisition: Pro Dataset Observaton
Telescope: ASA 500N (CHI-4)
Filters: HSO
Processing: PixInsight, Adobe Lightroom

This image of the Rosette Nebula (Caldwell 49) and open cluster NGC 2244 is rendered using a custom palette (main picture) and also a more typical HST palette.

Rosette Nebula by Nik Szymanek (including Pro Dataset and Video Tutorial)

Rosette Nebula by Nik Szymanek

Acquisition: Advanced Request
Telescope: ASA 500N (CHI-4)
Filters: Astrodon 3nm narrowband
Processing: Maxim DL, Photoshop, PixInsight

SHO narrowband image using high-quality data acquired with CHI-4.
4 x 600s exposures per filter.

You can download the data from this observation from our Pro Dataset Section.

Nik also created an associated tutorial for how this image was produced.

Rosette Nebula Narrowband - Processing Workflow Tutorial by Nik Szymanek

 In this tutorial, Nik Szymanek walks us through the image processing of the Rosette Nebula, using images obtained from CHI-4. The associated images are available as a Pro Dataset and can be downloaded below. 

by Nik Szymanek | 1 video | 0h 35m | Level: PremiumSoftware used: MaximDL, FITS Liberator, Photoshop

Rosette Nebula Acquired via Pro Dataset Observation

Rosette Nebula HOO by Marco Simonetto

Rosette Nebula HOO by Marco Simonetto
Rosette Nebula HOO in Hubble Palette by Marco Simonetto

Acquisition: Pro Dataset Observaton
Telescope: ASA 500N (CHI-4)
Filters: Astrodon 3nm narrowband
Processing: Pixinsight, Affinity Photo

Rosette Nebula in HST Palette by John Ebersole

Rosette Nebula by John Ebersole

Acquisition: Pro Dataset Observaton
Telescope: ASA 500N (CHI-4)
Filters: SHO
Processing: Maxim DL, Photoshop, Starnet-win

First SHO Rosette Nebula by Jarmo Ruuth

First SHO Rosette Nebula by Jarmo Ruuth

Acquisition: Pro Dataset Observaton
Telescope: ASA 500N (CHI-4)
Filters: SHO
Processing: Maxim DL, Photoshop, Starnet-win

"I just downloaded a few data sets. Rosette Nebula has always been one of my favourites so I wanted to post this right away as I was really happy with the result. Data quality is great. I am sure image can be improved but wanted to start with this." Jarmo Ruuth

Rosette Nebula in SHO by Philip Yates

Rosette Nebula in SHO by Philip Yates

Acquisition: Pro Dataset Observaton
Telescope: ASA 500N (CHI-4)
Filters: SHO
Processing: Pixinsight and Photoshop

Rosette Nebula Narrowband SHO by Jim DeLillo

Rosette Nebula Narrowband SHO by Jim DeLillo

Acquisition: Pro Dataset Observaton
Telescope: ASA 500N (CHI-4)
Filters: SHO
Processing: PixInsight, LightRoom

Rosette Nebula by David Collier

Rosette Nebula by David Collier

Acquisition: Pro Dataset Observaton
Telescope: ASA 500N (CHI-4)
Filters: SII, Ha, OIII
Processing: AstroPixel Processor 1.08 StarTools 1.7

Rosette Nebula by Brian Knott

Rosette Nebula by Brian Knott

Acquisition: Pro Dataset Observaton
Telescope: ASA 500N (CHI-4)
Filters: HSO
Processing: Pixinsight Photoshop

Rosette Nebula by Amal BIJU

Rosette Nebula by Amal BIJU

Acquisition: Pro Dataset Observaton
Telescope: ASA 500N (CHI-4)
Filters: HSO
Processing: Photoshop

Rosette Nebula by Reggie Jones

Rosette Nebula by Reggie Jones

Acquisition: Pro Dataset Observaton
Telescope: ASA 500N (CHI-4)
Filters: Ha SII OIII
Processing: PixInsight

Rosette Nebula by MEHMET HAKAN ÖZSARAÇ

Rosette Nebula by MEHMET HAKAN ÖZSARAÇ

Acquisition: Pro Dataset Observaton
Telescope: ASA 500N (CHI-4)
Filters: HSO
Processing: Pixinsight, Photoshop

Rosette Nebula SHO by Jan Scheers

Rosette Nebula SHO by Jan Scheers

Acquisition: Pro Dataset Observaton
Telescope: ASA 500N (CHI-4)
Filters: HSO
Processing: AstroPixelProcessor, Photoshop CC (incl. AstroPanel 4.2, Astronomy Tools & Denoise Projects 3 plug-ins)

Rosette Nebula Acquired via One-Click Observation

Rosette Nebula Widefield by Jim DeLillo

Rosette Nebula Widefield by Jim DeLillo

Acquisition: One Click Observation
Telescope: SPA-1
Filters: 3 frames only HA,SII, OIII
Processing: PixInsight, LightRoom, Photoshop

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