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m57.jpg
M571261 viewsMessier 57 the Ring Nebula appears in the northern constellation of Lyra is a prominent example of a planetary nebula. This is a shell of ionized gas expelled into the surrounding interstellar medium by a red giant star, which was passing through the last stage in its evolution before becoming a white dwarf. The distance is 2300 light years.
M57finalsmall.jpg
The Ring Nebula in the Constellation Lyra141 viewsM57, the ring nebula, is found in the constellation Lyra. M57 is a planetary nebula, which is an expanding shell of gas ejected from a star in the later stages of its evolution. The image captured the outer halo structure of M57 as well as the galaxy IC 1296 (see annotated image on the Facebook page). Image is a total of 9 hr 20 min exposure taken through a 12.5” RCOS f/9 astrograph at f/6 (Astro-Physics CCDT67 reducer) with a SBIG STF8300m CCD camera on a Paramount ME on the nights of 18, 19, 22 May 17, 19 June 2020 in Mayhill, NM (13 x 1200 s lights, 5 x 1200 s blue, 5 x 1200 s red, 5 x 1200 s green all at -15 degrees C). Processed in PixInsight 1.8.8-6 Ripley (x64).
   
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