M97 / NGC3587 - Owl Nebula in HaRGB (Simon Todd)

M97 / NGC3587 - Owl Nebula in HaRGB

I have imaged this before in the same frame as the Surfboard Galaxy, however the 0.62 Arcseconds Per Pixel the Qhyccd 183M gives me on my Sky-Watcher Quattro 8" F4 gives me a much higher resolution image, so here it is, the Owl Nebula in the constellation of Ursa Major at a distance of 2030 Light years from Earth

Gear:

Imaging Scope: Sky-Watcher Quattro 8" F4 Imaging Newtonian

Imaging Camera: Qhyccd 183M 20mpx ColdMOS Camera at -20C and DSO Gain

Mount: Sky-Watcher EQ8 Pro

Guide Camera: Qhyccd QHY5L-II Mono

Guide Scope: Sky-Watcher 50x90 Finder Scope

Filter Wheel: Starlight Xpress Ltd 7x36mm EFW

Filters: Baader Planetarium 36mm RGB

Coma Corrector: Sky-Watcher Aplanatic Coma Corrector

Image Acquisition: Main Sequence Software SGPro

Image Processing: PixInsight

Image Details:

Target: M97/NGC3587 - Owl Nebula

Constelation: Ursa Major

Red: 27x300S

Green: 27x300S

Blue: 27x300S

Ha: 25x600S

Darks: 51x300S

Flats: 101

Bias: 251 converted to SuperBIAS and deducted from Flats

PixInsight Image processing workflow:

1. Calibrated against darks and Bias Subtracted Flats

2. Star Alignment for all RGB and Ha Frames

3. Least noise frame from each colour chosen as Normalization Frame and Dynamic Background Extraction Performed

4. Normalization of all frames

5. Stacking of frames and generation of drizle data (for larger quality image in future)

6. Performed LinearFit using Red stacked image as reference for RGB Frames

7. Performed DynamicCrop on all channels and Ha

8. Performed MultiMedianTransformation to reduce background noise

9. Performed SCNR to remove excessive green in image

10. Stretched the image using HistogramTransformation

11. Performed an Unsharp Mask on RGB and HA Data

12. Performed an ATWT on the Background

11. Merged the Ha Data using the HaRVB-AIP Script in PixInsight

12. Performed a CurvesTransformation to bring out the star colour

	Distinct awarded users	Total awarded images
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	Image of the day	Top pick	Top pick nominations	Total submitted
Deep sky
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Star trails
Northern lights
Noctilucent clouds
Landscape

	Image of the day	Top pick	Top pick nominations	Total submitted
Backyard
Traveller
Own remote observatory
Amateur hosting facility
Public amaeteur data
Professional, scientific grade data
Mix of multiple sources
Other
Unknown

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Status	Basic success
Started	...
Astrometry.net job	1953457
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

Image Index:

Contribution Index (beta):

M97 / NGC3587 - Owl Nebula in HaRGB

M97 / NGC3587 - Owl Nebula in HaRGB

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Image Index:

Contribution Index (beta):

M97 / NGC3587 - Owl Nebula in HaRGB

M97 / NGC3587 - Owl Nebula in HaRGB

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Description

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