Iris and the Ghost (Christian Koll)

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

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Iris and the Ghost

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Iris and the Ghost

Some say the Iris Nebula in Cepheus reminds them of a flower, however, to me this reflection nebula looks like an eye peeking through a keyhole of interstellar dust. NGC 7023, as it is also called, contains an extremely young star V380 Cep, whose bright blue light is reflected by the surrounding dust.

On the left an extended star forming region, the Cepheus Flare molecular cloud complex, is located. Known as the Ghost Nebula, the peculiar shapes of these nebulae are signs of early stages of star formation.

This is an experiment, combining new luminance data from my QHY600L with old RGB data, taken with my DSLR:

RGB:
Stack of 100 exposures of 4 minutes each at ISO 1600. Taken on July 28th and August 20th 2020 with a Nikon D750.

Luminance:
Stack of 90 exposures of 4 minutes each, taken on August 24th 2022 with a QHY600L camera.

Skywatcher Esprit 100/550 telescope on EQ6-R, Autoguiding with MGEN-3. Processed in Astro Pixel Processor, Starnet2 and Photoshop.

CMOS Imagers
QHYCCD 600M

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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

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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
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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
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Professional, scientific grade data
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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	Basic success
Started	...
Astrometry.net job	6216917
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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Iris and the Ghost

Iris and the Ghost

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Image Index:

Contribution Index (beta):

Iris and the Ghost

Iris and the Ghost

Equipment

Acquisition details

Description

Comments

Sky plot

Histogram

In these public groups

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