The Ghost of Cassiopeia (pcyvr)

Celestial hemisphere: Northern · Constellation: Cassiopeia (Cas) · Contains: 27 Cas) · 27 gam Cas · HD236578 · HD236592 · HD236612 · HD236630 · HD236633 · HD236639 · HD236655 · HD4854 · HD4931 · HD5015 · HD5071 · HD5149 · HD5211 · HD5342 · HD5408 · HD5409 · HD5410 · HD5429 · HD5459 · HD5501 · HD5513 · HD5747 · HD5777 · HD5787 · HD5797 · HD5851 · HD5890 · HD6017 · And 26 more.

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The Ghost of Cassiopeia

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The Ghost of Cassiopeia

The Ghost of Cassiopeia. Following a prompt from @Daniel Erickson, I decided to give this a try. It's a tough one! I ended up having to throw away a large number of subs due to high cloud which resulted in a significant halo around γ-Cas. There was still a fair bit of work to do to tame the halo. This is an integration of broadband stars (L-Pro filter) and a narrowband starless image (Antlia ALP-T). Once again I used a gain of 0 for the broadband image and this seems to have worked well. It could do with more integration time, especially with the narrowband filter, but the very changeable weather has proved challenging!

Original
Final
B

B

Description: Increased the brightness of the starless component.

Uploaded: ...

Optolong L-Pro filter
Pacific Northwest Astrophotographers
Antlia ALP-T 5nm Dual Narrowband Filter

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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
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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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Extremely wide field
Star trails
Northern lights
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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.
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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	Advanced success
Started	...
Astrometry.net job	6793420
PixInsight job	GHJ5OHA5XSOMJGR24OUZ1QTBOXUG3TKY
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	01h03m49s.80
RA (top/left)	01h16m35s.12
RA (top/right)	00h51m07s.69
RA (bottom/right)	00h51m47s.98
RA (bottom/left)	01h15m44s.49

Dec (center)	+60°34′55″.3
Dec (top/left)	+61°33′15″.5
Dec (top/right)	+61°34′17″.2
Dec (bottom/right)	+59°32′26″.10
Dec (bottom/left)	+59°31′24″.8

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The Ghost of Cassiopeia

The Ghost of Cassiopeia

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Image Index:

Contribution Index (beta):

The Ghost of Cassiopeia

The Ghost of Cassiopeia

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Description

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B

Sky plot

Histogram

In these public groups

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