NGC 2244 Rosette Nebula

From Wikipedia, the free encyclopedia. NGC 2244 (also known as Caldwell 50 or the Satellite Cluster) is an open cluster in the Rosette Nebula, which is located in the constellation Monoceros. This cluster has several O-type stars, super hot stars that generate large amounts of radiation and stellar wind.

The age of this cluster has been estimated to be less than 5 million years. The brightest star in the cluster is 12 Monocerotis, a foreground K-class giant. The two brightest members of the cluster are HD 46223 of spectral class O4V, 400,000 times brighter than the Sun, and approximately 50 times more massive, and HD 46150, whose spectral type is O5V, has a luminosity 450,000 time larger than that of our star, and is up to 60 times more massive, but it may actually be a double star.[5]

Image below has no Bias, Darks, or Flats. Only a very few Ha, Oii and Sii frames to produce this image. The clouds for December did not ease so no extra data was collected, this will now be updated in 2022 as and when clear skies are forthcoming. Updated 04/02/2022 version has now had darks,bias, flats and more Ha data added. You can know see the clear difference in more data gives a better image.

NGC2244 Rosette Nebula, full image here
Rosette Nebula Revised 04/02/2022 More Ha data added to enhance detail, Full image here


Imaging Telescopes Or LensesWilliam Optics 81GT IVI
maging CamerasZWO ASI 6200 MM
ProFiltersZWO SII 7nm 2″ · ZWO OIII 7nm 2″ · ZWO H-alpha 7nm 2″
SoftwareAdobe Photoshop 2021 · PixInsight 1.8 Ripley PinInsight 1.8.8
Guiding Telescopes Or LensesWilliam Optics RedCat 51 Petzval APO Redcat 51
Guiding CamerasZWO ASI522mc-pro color ZWO

 Acquisition details

Dates:Nov. 11, 2021
ZWO H-alpha 7nm 2″: 62×300″ (1h) (gain: 135.00) -15C bin 1×1
ZWO OIII 7nm 2″: 18×300″ (1h 30′) (gain: 135.00) -15C bin 1×1
ZWO SII 7nm 2″: 6×300″ (30′) (gain: 135.00) -15C bin 1×1
Integration:7h 10`
Avg. Moon age:7.35 daysAvg.
Moon phase:49.61%

RA center: 06h33m15s.23
DEC center: +05°0140.7
Pixel scale: 4.032 arcsec/pixel
Orientation: -177.919 degrees
Field radius: 2.005 degrees
WCS transformation: thin plate spline
 Resolution: 3124×1743
Locations: Gamaholjad, Fareham, United Kingdom
Data source: Backyard

Ha Data 62*300s, stacked in Pixinsight
Sky Plot