Hemisphere:  Northern  ·  Constellation: Monoceros (Mon)  ·  Contains:  NGC 2239  ·  NGC 2246  ·  Rosette B  ·  The star 12Mon
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NGC 2244 - The Rosette Nebula, 



    
        

            Nathan
NGC 2244 - The Rosette Nebula
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NGC 2244 - The Rosette Nebula

Getting plate-solving status, please wait...
NGC 2244 - The Rosette Nebula, 



    
        

            Nathan
NGC 2244 - The Rosette Nebula
Powered byPixInsight

NGC 2244 - The Rosette Nebula

Technical card

Imaging telescopes or lenses: Williams Optics Zenithstar 81 APO

Imaging cameras: ZWO ASI178MM

Mounts: Sky-Watcher EQM-35 Pro

Guiding telescopes or lenses: ZWO Mini Guide Scope

Guiding cameras: ZWO ASI120 MM mini

Focal reducers: William Optics Flat61

Software: PixInsight 1.8.5 Ripley Pixinsight

Filters: Astrononomik S2 6nm  ·  Astrononomik O3 6nm  ·  Astrononomik Ha 6nm

Accessory: ZWO EAF Electronic Auto Focuser  ·  ZWO 8x 1.25" Filter Wheel (EFW)


Dates:Jan. 29, 2021

Frames:
Astrononomik Ha 6nm: 30x180" (1h 30') (gain: 150.00) bin 1x1
Astrononomik O3 6nm: 30x180" (1h 30') (gain: 150.00) bin 1x1
Astrononomik S2 6nm: 90x180" (4h 30') (gain: 150.00) bin 1x1

Integration: 7h 30'

Darks: ~30

Flats: ~30

Bias: ~30

Avg. Moon age: 15.48 days

Avg. Moon phase: 99.43%

Bortle Dark-Sky Scale: 5.00

Temperature: 2.00


Basic astrometry details

Astrometry.net job: 4191558

RA center: 6h 32' 11"

DEC center: +4° 52' 4"

Pixel scale: 1.112 arcsec/pixel

Orientation: 80.915 degrees

Field radius: 0.548 degrees


Resolution: 3004x1888

Locations: Home observatory, Fishers, IN, United States

Data source: Backyard

Description

A narrowband image of the Rosette Nebula taken from my back yard. Imaged for about 8 hours during a single session.

PixInsight Workflow

- Calibration and alignment with WeightedBatchPreprocessing

- ChannelCombination for SHO -> RGB

- Image stretched with HistogramTransformation

- Ran AutomaticBackgroundExtraction

- Created color masks for magenta, green, and cyan

- CurvesTransformations for each mask, adjusting colors to taste. Reds down in magenta, blues up in cyan, green down in green. Increased luminance where it was low.

- Created luminance mask from Hydrogen Alpha master

- Ran Convolution on main image to blur prior to Ha luminance masking

- LRGB Combination with Ha luminance mask on main image

- CurvesTransformations on main image, adjusting colors to taste

Comments

Sky plot

Sky plot

Histogram

NGC 2244 - The Rosette Nebula, 



    
        

            Nathan