Celestial hemisphere:  Southern  ·  Constellation: Norma (Nor)
NGC 6164, aapod2
NGC 6164
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NGC 6164, aapod2
NGC 6164
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Description

NGC 6164 has an appearance similar to what you would see in a planetary nebula. It has a gaseous shroud that surrounds the central star. These typically have shock-waves, and often highlight where they brighten showing where they are interacting with the interstellar medium.

NGC 6164 is 4,200 light-years away in the constellation of Ara. It is about 21 X 13 arc mins, at magnitude 11. It contains a very bright O-type star about 40 times as massive as our sun. The nebula in the center spans around 4 light-years and has an interesting bipolar symmetry, this is all framed nicely in the larger outer-shell, all set within a beautiful star-field.

February 2020 AAPOD2 Monthly Winner

Copyright: Terry Robison

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NGC 6164, aapod2