IC434 - Horsehead Nebula (Simon Todd)

Celestial hemisphere: Southern · Constellation: Orion (Ori) · Contains: Horsehead nebula · IC 434 · NGC 2023

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IC434 - Horsehead Nebula

Powered byPixInsight

IC434 - Horsehead Nebula

My first RGB Image from the Qhyccd 183M 20mpx Back Illuminated ColdMOS Camera, I will be writing part 2 of the review soon, so here's what I hope is one of many images taken with this awesome camera

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: IC434 - Horsehead Nebula

Constelation: Orion

Red: 19x300S

Green: 19x300S

Blue: 19x300S

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

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

7. Performed MultiMedianTransformation to reduce background noise

8. Performed SCNR to remove excessive green in image

9. Stretched the image using HistogramTransformation

10. Performed a CurvesTransformation to bring out the star colour

Right now I have not performed any Sharpening of the image, nor have I added the Ha data to this image, I'll post an updated image when I get round to doing that

Please note: The following tables are updated every 24 hours.

Distribution of astrophotographers

This table shows the number of distinct astrophotographers who have been assigned and IOTD/TP award compared to the total number of images awarded.
	Distinct awarded users	Total awarded images
Image of the day
Top picks
Top pick nominations

Distribution of subject types

This table shows the distribution of awards per subject type, compared to the popularity of images of that subject type.
	Image of the day	Top pick	Top pick nominations	Total submitted
Deep sky
Solar system
Extremely wide field
Star trails
Northern lights
Noctilucent clouds
Landscape

Distribution of data sources

This table shows the distribution of awards per data source, compared to the popularity of images acquired from that data source.
	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

The “AstroBin Image of the Day and Top Picks”, or IOTD/TP, is a long-running system to promote beautiful, interesting, peculiar, or otherwise amazing astrophotographs, with a focus on technical excellence. Learn more.

Submitted The date and time when you submitted this image for IOTD/TP consideration.	...
Views by Submitters (available since September 19th, 2023) Every image is assigned to 50% of available Submitters. In the event that at least 80% of them don't view the image before its time in the IOTD/TP process expires, it's assigned to the other 50% of Submitters and the process begins anew.
Promotions by Submitters When 3 distinct Submitters promote the image, it moves on to the next stage of the process: evaluation for Top Pick status. This requirement, in addition to anonymization of images and distribution to only a subset of them, prevents biases and ensures that the best images are selected.
Promotions by Reviewers When 3 distinct Reviewers promote the image, it moves on to the next stage of the process: evaluation for IOTD status.
Early dismissal Staff members have a lot of images to inspect on a daily basis, and they can dismiss images if they believe they don't meet the requirements for IOTD/TP selection. If an image is dismissed 5 times, it's removed from the process. This streamlines the process and ensures that any bias present in promotions could be overruled by other staff members.

Status	Basic success
Started	...
Astrometry.net job	1953454
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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Contribution Index (beta):

IC434 - Horsehead Nebula

IC434 - Horsehead Nebula

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Image Index:

Contribution Index (beta):

IC434 - Horsehead Nebula

IC434 - Horsehead Nebula

Equipment

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Description

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