Soul and Heart Nebulae (Mark Bailey)

Celestial hemisphere: Northern · Constellation: Cassiopeia (Cas) · Contains: IC 1795 · IC 1805 · IC 1831 · IC 1848 · IC 1871 · NGC 1027 · NGC 896

Powered byPixInsight

Soul and Heart Nebulae

Powered byPixInsight

Soul and Heart Nebulae

This was my first attempt at a mosaic. More difficult than I imagined. It took me an embarrassing amount of time to correlate images I downloaded onsite to my laptop with what I was seeing through the finder scope. Then to try and imagine exactly how the camera orientation related to the finder scope view and how big the camera image area would appear in the view. I was shooting in the dark, pun intended. It was really dark.

I shot four different squares for the mosaic with 12 five minute subs for each square. I tried to combine all of these in a mosaic with DeepSkyStacker but it was too much data and it gave a memory full error. Later as I tried to process each square separately I got a strange and beautiful artifact added by DSS. Tonk from Cloudy Nights suggested, "This is usually caused by an inappropriate star detection threshold picking up both genuine stars and un-removed hot pixels, As stars and hot pixels are not correlated after alignment DSS tries to apply a warping transform to line things up." I never did find the exact source but eventually managed to get a successful stack from DSS for each square which I then stitched together in Photoshop and processed the combined image which is what is uploaded here.

12 calibration frames used each of dark, flats and bias for each of the 4 squares. ISO 1600

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
Artificial satellite

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

AstroBin

AstroBin

Image Index:

Contribution Index (beta):

Soul and Heart Nebulae

Soul and Heart Nebulae

Equipment

Acquisition details

Description

Comments

Sky plot

Histogram

		...
You have no new notifications.

AstroBin

AstroBin

Image Index:

Contribution Index (beta):

Soul and Heart Nebulae

Soul and Heart Nebulae

Equipment

Acquisition details

Description

Comments

Sky plot

Histogram

Notifications

AstroBin is in READ ONLY mode

Sorry :-(

Sorry :-(

Sorry :-(

Are you really sure?

Warning!

Warning!

Are you sure?

Report abuse

Slideshow settings

IOTD/TP stats (last [x] days)

Distribution of astrophotographers

Distribution of subject types

Distribution of data sources

Sorry

Sorry

Share

Upload new revision

Upload uncompressed source (XISF/FITS/PSD/TIFF)

Delete image and all its revisions?

Delete original image?

Delete all other versions?

Delete all revisions?

IOTD/TP stats

The following people like this image

The following people bookmarked this image

Error

Flag malfunctioning thumbnails

Contains

Remove yourself as a collaborator

Plate-solving information