This Butterfly has a Propeller “annotated view” (Terry Hancock)

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This Butterfly has a Propeller “annotated view”

This image forms part of a mosaic that I acquired last season which I decided to review for a number of reasons but mainly as I am using a different technique to eliminate the typical salmon pink when H-Alpha is added to an RGB image particularly if used as a luminance layer. I also hope to further enhance the mosaic by using OIII and SII filters this season provided the weather and my health cooperate.

I created my own annotated view you can see here.

This first of 4 images to my newly processed mosaic I am releasing is that of this area which includes part of The Gamma Cygni Nebula IC1318A (LBN 251) a diffuse emission nebula (bottom right) and LBN239 combined is otherwise known as The Butterfly Nebula. DWB-111 (bottom left) otherwise known as The Propeller Nebula.

NGC 6866 (top left) open star cluster

IC 1311 (middle right) open star cluster

LBN 243 (to the right of centre) emission nebula

Captured using LRGB + H-Alpha filters

Total Exposure time 4+ hours

Equipment

QHY11S monochrome CCD cooled to -20C

QHY5IIL Monochrome Guiding CCD

Takahashi E-180 F2.8 Astrograph

Paramount GT-1100S Robotic Telescope Mount

Image Acquisition Maxim DL

Stacking and Calibrating: CCDStack

Registration of images in Registar

Post Processing Photoshop CS5

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	Distinct awarded users	Total awarded images
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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
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Star trails
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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
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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.
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PixInsight job	n/a
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This Butterfly has a Propeller “annotated view”

This Butterfly has a Propeller “annotated view”

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This Butterfly has a Propeller “annotated view”

This Butterfly has a Propeller “annotated view”

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