Melotte 25 (Gary Imm)

Celestial hemisphere: Northern · Constellation: Taurus (Tau) · Contains: 54 gam Tau · 55 Tau · 58 Tau · 61 del Tau · 63 Tau · 64 Tau · 68 Tau · 70 Tau · 71 Tau · 74 eps Tau · 75 Tau · 77 the01 Tau · 78 the02 Tau · 80 Tau · 81 Tau · 85 Tau · 87 alf Tau · 89 Tau · 91 sig01 Tau · 92 sig02 Tau · Ain · Aldebaran · Hyadum I · Hyadum II · IC 374 · Part of the constellation Taurus (Tau) · Sh2-239 · Taurus · The star 71Tau · The star Aldebaran (αTau) · And 8 more.

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Melotte 25

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Melotte 25

This object is an open star cluster of over 100 stars located only about 150 light years away in the constellation of Taurus. It is the nearest large open cluster to us. The V-shape of the cluster represents the face of Taurus the Bull. Mouse-over the Astrobin image to see the "V".

Because of the wide 5 degree width of this cluster, I had to image it as a 4 panel mosaic.

The brightest star in the V in the orange star Aldebaran. Aldebaran is unrelated to the Hyades cluster and is located much closer to Earth at only 65 light years.

Together with Aldebaran, the brightest stars of the Hyades V present a wonderful spectrum of color, from white to orange to blue. These bright stars have consumed the hydrogen fuel at their cores and are now evolving into giant stars. A number of double stars are visible with these bright stars.

The refractors!
Cloudy Nights
ZWO ASI1600MM/QHY163M
Open Star Clusters

Caldwell Catalog (Complete*)
Open Clusters

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	1902744
PixInsight job	7FFI6UBHISIDSZ67NX39WINMID667MTG
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	04h28m41s.68
RA (top/left)	04h40m02s.32
RA (top/right)	04h16m19s.20
RA (bottom/right)	04h17m37s.51
RA (bottom/left)	04h40m49s.30

Dec (center)	+17°16′18″.5
Dec (top/left)	+19°30′54″.1
Dec (top/right)	+19°10′44″.8
Dec (bottom/right)	+14°59′26″.5
Dec (bottom/left)	+15°19′09″.9

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Melotte 25

Melotte 25

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Melotte 25

Melotte 25

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