Alan Clitherow

Photographer: Alan Clitherow
Title: NGC2244 in SII,Ha and OIII
Image data:
Rosette Nebula,
8 by 10 min Ha, 5 by 10 min OIII and 2 by 10 min SII filtered images
CDS-600D II pro mono, cooled to -15 dec ‘C’.
Colours mixed to Hubble Palette.
ED80 telescope with 0.8 FR / field flattener lens.
This is a reduced and compressed version.