Rosette Nebula (Caldwell 49)


Rosette Nebula in Ha Rosette Nebula in Narrowband

Rosette Nebula in HaRGB


Rosette Nebula (Caldwell 49)


Ha: November 24 & 30 2013

SII/OIII: November 29 & 30 2013


Telescope: Takahashi Sky 90II with F/4.5 reducer/flattener

Camera: SBIG ST-10XME w/ CFW10 (Astrodon 3nm Ha, SII, and OIII Filters)

Autoguider: Orion Starshoot

Guidescope: Orion 50mm

Mount: Celestron CG-5 Mount

Exposure Info: Ha: 12 x 900 secondsSII: 10 x 900 secondsOIII: 10 x 900 seconds

Total Exposure Time: 8 Hours


Maxim DL 5.23, Photoshop CS6, Topaz Denoise


This is one of the most beautiful nebula’s I have shot. This shot also contains the following objects:

  • 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

Leave a reply

You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <s> <strike> <strong>