M45 - The Daughters of Atlas (Observatório Astrográfico do Boqueirão)

Celestial hemisphere: Northern · Constellation: Taurus (Tau) · Contains: 19 Tau) · 25 Tau) · Barnard's Merope Nebula · IC 349 · Maia Nebula · Merope Nebula · NGC 1432 · NGC 1435 · Sterope I (21 Tau) · The star 18 Tau · The star Alcyone (η Tau · The star Asterope · The star Atlas (27 Tau) · The star Celaeno (16 Tau) · The star Electra (17 Tau) · The star Merope (23 Tau) · The star Pleione (28 Tau) · The star Sterope II (22 Tau) · The star Taygeta (q Tau

M45 - The Daughters of Atlas, Observatório Astrográfico do Boqueirão

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M45 - The Daughters of Atlas

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M45 - The Daughters of Atlas

Probably the most famous open cluster of stars in the Northern Hemisphere Winter skies, named after the seven daughters of the greek titan Atlas, the Pleiades, also known as The Seven Sisters and in Portugal, as The Seven Little Goats, is an open cluster on the constellation of Taurus composed by hot blue luminous stars that astronomers think they have been formed within the last 100 million years.
A reflexion nebula around the brightest stars were once thought to be left over material from their formation, but are now considered likely to be an unrelated dust cloud in the interstellar medium through which the stars are currently passing by, that in high focal lengths can be seen large filaments of gases resulting from those interstellar winds.

3h:06min = 93 x 120s (RGB CFA + Optolong L-Pro) - Gain 120 - Bin 1x1 - Offset 30 - Focal Lengh 480mm

50 Darks + 50 BIAS + 50 Flats

The Moon was in the Waning Crescent phase at 1.9% of illumination, in a Bortle scale of 4 (21,63 Mag/Arc.Sec. SQM).

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	Basic success
Started	...
Astrometry.net job	8955172
PixInsight job	n/a
PixInsight queue size	n/a
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M45 - The Daughters of Atlas

M45 - The Daughters of Atlas

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M45 - The Daughters of Atlas

M45 - The Daughters of Atlas

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