Contains:  Other
M27 The Dumbbell Nebula H-Alpha, OIII & SII "CFHT Palette", Terry Hancock

M27 The Dumbbell Nebula H-Alpha, OIII & SII "CFHT Palette"

M27 The Dumbbell Nebula H-Alpha, OIII & SII "CFHT Palette", Terry Hancock

M27 The Dumbbell Nebula H-Alpha, OIII & SII "CFHT Palette"

Description

Here is another narrowband version using the CFHT Palette Canada-France-Hawaii Telescope H-Alpha is assigned to the red channel, OIII is assigned to the green channel and SII is assigned to the blue channel.

Total Exposure time 17.3 hours

Thanks for looking

All the Best & Clear Skies

Terry

Down Under Observatory

Down Under Observatory on Facebook

YouTube

Location: DownUnder Observatory, Fremont MI

Date of Shoot 13th, 18th, 21st, 22nd and 23rd June 2012

Exposure: H-Alpha 9x40 mins, OIII 10x40 mins , SII 7x40 mins unbinned

Camera: QHY9M monochrome CCD, cooled to -30C www.astrofactors.com

StarlightXpress Color Filter Wheel

Scope: Astronomy Technologies Astro-Tech 10" f/8 Ritchey-Chrétien astrograph

Astro Tech 2" Field Flattener.

Autoguided using QHY5 autoguider, StarlightXpress Ultra Slim Off Axis guider

Paramount GT-1100S German Equatorial Mount (with MKS 4000)

Image Aquisition software Maxim DL5

Stacking software CCDStack

Post Processed with Photoshop CS5

Comments

Histogram

M27 The Dumbbell Nebula H-Alpha, OIII & SII "CFHT Palette", Terry Hancock