CEDERBLAD 214 (Drew Evans)

Celestial hemisphere: Northern · Constellation: Cepheus (Cep) · Contains: HD224826 · HD225136 · HD225216 · LBN 580 · LBN 581 · LBN 582 · LBN 583 · LBN 584 · LBN 586 · LBN 588 · LDN 1267 · LDN 1268 · LDN 1269 · LDN 1270 · LDN 1271 · LDN 1275 · NGC 7822 · Sh2-171

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CEDERBLAD 214

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CEDERBLAD 214

Cederblad 214 (also known as CED214 and Sharpless 171) is a large emission nebula visible in the constellation of Cepheus. It is around 2740 light years away. Embedded in it is the open cluster Berkeley 59 (top right), which is causing the nebula to glow. The nebula is an active star forming region, forming stars of relatively small mass.

This image was captured over the span of a week totaling 20.6 hours in narrowband. Each filter was mapped to the Hubble Palette.

OTA: William Optics GT81 using 0.8x Flat6A-81 reducer
Mount: Celestron CGX-L
Camera: ZWO ASI294MM Pro
Gain: 100

Night 1
7nm Sii 36x600s
6 hours

Night 2
7nm Oiii 44x600s
7.33 hours

Night 3
3nm Ha 29x900s
7.25 hours

20.6 hours total

Cooling Temperature: -10 Celsius
Auto-guiding: ZWO ASI174MM Mini and ZWO M48 OAG
Control: ZWO ASIAIR Pro

Flagstaff, AZ - Bortle 4 skies

Calibrated in Astro Pixel Processor⁣ with darks and flats

Processed in Pixinsight and Lightroom

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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
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Top picks
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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
Deep sky
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Extremely wide field
Star trails
Northern lights
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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
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	5211702
PixInsight job	MGYZCPF574JLWSDQ5X4YRQABMA6OJL4I
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	00h03m55s.68
RA (top/left)	00h09m38s.50
RA (top/right)	23h58m49s.13
RA (bottom/right)	23h58m26s.13
RA (bottom/left)	00h08m45s.44

Dec (center)	+67°10′20″.3
Dec (top/left)	+67°42′27″.1
Dec (top/right)	+67°45′54″.5
Dec (bottom/right)	+66°37′26″.4
Dec (bottom/left)	+66°34′20″.1

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CEDERBLAD 214

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