THE BLUE HORSEHEAD NEBULA (IC 4592) (Drew Evans)

Celestial hemisphere: Southern · Constellation: Scorpius (Sco) · Contains: 10.94 · 14 Sco) · 14 nu. Sco · 19 Fortuna · 4 Oph · 4 psi Oph · 8 Sco A) · 8 Sco B · 8 bet01 Sco · 8 bet02 Sco · 9 Sco) · 9 ome01 Sco · Akrab (β1 Sco · B40 · B41 · Graffias · HD144253 · HD144273 · HD144365 · HD144412 · HD144586 · HD144607 · HD144689 · HD144766 · HD144822 · HD144925 · HD144981 · HD145029 · HD145100 · HD145294 · And 38 more.

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THE BLUE HORSEHEAD NEBULA (IC 4592)

Powered byPixInsight

THE BLUE HORSEHEAD NEBULA (IC 4592)

THE BLUE HORSEHEAD NEBULA (IC 4592)

The Blue Horsehead Nebula is a faint reflection nebula in the Scorpius constellation that is lit by Nu Scorpii.
The Nebula is about 40 light-years across, located some 420 light-years away near the center of our Milky Way Galaxy.
This image was taken over the span of several evenings last month, totaling almost 20 hours of data acquisition.

OTA: Askar V60 (270mm FL f/4.5)
Mount: ZWO AM5
Camera: ZWO ASI2600MM Pro
Gain: 100
Cooling Temperature: -10 degrees celsius

Filters:
Chroma L⚪ 300s x 51
Chroma R🔴 300s x 51
Chroma G🟢 300s x 51
Chroma B🔵 300s x 51
19.5 hours total total acquisition time

Auto-guiding: ZWO ASI174MM Mini and ZWO OAG-L
Auto-focusing: ZWO EAF
Control: ZWO ASIAIR Pro

Calibrated in Astro Pixel Processor with flats, darks and dark flats
Processed in Pixinsight and Lightroom

Location: Bortle Class 2 skies outside Flagstaff, Arizona

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	Advanced success
Started	...
Astrometry.net job	7860974
PixInsight job	NZC7R6UYJ1RYPJNVHGZWCLPIDAIAKG2F
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	16h15m04s.90
RA (top/left)	16h04m06s.20
RA (top/right)	16h22m59s.99
RA (bottom/right)	16h25m54s.50
RA (bottom/left)	16h07m20s.91

Dec (center)	-19°39′25″.1
Dec (top/left)	-20°33′10″.1
Dec (top/right)	-21°39′12″.5
Dec (bottom/right)	-18°43′22″.7
Dec (bottom/left)	-17°38′15″.8

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Contribution Index (beta):

THE BLUE HORSEHEAD NEBULA (IC 4592)

THE BLUE HORSEHEAD NEBULA (IC 4592)

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Image Index:

Contribution Index (beta):

THE BLUE HORSEHEAD NEBULA (IC 4592)

THE BLUE HORSEHEAD NEBULA (IC 4592)

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