Observation by Mike Scarisbrick: The Ring Nebula

Uploaded by

Mike Scarisbrick

Observer

Mike Scarisbrick

Observed

2016 Sep 10 - 23:00

Uploaded

2016 Nov 04 - 21:19

Objects

The Ring Nebula (M57)

Planetarium overlay









Constellation

Lyra

Field centre

RA: 18h53m
Dec: +33°01'
Position angle: -17°59'

Field size

0°21' × 0°14'

Equipment
  • SkyWatcher 200 mm Newtonian
  • HEQ5 mount
  • Canon EOS 500D
  • Trius SX-814C
Exposure

58 x 80 seconds with Canon DSLR at ISO 3200, 35 x 60 seconds with Starlight Xpress SX-814C

Location

Cambridgeshire, UK

Target name

Messier 57

Title

The Ring Nebula

About this image

I had been trying to compare my SkyWatcher barlow lens with an APM Coma Correcting x2.7 barlow, and decided to combine two images.

The background stars are from the DSLR with the SkyWatcher barlow (spaced to give x2.4), taken on a moonless, dewless, lovely night on the 29th August. You can see hints of a barred-spiral galaxy, at about the 'half past one' position halfway from M57 to the edge of the picture. The nebula itself is from the Trius camera (hence the nice colours) and the x2.7 APM barlow, but with a first quarter moon and visibility of varying quality - there were a few lighter pixels in the 'galaxy' position - but nothing that would draw your attention.

Each set of images was separately stacked using AstroArt6, and the two then combined using a program of my own devising.

 

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