Celestial hemisphere:  Northern  ·  Constellation: Cassiopeia (Cas)  ·  Contains:  NGC 7789
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NGC 7789, Roberto Marinoni
NGC 7789
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NGC 7789, Roberto Marinoni
NGC 7789
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Description

NGC 7789 is an open cluster in Cassiopea constellation.
It is a very rich and concentrated cluster, formed by several hundred components and with an apparent diameter of 25’; its distance is estimated to be around 7620 light years.
Its age is quite advanced, estimated at 1.7 billion years or slightly less.

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