by APOD Robot » Mon Dec 05, 2022 5:08 am
Pleiades: The Seven Sisters Star Cluster
Explanation: Have you ever seen the Pleiades star cluster? Even if you have, you probably have never seen it as large and clear as this. Perhaps the most famous star cluster on the sky, the bright stars of the
Pleiades can be seen with the unaided eye even from the depths of a
light-polluted city. With a long exposure from a dark location, though, the dust cloud surrounding the
Pleiades star
cluster becomes very evident. The
featured 11-hour exposure, taken from the
Siding Spring Observatory in
Australia, covers a sky area several times the size of the full
moon. Also known as the
Seven Sisters and
M45,
the Pleiades lies about 400
light years away toward the constellation of the Bull (
Taurus). A
common legend with a
modern twist is that one of the brighter stars faded since the cluster was named, leaving only
six of the sister stars visible to the unaided eye. The actual number of
Pleiades stars visible, however, may be more or less than seven, depending on the
darkness of the surrounding sky and the
clarity of the observer's eyesight.
[url=https://apod.nasa.gov/apod/ap221205.html] [img]https://apod.nasa.gov/apod/calendar/S_221205.jpg[/img] [size=150]Pleiades: The Seven Sisters Star Cluster[/size][/url]
[b] Explanation: [/b] Have you ever seen the Pleiades star cluster? Even if you have, you probably have never seen it as large and clear as this. Perhaps the most famous star cluster on the sky, the bright stars of the [url=https://en.wikipedia.org/wiki/Pleiades]Pleiades[/url] can be seen with the unaided eye even from the depths of a [url=https://apod.nasa.gov/apod/ap200408.html]light-polluted city[/url]. With a long exposure from a dark location, though, the dust cloud surrounding the [url=https://apod.nasa.gov/apod/ap091205.html]Pleiades[/url] star [url=http://asterisk.apod.com/viewtopic.php?f=24&t=18009]cluster[/url] becomes very evident. The [url=https://www.instagram.com/p/ClNSJOgpxAR/]featured 11-hour exposure[/url], taken from the [url=https://youtu.be/d0bzO0ZnhdU]Siding Spring Observatory[/url] in [url=https://en.wikipedia.org/wiki/Australia]Australia[/url], covers a sky area several times the size of the full [url=https://solarsystem.nasa.gov/moons/earths-moon/overview/]moon[/url]. Also known as the [url=http://www.naic.edu/~gibson/pleiades/pleiades_myth.html]Seven Sisters[/url] and [url=https://apod.nasa.gov/apod/ap131122.html]M45[/url], [url=https://www.skyandtelescope.com/astronomy-news/observing-news/many-pleiades-can-see10222014/]the Pleiades[/url] lies about 400 [url=https://spaceplace.nasa.gov/light-year/en/]light years[/url] away toward the constellation of the Bull ([url=https://en.wikipedia.org/wiki/Taurus_%28constellation%29]Taurus[/url]). A [url=http://arxiv.org/ftp/arxiv/papers/0810/0810.1592.pdf]common legend[/url] with a [url=http://kencroswell.com/GD50.html]modern twist[/url] is that one of the brighter stars faded since the cluster was named, leaving only [url=https://i.pinimg.com/originals/a9/b3/21/a9b321789591e2839c773669a5aa03bd.jpg]six[/url] of the sister stars visible to the unaided eye. The actual number of [url=http://www.youtube.com/watch?v=p6prI0Zfw80]Pleiades[/url] stars visible, however, may be more or less than seven, depending on the [url=https://apod.nasa.gov/apod/ap010827.html]darkness[/url] of the surrounding sky and the [url=http://en.wikipedia.org/wiki/File:Snellen_chart.svg]clarity[/url] of the observer's eyesight.
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