Ring Nebula

The Ring Nebula, also known as Messier 57, is a planetary nebula in the constellation of Lyra. It is what remains when a star similar to the Sun reaches the end of its life and blows away its outer envelope, leaving a white dwarf star at the centre.

Picture saved with settings embedded.
2016-08-27 M57 Ring Nebula 10x25s 2000mm f/10 R0.62 ISO4000

The size of M57 is about 1.4 arc-minutes (about 0.6 light years) at a distance of 1400 light years and a visual magnitude of +8.8.

I took a similar image six years ago which was a bit more grainy looking:

2010-08-07 M57 Ring Planetary Nebula 230 sec
2010-08-07 M57 The Ring Nebula, a Planetary Nebula in Lyra (230 sec)

All images © R.Powell


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