Cosmic Question Mark (3-panel mosaic) (Massimo Di Fusco)

Celestial hemisphere: Northern · Constellation: Cassiopeia (Cas) · Contains: HD14 · HD223128 · HD223274 · HD223358 · HD223670 · HD224826 · HD224918 · HD225009 · HD225010 · HD225136 · HD225216 · HD225271 · HD225273 · HD404 · HD443 · HD553 · LBN 577 · LBN 580 · LBN 581 · LBN 582 · LBN 583 · LBN 584 · LBN 585 · LBN 586 · LBN 587 · LBN 588 · LBN 589 · LBN 590 · LDN 1260 · LDN 1263 · And 13 more.

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Cosmic Question Mark (3-panel mosaic)

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Cosmic Question Mark (3-panel mosaic)

This is an image of the Question Mark Nebula or Cosmis Question Mark in the constellation Cepheus, a mosaic of 3 vertical panels resulting from 32 hours of exposure.
This is the so-called Question Mark Nebula or Cosmic Question Mark, a vast emission zone that includes various nebulae. At its center is NGC 7822 which I have already imaged this year with the Konus 200/1000, a young star-forming region characterized by massive pillars of gas and dust which is about 2900 light-years away. This region has one of the hottest nearby stars known with a surface temperature of 45000 K and a luminosity about 100000 times that of our Sun. Below is Sh2-170 (the dot of the question mark), a small nebula also known as Little Rosetta due to its resemblance to the well-known Rosetta in the constellation Unicorn, 7500 light-years away.

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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	8346768
PixInsight job	L3TIBFZAH4E13GEKNM3MS3MQ5YOTH012
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	23h59m05s.49
RA (top/left)	00h14m15s.30
RA (top/right)	23h44m12s.90
RA (bottom/right)	23h46m34s.47
RA (bottom/left)	00h11m21s.69

Dec (center)	+66°41′04″.8
Dec (top/left)	+69°01′50″.2
Dec (top/right)	+69°02′30″.7
Dec (bottom/right)	+64°15′31″.2
Dec (bottom/left)	+64°14′45″.7

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Cosmic Question Mark (3-panel mosaic)

Cosmic Question Mark (3-panel mosaic)

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Cosmic Question Mark (3-panel mosaic)

Cosmic Question Mark (3-panel mosaic)

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