M45: The Pleiades (FlapAstro)

Celestial hemisphere: Northern · Constellation: Taurus (Tau) · Contains: 16 Tau · 17 Tau · 18 Tau · 19 Tau) · 19 q Tau · 20 Tau · 21 Tau · 22 Tau · 23 Tau · 24 Tau · 25 Tau) · 25 eta Tau · 26 Tau · 27 Tau · 28 Tau · Alcyone · Asterope · Atlas · Barnard's Merope Nebula · Celaeno · Electra · IC 349 · LBN 770 · LBN 771 · LBN 772 · LBN 776 · M 45 · Maia · Maia Nebula · Merope · And 18 more.

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M45: The Pleiades

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M45: The Pleiades

Commonly called the Pleiades or Seven Sisters, M45 is known as an open star cluster. It contains over a thousand stars that are loosely bound by gravity, but it is visually dominated by a handful of its brightest members. The light of the stars is reflecting off the surface of pitch-black clouds of cold gas laced with dust. This produces a reflection nebula.
M45 is located an approx. distance of 445 light-years from Earth in the constellation Taurus.

This image is a mosaic of 4 individual pictures, each composed of 25x300s subs. Only the best 25 exposures were retained for each sub. It was taken with a cooled CMOS color camera and a light pollution filter during several nights in October 2021.

Original
Final
B

QHY Users Group
Cooled Color Cams
Deep Sky Mosaics
CMOS Imagers

Broadband
Reflection nebulae

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	5726670
PixInsight job	S58GSZVOY2L7ET796EBAD6IUB77LP3QV
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	03h46m25s.417
RA (top/left)	03h52m20s.502
RA (top/right)	03h39m01s.964
RA (bottom/right)	03h40m37s.580
RA (bottom/left)	03h53m43s.827

Dec (center)	+24°13′30″.32
Dec (top/left)	+25°27′38″.88
Dec (top/right)	+24°56′11″.40
Dec (bottom/right)	+22°58′27″.97
Dec (bottom/left)	+23°29′26″.95

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M45: The Pleiades

M45: The Pleiades

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M45: The Pleiades

M45: The Pleiades

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