QHY6 Mono Camera

How to set up Carte de Ciel (Sky Map, CdC) & PHD software for imaging & guiding – version 23/4/2020

After successfully managing to get guiding working earlier this week, I decided to write an outline of the process for (mainly) my own reference so that next time I would know what to do!

Not a perfect process – Damian made this comment:

Well done with regards to last night. I had a quick look at your screengrab on the blog. You didn’t have any calibration loaded – that’s why CAL is orange/yellow in the bottom right. The red DARK also suggests there are no darks for this connection..? Considering PHD had no data about your mount to go on, it did well!

….So still some way to go to improve it.

Click on link below to download process (PDF):

How to set up Carte de Ciel (Sky Map, CdC) & PHD software for imaging & guiding 230420

Andy

 

CCDSPEC Spectrometer/QHYCCD 6 camera – effect of turning on the fan

When I last used my CCDSPEC spectrometer with its QHYCCD6 camera, I was concerned about the number of apparent hot pixels appearing on the image. OK – it did not matter as the nature of the spectrum meant a few hot pixels were neither here nor there but still I wanted my new kit to work properly!

….Then I noticed that I had not been turning on the fan – so tonight I took pictures of the night sky (without telescope) using Nebulosity – with and without fan turned on the QHYCCD6 camera. The effect of cooling by this method is dramatic for these 30 second exposures as you can see below.

NB The spectrum of the night sky is just visible in the middle of each picture (30 second images).

All images from tonight’s session, including FITS files can be downloaded here:

QHY6 camera on CCDSPEC spectrometer – spectrum images of LRO night sky (30s exposure) without telescope – taken on 13/01/2019

Andy

With fan TURNED OFF:

With fan turned ON – only a couple of hot pixels remain:

Dark frame of fan turned ON:

Algae growing on Pot Plant Slide 1/12/2018 – Zeiss IM microscope; QHY6 mono camera vs. Bresser Mikrocam SP5.1 colour camera

About a month ago, I placed a slide in my pot pond outside and the algae on the photos below are those that have grown in situ. The slide was in the top ten centimetres of the pot pond – where sunlight would hit the slide every day.

This has also been an opportunity to try out my QHY6 mono astronomical camera on my Zeiss IM microscope & compare photos taken with that camera with those taken with my trusty Bresser Mikrocam SP 5.1 camera – the main issue is the small sensor on the QHY6 gives highly magnified image & loss of detail as in monochrome.

Andy

x4 objective, QHY6 mono camera:

x4 objective, Bresser Mikrocam SP5.1 colour camera:

x32 objective, QHY6 mono camera:

x32 objective, Bresser Mikrocam SP5.1 colour camera: