North American Nebula

SGL 2017

Myself and Nick went to the SGL 2017 event in Lucksall for a weekend in October. The weather was very cloudy for most of the time but we had a very brief period on the Saturday evening where the cloud dissipated. This led to panic stations getting polar aligned and maximising the number of images. I had decided on the North American Nebula as it had just passed the meridian at the point of clearing and I didn’t want to footer around with a meridian flip half way through. I set up to do 30×8 min exposures but sadly the weather started to cloud over again after the first hour or so. I managed to capture 6×8 min subs which I stacked on DSS. I was using a Takahashi fsq 85 and modified canon 6d with an Idas D1 filter.

 

 

 

 

5 Responses

  1. PHD version 1 or 2….?
    Do you have a screen grab of the settings you used or were they default?
    Separate guide scope I presume….?
    D

    1. Yea seperate guide scope. Using the 11″ with focal reducer and 2×2 binning on camera . I only do that because I don’t like to change anything on the mount. In effect I’ve got one widefield scope and one high resolution and I use either for guiding depending on what image scale I want. It’s PhD 2 . I first run the mount unguided with PhD recording the Periodic error and gear harmonics. The guiding assistant will recommend settings for my circumstances (backlash, seeing, pixel scale etc). I also use PhD log viewer and Pempro to correct the mounts periodic error and null the gear harmonics.

  2. Great FOV Ken !
    Was that with the reducer, or at native focal length..?
    I’m presuming it’s on your Celestron mount, so you’ve sorted your teething issues then…?
    Was the image guided..?
    Did you process the lights with flat and dark/bias frames..?
    Damian

    1. Hi Damian, native focal length for this one. It’s on the celestron mount, which was resolved some time ago. Turns out it was a faulty Pittman motor from the US. I was using PhD to guide although with the pixel scale I could probably do a few mins unguided (not tried tbh PhD is just so easy to use). I processed in as many lights/bias/dark frames although I’ve clearly got a lot to learn !

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