Celestial hemisphere:  Northern  ·  Constellation: Pegasus (Peg)  ·  Contains:  M 15  ·  NGC 7078
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M15, Roberto Marinoni
M15
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M15

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M15, Roberto Marinoni
M15
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M15

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Description

M15 is a globular cluster in the constellation of Pegasus; it has an apparent diameter of

18’ and magnitude 6.2.

The cluster contains many variable stars, as many as 110, which allowed us to estimate a distance of 33,600 light years.

This cluster has two peculiar characteristics: it is one of the densest in the Milky Way and contains a planetary nebula (Pease 1, discovered in 1927 on photos taken by the Mount Wilson Observatory)

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  • M15, Roberto Marinoni
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    M15, Roberto Marinoni
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M15, Roberto Marinoni

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Astrofili Dalai Lama
Imagers of Italy