NGC 457 The E.T. Cluster

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mariosi
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NGC 457 The E.T. Cluster

#1

Post by mariosi »

NGC 457
Constellation Cassiopeia
Right ascension 01h 19m 32.6s
Declination +58° 17′ 27″
Distance 7.922 kly (2.429 kpc)
Apparent magnitude (V) 6.4
Apparent dimensions (V) 13.0′

NGC 457
(also known as the Owl Cluster, the ET Cluster, or Caldwell 13) is an open star cluster in the constellation Cassiopeia. It was discovered by William Herschel in 1787,and lies over 7,900 light years away from the Sun. It has an estimated age of 21 million years.The cluster is sometimes referred by amateur astronomers as the Owl Cluster, Kachina Doll Cluster,the ET Cluster (due to its resemblance to the movie character) or the "Skiing Cluster". Two bright stars, magnitude 5 Phi-1 Cassiopeiae and magnitude 7 Phi-2 Cassiopeiae can be imagined as eyes(Wikipedia).

DAY: Friday DATE: 7/10/16 TIME: 02:00
SCOPE: Dob Sky- Watcher 10px F.L.1200/f4.7
EYEPIECE: T/S 30mm plossl 2" F.O.V.68°
LOCATION: Mammari

Thanks for looking
Marios
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bladekeeper
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#2

Post by bladekeeper »

One of my favorite open clusters! Nice sketch, Marios! :)
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Lady Fraktor
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#3

Post by Lady Fraktor »

Well done Marios, a fine sketch :)
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mariosi
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#4

Post by mariosi »

Thank you!

Marios
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#5

Post by Thefatkitty »

This time I reminded myself it wasn't a photo... :lol: Once again Marios, well done!

All the best,
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mariosi
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#6

Post by mariosi »

Thank you Mark for the nice feedback!

Marios
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#7

Post by pakarinen »

First time I stumbled across the cluster, I at first only noticed the two bright stars. Then as I looked more closely I thought, "Hey, wait a minute..."

Excellent sketch!
Olen Suomalainen!


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mariosi
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#8

Post by mariosi »

Thank you very much!

Marios
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