IC 3568 (Gary Imm)

Celestial hemisphere: Northern · Constellation: Camelopardalis (Cam) · Contains: IC 3568

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IC 3568

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IC 3568

This object is a tiny planetary nebula located in the northern constellation of Camelopardalis, less than 8 degrees from Polaris. Distance estimates for this object vary widely, from 3,000 to 10,000 light years. It has an estimated diameter of less than half a light year. The visual diameter to us of 20 minutes is one-tenth the diameter of the M57 ring nebula, itself a small object.

The nebula appears to be dominantly blue in color in my RGB image. Unlike many planetary nebulae, this one does not have any apparent filamentary structure within it. The central star is visible, surrounded by two concentric shells - a bright inner shell, and a dimmer outer shell. Both of these shells appear to be almost perfectly spherical in shape.

I also took a significant amount of narrowband subs but they really adding nothing to the overall image, so I left them out in order to maintain a truer color image. I normally like to have regular routines for all of my processing, but for planetary nebula I have not found a consistent approach. For some planetary nebulae, especially those with intricate inner structures, narrowband is useful to add detail. But for others, like this one, the extra effort to obtain narrowband subs is not worth it.

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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	Advanced success
Started	...
Astrometry.net job	1962515
PixInsight job	MJXZBOKUAXGYMISTG9L7B2JMC9L5ILJX
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	12h33m07s.598
RA (top/left)	12h31m28s.126
RA (top/right)	12h30m49s.988
RA (bottom/right)	12h34m44s.610
RA (bottom/left)	12h35m31s.621

Dec (center)	+82°33′50″.10
Dec (top/left)	+82°41′07″.18
Dec (top/right)	+82°27′16″.38
Dec (bottom/right)	+82°26′31″.60
Dec (bottom/left)	+82°40′18″.89

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IC 3568

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