British Astronomical Association
Supporting amateur astronomers since 1890

BAA Images Ian Rothwell

Observation by Ian Rothwell: M57 in H-alpha

Uploaded by

Ian Rothwell

Observer

Ian Rothwell

Observed

2018 Sep 21 - 20:30

Uploaded

2018 Sep 22 - 11:32

Objects

The Ring Nebula (M57)

Planetarium overlay









Constellation

Lyra

Field centre

RA: 18h53m
Dec: +33°01'
Position angle: +22°25'

Field size

0°23' × 0°18'

Equipment
  • SkyWatcher Explorer 150P
  • ZWO ASI1600MMCool Pro
  • ZWO EFW 1.25" x 8
  • Baader H-alpha filter
Exposure

10 x 60sec

Location

Bournemouth, Dorset

Target name

M57

Title

M57 in H-alpha

About this image

The plan was to capture H-alpha, OIII ans SII and create a false-colour composite of the narrowband regions of the nebula. Unfortunately, the British weather had other ideas and I only managed the H-alpa part. The nebula is very bright at this band, bearing in mind it was only a 60sec exposure under increasing cloud cover.

Files associated with this observation
Like this image
Copyright of all images and other observations submitted to the BAA remains with the owner of the work. Reproduction of work by third parties is expressly forbidden without the consent of the copyright holder. By submitting images to this online gallery, you grant the BAA permission to reproduce them in any of our publications.