Tag Archives: QHY5L-II

IC5146 / Cocoon Nebula in HaRGB

This is my first time ever imaging this target, and like the Crescent Nebula and Pelican Nebula I am limited to a 2.5 hour window per night to acquire data due to trees / house getting in the way, luckily I managed to get a lot of Ha data on this subject to blend this into the RGB image which smoothed out the lack of data for RGB somewhat, I would have liked to have got more RGB Data and I may re-image this with longer exposures on RGB next time also

Cocoon Nebula in HaRGB
Cocoon Nebula in HaRGB with PIxInsight 2x Drizzle

Image Details:
56x150S in R
56x150S in G
66x150S in B
101x300S in Ha

Acquisition Dates: Sept. 25, 2018, Sept. 27, 2018, Sept. 29, 2018, Oct. 20, 2018, Oct. 22, 2018, Oct. 26, 2018, Oct. 28, 2018, Oct. 29, 2018, Nov. 14, 2018, Nov. 17, 2018, Nov. 18, 2018, Nov. 30, 2018, Dec. 7, 2018, Dec. 9, 2018, Dec. 12, 2018, Dec. 13, 2018, Dec. 27, 2018, Jan. 4, 2019

All frames had 101 Darks and Flats applied, the Ha layer was blended using the new NBRGB Script in PixInsight 1.8.6, the more zoomed in picture is of the same data but with a 2x drizzle applied then cropped

Equipment Details:
Imaging Camera: Qhyccd 183M Mono ColdMOS Camera at -20C
Imaging Scope: Sky-Watcher Quattro 8″ F4 Imaging Newtonian
Guide Camera: Qhyccd QHY5L-II
Guide Scope: Sky-Watcher Finder Scope
Mount: Sky-Watcher EQ8 Pro
Focuser: Primalucelab ROBO Focuser
FIlterwheel: Starlight Xpress Ltd 7x36mm EFW
Filters: Baader Planetarium RGB and Ha
Power and USB Control: Pegasus Astro USB Ultimate Hub Pro
Acquisition Software: Main-Sequence Software Inc. Sequence Generator Pro
Processing Software: PixInsight 1.8.6

Flickr Link: https://www.flickr.com/…/465843…/in/album-72157688487449350/

AstroBin Link: https://www.astrobin.com/384658/

NGC6888 – Crescent Nebula in SHO Narrowband

This object is a little tricker for me since I only have a 3-3.5 hour window per evening due to trees and the house blocking my view, this is also the first image that I used the drizzle function within PixInsight to be able to provide a detailed up close version of the image, I was very happy to have captured the brown “Globules” within the nebula to

Crescent Nebula in SHO Narrowband
Same object but with a 2x drizzle function in PixInsight applied

Image Details:
Red Channel – SII Data – 89x300S
Green Channel – Ha Data – 64x300S
Blue Channel – OIII Data – 109x300S

101 Darks, Flats and BIAS Frames used 

Equipment Used:-
Imaging Camera: QHY183M Mono ColdMOS Camera at -20C
Imaging Scope: Skywatcher Quattro 8″ F4 Newtonian
Guide Scope: Skywatcher Finder Scope
Guide Camera: QHY5L-II
Mount: Skywatcher EQ8 Pro GEM Mount
Focuser: PrimaluceLabs ROBO Focuser
Filterwheel: StarlightXpress 7x36mm EFW
Filters: Baader 7nm Ha, SII and OIII
Acquision Software: Main Sequence Software Sequence Generator Pro
Processing Software: Pixinsight 1.8.5

Pegasus Astro Ultimate PowerBox

I spent a lot of time looking at PowerBoxes/USB Controllers, the late Per Frejvall had developed a very nice Remote USB Hub but of course with the passing of Per, these are no longer available. I looked at two hubs, the HitechAstro Mount Hub Pro abnd the one I settled for was the Pegasus Astro Ultimate PowerBox.

Unboxing the PowerBox I was pleased with the build quality, they even ship mounting brackets for you to be able to mount it onto your setup, here’s an image of mine mounted on top of my Sky-Watcher Quattro:

Pegasus Astro Ultimate PowerBox on Imaging Setup

I loaded up the software onto the observatory PC and again pleasantly surprised at how easy it was to get started and configure the names of the powered devices connected as well as names for each of the dew heaters, in the following image you can see my power connected devices and my dew heater for my guider camera:

Screenshot of Control Software

I configured the software to automatically power my devices the moment the unit is switched on, so what do I have connected to the PowerBox?

  • QHY5L-II Guide Camera
  • StarlightXpress USB Filterwheel
  • PrimaluceLabs ROBO Focuser
  • EQ8 Pro Mount PC-Direct Cable

I didn’t connect my QHY183M at the moment as I discovered that during image download it seemed to cause a timeout on the QHY5L-II Camera, I have raised a ticket with Pegasus Astro on this one. From a Power perspective, I only have my QHY183M and my Rear Fan assembly/heater connected as I currently do not have the power cable to connect directly to the hub for the EQ8 Pro (On Order). There is also a temperature sensor for the ultimate version, which works well as an interface for Sequence Generator Pro and my Auto Focuser routines.

I have been using the Hub now for a good few months, I am pretty happy with it, am I totally happy you might ask, well to be honest there’s a couple of niggly things that I have emailed Pegasus Astro about (awaiting a response):

  • Voltage. I am running 13.8V regulated bench power supply capable of delivering up to 15A which is powering the hub, however when devices such as the camera, dew heater, fan assembly are all running, the voltage level drops down to around 12V according to the software, I would not expect this to do so, I would expect it to remain 13.8V. My EQ8 Pro mount is powered by the same supply (but not through the hub currently) and during slew the voltage in the software does not change, so it’s obviously something being caluclated within the hub somewhere.
  • Issue with USB3 Camera (QHY183M) is still outstanding
  • When you set the power to the dew heater for example I always run it at 170, however when the software restarts you have to manually go and set this again
  • Ability to reboot or “Disconnect” a specific USB Port remotely would have been nice.

The main reason I wanted something like this was the ability to reboot the hub remotely, with standard USB Hubs this is not possible, as above, I would love to have a bit more granularity on this and have it on a per USB port but it works well for me right now.


Leo Triplet in LRGB

This is not the first time I have imaged this trio of trespassers, I have imaged them before on the same scope but with my previous Atik 383L+ CCD Imager, so again similar to M81 and M82, you can clearly see the difference in resolution the new camera offers, here’s the previous image taken from my previous post here:

Equipment Used:
Imaging Scope: Sky-Watcher Quattro 8″ F4 Imaging Newtonian
Imaging Camera: Qhyccd 183M 20mpx ColdMOS Camera at -20C
Guide Scope: Sky-Watcher Finder Scope
Guide Camera: Qhyccd QHY5L-II
Mount: Sky-Watcher EQ8-Pro GEM Goto Mount
Filterwheel: Starlight Xpress Ltd 7x36mm EFW
Filters: Baader Planetarium 36mm LRGB Filters

Software:
Image Acquisition: Main Sequence Software SGPro 3
Guiding: PHD2
Image Processing: PixInsight

Image Details:
Luminance: 101×150 Second Exposures
Red: 101×150 Second Exposures
Green: 101×150 Second Exposures
Blue: 101×150 Second Exposures
Acquisition Dates: 18/19/20/21 Apr 2018,  4/5/6/7/8/9 May 2018

Total Exposure Time: 16.83 Hours

Target Details: Leo Triplet
Constellation: Leo
RA: 11h 19m 36.15s
Dec: 13° 17′ 2.90″
Distance from Earth: 35 Million Light Years
Galaxies: M65 (Top Right), M66 (Bottom Right) and NGC3628 (Bottom Left) also known as The Hamburger Galaxy or Sarah’s Galaxy

IC434 – Horsehead Nebula in LRGB

My first RGB Image from the Qhyccd 183M 20mpx Back Illuminated ColdMOS Camera, so here’s what I hope is one of many images taken with this awesome camera

Gear:
Imaging Scope: Sky-Watcher Quattro 8″ F4 Imaging Newtonian
Imaging Camera: Qhyccd 183M 20mpx ColdMOS Camera at -20C and DSO Gain
Mount: Sky-Watcher EQ8 Pro
Guide Camera: Qhyccd QHY5L-II Mono
Guide Scope: Sky-Watcher 50×90 Finder Scope
Filter Wheel: Starlight Xpress Ltd 7x36mm EFW
Filters: Baader Planetarium 36mm RGB
Coma Corrector: Sky-Watcher Aplanatic Coma Corrector
Image Acquisition: Main Sequence Software SGPro
Image Processing: PixInsight

Image Details:
Target: IC434 – Horsehead Nebula
Constelation: Orion
Red: 19x300S
Green: 19x300S
Blue: 19x300S
Darks: 51x300S
Flats: 101
Bias: 251 converted to SuperBIAS and deducted from Flats

Data acquired on: Feb. 9, 2018,  Feb. 11, 2018,  Feb. 15, 2018

PixInsight Image processing workflow:
1. Calibrated against darks and Bias Subtracted Flats
2. Star Alignment
3. Least noise frame from each colour chosen as Normalization Frame and Dynamic Background Extraction Performed
4. Normalization of all frames
5. Stacking of frames and generation of drizle data (for larger quality image in future)
6. Performed LinearFit using Red stacked image as reference
7. Performed MultiMedianTransformation to reduce background noise
8. Performed SCNR to remove excessive green in image
9. Stretched the image using HistogramTransformation
10. Performed a CurvesTransformation to bring out the star colour

Right now I have not performed any Sharpening of the image, nor have I added the Ha data to this image, I’ll post an updated image when I get round to doing that