California Nebula (16-panel Ha Mosaic) (George Chappel)

Celestial hemisphere: Northern · Constellation: Perseus (Per) · Contains: 46 Per) · 46 ksi Per · California Nebula · IC 2005 · IC 2027 · LBN 752 · LBN 756 · LDN 1449 · LDN 1456 · LDN 1462 · LDN 1463 · LDN 1464 · LDN 1469 · Menkib · NGC 1499 · Sh2-220 · The star Menkib (ξ Per

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California Nebula (16-panel Ha Mosaic)

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California Nebula (16-panel Ha Mosaic)

This was the first project I tackled after receiving my Astro-Physics AP1100GTO-AE. While the mount is amazing, I got a little crazy and thought it would be fun to do a 16-panel mosaic of the California Nebula. The subframes were captured on 15 nights spread across an almost 7-week period, which ultimately made it tricky to control the gradients present on the 16 panels. I originally processed the panels with PhotometricMosaic, but was unhappy with the final image due to the gradients. I then processed the panels with GradientMergeMosaic and was a little happier with the final product. Fortunately, I'm now imaging with a full-frame sensor, so hopefully this will be my one and only 16-panel mosaic.

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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.
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Status	Advanced success
Started	...
Astrometry.net job	6993975
PixInsight job	2F0AOM31PWJDX9GGFBVGK15L3XJ18B8Q
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	04h02m31s.14
RA (top/left)	04h11m56s.79
RA (top/right)	03h53m13s.41
RA (bottom/right)	03h53m25s.50
RA (bottom/left)	04h11m28s.75

Dec (center)	+36°13′31″.6
Dec (top/left)	+37°37′22″.8
Dec (top/right)	+37°39′08″.5
Dec (bottom/right)	+34°47′23″.9
Dec (bottom/left)	+34°45′21″.3

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California Nebula (16-panel Ha Mosaic)

California Nebula (16-panel Ha Mosaic)

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Image Index:

Contribution Index (beta):

California Nebula (16-panel Ha Mosaic)

California Nebula (16-panel Ha Mosaic)

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