The Blue Horsehead Nebula (IC4592) (Alicia Rossiter)

Celestial hemisphere: Southern · Constellation: Scorpius (Sco) · Contains: 10 Sco) · 10 ome02 Sco · 14 Sco) · 14 nu. Sco · 14.06 · 150 Nuwa · 4 Oph · 4 psi Oph · 8 Sco A) · 8 Sco B · 8 bet01 Sco · 9 Sco) · 9 ome01 Sco · Akrab (β1 Sco · B40 · B41 · Graffias · HD143616 · HD143646 · HD143714 · HD143764 · HD143765 · HD143784 · HD143785 · HD143842 · HD143899 · HD143955 · HD143956 · HD144034 · HD144092 · And 84 more.

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The Blue Horsehead Nebula (IC4592)

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The Blue Horsehead Nebula (IC4592)

The Blue Horsehead Nebula is a beautiful reflection nebula in the constellation of Scorpius. In my location it is is a challenging target. I only have the visibility to it when is about 25 degrees above the horizon at dawn. As the Spring progresses into the "Milky Way" season, it will be even more difficult with longer days and lots of trees in between!. So I have decided to try my best now with the short window available and today there was an opportunity and I took it. Moonless clear sky and very good seeing conditions. Good polar alignment, great guiding and only 1.3 hours of integration with 10 min subs, and of course, my loyal RedCat 51 that never lets me down!. I am grateful for the return. Here is my dear Blue horse quiet and silent under the stars in a very cold end of winter day.

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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

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	7362426
PixInsight job	M7DW9DW62M75UARE8GT3YE4EM2EI936X
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	16h13m24s.95
RA (top/left)	16h03m15s.66
RA (top/right)	16h25m32s.37
RA (bottom/right)	16h23m18s.100
RA (bottom/left)	16h01m29s.68

Dec (center)	-19°24′45″.2
Dec (top/left)	-21°28′26″.2
Dec (top/right)	-20°45′26″.7
Dec (bottom/right)	-17°19′07″.7
Dec (bottom/left)	-18°01′16″.6

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The Blue Horsehead Nebula (IC4592)

The Blue Horsehead Nebula (IC4592)

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The Blue Horsehead Nebula (IC4592)

The Blue Horsehead Nebula (IC4592)

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