The Iris Nebula (Ollie Aplin)

Celestial hemisphere: Northern · Constellation: Cepheus (Cep) · Contains: Iris Nebula · LBN 468 · LBN 475 · LBN 483 · LBN 487 · LBN 495 · LDN 1147 · LDN 1148 · LDN 1152 · LDN 1155 · LDN 1157 · LDN 1158 · LDN 1167 · LDN 1168 · LDN 1170 · LDN 1171 · LDN 1172 · LDN 1173 · LDN 1174 · NGC 7023 · T Cep · VdB139

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The Iris Nebula

Revision title: 6 months later...

Powered byPixInsight

The Iris Nebula

Revision title: 6 months later...

I've been through a few iterations of this image now, I absolutely love this target!

The original was the very first image I processed in PixInsight, stacked in APP. I went back and had another stab at processing it 6 months later but discarded what I thought at the time was some dodgy luminance and opted instead for a synthetic L channel. This year, I collected a further 15h of luminance and restacked the lot using WBPP - I think I'm now finally done and happy!

Original
C
Final
D

C

Title: 6 months later...

Description: Same RGB data but with a synthetic L

Uploaded: ...

D

Title: +24h L

Description: More L, restacked, reprocessed!

Uploaded: ...

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Distribution of astrophotographers

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	Distinct awarded users	Total awarded images
Image of the day
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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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Star trails
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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
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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	7317772
PixInsight job	BEDTVAFB6HWURJBI68CH81PVYSK1HZUC
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	20h53m16s.68
RA (top/left)	21h16m49s.24
RA (top/right)	20h36m22s.84
RA (bottom/right)	20h31m00s.26
RA (bottom/left)	21h07m52s.36

Dec (center)	+68°08′24″.5
Dec (top/left)	+68°40′42″.7
Dec (top/right)	+69°46′35″.2
Dec (bottom/right)	+67°24′14″.1
Dec (bottom/left)	+66°24′33″.6

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The Iris Nebula

Revision title: 6 months later...

The Iris Nebula

Revision title: 6 months later...

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Image Index:

Contribution Index (beta):

The Iris Nebula

Revision title: 6 months later...

The Iris Nebula

Revision title: 6 months later...

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Description

Comments

Revisions

C

D

Sky plot

Histogram

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