Van Yi
Photographer: Van Yi
Title: Rosette Nebula NGC2237-2239
Image Data:
Date : 16-17 Oct 2015
Location : 梅州 China
Telescope : 125SD f/3.9 (Ha/OIII) , Borg 89ED f/4.7 (RGB)
Mount : 信達AZEQ6
Camera : CentralDS Mono CDS-5D @ -5℃, (Ha) , Canon 5DII (RGB)
Filters : Baader Ha
Exposure time : Ha,500sx39 5.4hr , RGB ,300sx67 5.6hr
Guide : Tamron 100mm CCTV lens / lodestar,
Image processing: CCDstack、PI、 PS-CS4