Iris Nebula (NGC7023 / C4) and IFN (emich)

Celestial hemisphere: Northern · Constellation: Cepheus (Cep) · Contains: Iris Nebula · NGC 7023 · The star 4Cep

Iris Nebula (NGC7023 / C4) and IFN, emich

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Iris Nebula (NGC7023 / C4) and IFN

Link: https://instagram.com/emichbe

Powered byPixInsight

Iris Nebula (NGC7023 / C4) and IFN

Link: https://instagram.com/emichbe

The Iris nebula is a reflection nebula in the constellation of Cepheus. It is located 1200 light years away and is about 20 light years in width.

What I really like about this part of the night sky is how it is surrounded by integrated flux nebula clouds, commonly referred to as "IFN". Unlike reflection nebulae, which reflect the light of a nearby bright star, integrated flux nebulae are illuminated by the energy of the integrated flux of the Milky Way. They make up for a cool visual effect. These clouds are made out of dust particles, hydrogen, carbon monoxide and other elements. IFN is a fairly recent discovery. (Wikipedia) IFN has a great potential to become my next obsession in the night sky. Even the Northern Star and the Pleiades have them!

I feel like I've made some progress lately with processing. I used luminosity masks, noise reduction, star reduction and many other things I didn't even know how to use about a month ago! My only regret is that the core is maybe a bit overblown, but I can live with that.

Equipment: -
Telescope: William Optics GT81
- Camera: Canon EOS Ra
- Mount: SkyWatcher H-EQ5
- Guide camera: ZWO ASI120MM

Integration:
- Light frames: 65x180s (ISO3200)
- Dark frames: 40x180s (ISO3200)
- 30 flat frames
- 40 bias frames
- Total integration time: 5h15m

Software:
- Capturing: ASIAIR Pro
- Processing: PixInsight
- Polishing: Adobe Lightroom CC

Location:
- Mendocino Magic
- Lake Sonoma
- Both are Bortle 3 skies

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

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	...
Astrometry.net job	5077536
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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Iris Nebula (NGC7023 / C4) and IFN

Iris Nebula (NGC7023 / C4) and IFN

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Image Index:

Contribution Index (beta):

Iris Nebula (NGC7023 / C4) and IFN

Iris Nebula (NGC7023 / C4) and IFN

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