Heart and Soul (Nashtok)

Celestial hemisphere: Northern · Constellation: Cassiopeia (Cas) · Contains: IC 1795 · IC 1805 · IC 1848 · NGC 1027 · NGC 896

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Heart and Soul

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Heart and Soul

My first attempt at H-alpha astrophotography!

This is from my white zone apartment with some still pretty serious haze from the Canadian wildfires up north. Nevertheless I was able to cut through it a bit!

After doing flats, there was still some pretty severe differential illumination across the frame - I was able to do a little photoshop trickery to get rid of it, but it left some banding along the top edge of the frame which I'm still working to get rid of.

Original
B
C
Final
D

C

Description: Alright, next version with 10x300s and 10x120s - The skies are no longer filled with smoke so it's that much clearer out.

The uneven illumination is likely from stray light getting into the lens/reflecting off the inside of the hood. I'm still working on getting the hang of correcting this sort of field illumination.

Uploaded: ...

D

Description: Last one (for now at least!)

I figured out how to use the 'subtract' blending option in photoshop on a much more granular level. It isn't as good as avoiding glare in the first place, but I'm happy with it!

Uploaded: ...

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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	1690823
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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Heart and Soul

Heart and Soul

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Heart and Soul

Heart and Soul

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Sky plot

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