Category | Troubleshooting

Showing posts from category: Troubleshooting

New CCD camera…new & old challenges.

On march 30th, 2013, after the acquisition of my new CCD camera (i.e. the SBIG ST-8300M, the filter wheel and filters), with the weather looking promising, I carefully planned an imaging session with the goal of capturing LRGB data of the Sunflower Galaxy (i.e. Messier 63). I used CCD Commander to automate the acquisition of the following frames: 20 X 6 minutes

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Elongated Stars – Problem solved

Early last week, in my quest to find the source of my elongated stars problem, I was doing research on the internet when I came across a paper by Craig Stark titled: “What to do When PHD Guiding isn’t Push Here Dummy“. In his paper, Mr. Stark discusses the possible effect of gravity on stars

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Still suffering from elongated stars due to differential flexure

This week, the weather has been very good…it’s the fourth clear night in a row. Futhermore, I am attending a CCD conference on Saturday…what more could you ask to satisfy an astrophotographer? On October 25th, I contacted Moonlite Telescope Accessories about the broken bearing on my focuser, Ron Newman replied on the 27th telling me to ship the focuser to him and explaining

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Elongated Stars – Focuser problems

Last night, in order to try to reduce the differential flexure problem that have been plaguing me, I replaced the guiding camera 2″ extension tube I was using with the ED80T CF  with a 1.25″ diagonal with the hope to be able to move the draw-tube more into the focuser. With the 2″ extension tube, my draw-tube was

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Elongated Stars – Further Analysis

Monday night, I decided to conduct a quick test to confirm whether or not the modifications (IR filter removal and cooling) of my Canon 350D had indeed introduced tilt of the CMOS assembly. Here is what I did: I replaced my modified 350D with my non modified 450D; Focused; Took 15 unguided images of 10 seconds each, near

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