Tag Archives: RGB

NGC7635 – Bubble Nebula

NGC7635 – Bubble Nebula
Image consists of
18x 300S – Luminance
14x 300S – Red
14x 300S – Green
14x 300S – Blue
20x 600S – Hydrogen Alpha (As lighten layer in Red Channel)

Equipment Used:
Imaging Scope: Sky-Watcher Quattro 8-CF 8″ F4 Newtonian
Guide Scope: Celestron C80ED
Imaging Camera: Atik Cameras 383L+ Mono CCD Cooled to -20C
Guide Camera: Qhyccd 5L-II
Mount: Skywatcher EQ8 Pro
Capture Software: Main Sequence Software Sequence Generator Pro
Guide Software: PHD2
Dark/Flat Subtraction and Stacking: Maxim-DL
Post Processing: Photoshop, GradientXterminator, NoiseNinja

My first image with the Skywatcher Quattro 8-CF F4

NGC7023 – Iris Nebula
The Iris Nebula, also NGC 7023 and Caldwell 4, is a bright reflection nebula and Caldwell object in the constellation Cepheus. NGC 7023 is actually the cluster within the nebula, LBN 487, and the nebula is lit by a magnitude +7 star, SAO 19158.[1] It shines at magnitude +6.8. It is located near the Mira-type variable star T Cephei, and near the bright magnitude +3.23 variable star Beta Cephei (Alphirk). It lies 1,300 light-years away and is six light-years across

This is the very first time I have imaged this object, and it is the first object ot be imaged with my new Skywatcher Quattro 8-CF F4 telescope, I am extremely happy with the results

The image consists of the following:
Luminance: 19x300S
Red: 13x300S
Green: 13x300S
Blue: 13x300S

All frames have 25 darks and 25 flats applied also

Gear Used
Mount: Skywatcher EQ8 Pro
Imaging Scope: Skywatcher Quattro 8-CF F4 Newtonian
Guide Scope: Celestron C80ED
Imaging Camera: Atik 383L+ Mono CCD Cooled to -20C
Filter Wheel: StarlightXpress 7x36mm USB Filterwheel
Guide Camera: QHYCCD 5L-II

Software Used
Image Acquisition: Sequence Generator Pro
Guiding: PHD2
Telescope Control: EQMOD

Image Processing:
Pre-Processing: Nebulosity 3
Stacking: Maxim-DL
Post Processing: PixInsight