Rosette Nebula

Rosette Nebula – NGC 2244

In Astrophotography by Matt Shetzer

Rosette Nebula

Click image for detailed view

The Rosette Nebula cluster lies 5,000 light-years from Earth and is roughly 130 light years in diameter. The radiation from the young stars in this nebula excites the atoms in the nebula causing them to emit radiation that produces the nebula we see today.

I decided to image the nebula in the palette of SHO (Sulphur II, Hydrogen Alpha and Oxygen II) to showcase the different emissions of this beautiful nebula. The channels SHO were assigned to RGB channels.

Recent surveys of the nebula have revealed the presence of numerous new-born stars inside the Rosette Nebula and its dense molecular cloud.

ObjectRosette Nebula
Wiki Link
Other Names contained in imageCaldwell 49, NGC 2244
Imaging telescopes or lensesTakahashi FSQ -106ED4
Imaging camerasQHY268M
MountsSoftware Bisque Paramount MYT
Focal reducersNone
SoftwareSoftware Bisque The Sky X, PHD Lab PHD2, NINA, Viking,  PixInsight, Photoshop, Lightroom
FiltersAstrodon LRGB Gen2 E-Series Tru-Balance  36mm unmounted. Chroma Technology Narrowband 3nm Ha, SII, OIII – 36mm Unmounted
AccessoriesMoonlite NightCrawler 35 focuser, Maxdome II, Digital Loggers Pro Switch, Sky Alert Weather Station, Pegagsus Ultimate Powerbox v2, Starlight Xpress filter wheel.
Guiding Telescope or LensesOrion 60mm Guide Scope
Guiding CameraZWO ASI224MC Guide Camera
Imaging Dates1/28/22, 1/29/22, 2/3/22,2/4/22,2/7/22
FramesHa: 16×1200″ (5.3h) Gain 60, High Gain Mode, Temp -25C, Bin 1×1
OII: 12×1200″ (4h) Gain 60, High Gain Mode, Temp -25C, Bin 1×1
SIII: 7×1200″ (2.3h) Gain 60, High Gain Mode, Temp -25C, Bin 1×1
Integration11h 40′
Flats20 per Filter
Flat Darks40
Bortle Dark-Sky Scale:2
RA center06 31 54.974
DEC center04 56 44.90
Pixel scale3.76
Resolution6280 x 4210
LocationsSirus 3.5m Observatory, Carbondale Colorado
Data sourceBackyard
Post Processing TechniquesPixInsight to Photoshop to Lightroom
Median FWHM PixelsHa 2.467, Oiii 2.758, Sii 2.821


Rosette Nebula – NGC 2244 was last modified: January 23rd, 2023 by Matt Shetzer