Queen of Hearts (Todd Stephens)

Queen of Hearts

5-panel hydrogen-alpha mosaic of the region from the Heart Nebula through Queen Cassiopeia. It could have been done in four, but I messed up the rotation of one of the panels and had to shoot a "filler" panel. This was done with my mono-converted Canon 60D, Rokinon 135mm f/2 lens, iExos-100 mount, and Astronomik 6-nm H-a clip filter.

The 60D has a decent amount of banding, which led to a truly messed up workflow. Each panel was stacked in APP with gradients removed, then into PixInsight for a pass of the Canon Banding Removal script. Then into StarTools for deconvolution, back to APP for the mosaic, and then finished in PixInsight. Although I did bring the star layer back into StarTools to try to repair the stars (they get really wonky in the corners with the filter). Finally did a bit of an artistic touch in GIMP to add a blur to the bright stars in Cassiopeia to try to show the constellation a bit more clearly among the extended nebulosity.

Hope you like it! Maybe I can get OIII data next season.

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	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
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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.
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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 failed
Started	...
Astrometry.net job	6399352
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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