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About Johnboy2011

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  1. Altair Astro Skyshed 8" pier in as new condition. Located in Poole, Dorset. Buyer to collect. £375.00 Cheers, John Pictures added
  2. Lunar grey walls with white dome. Located in Poole, Dorset. Buyer to collect and dismantle. £1750.00 Cheers, John Pictures added
  3. I recently had exactly the same issues as you describe and went for this one http://www.maplin.co.uk/30a-13.8v-switching-power-supply-509268 It is capable of more than 13.8 volts though so you need to keep it set to the 13.8v position (switch on back) John
  4. Hi Zakalwe, Thanks for the reply, I had opened each sub first in Gimp and narrowed it down. In fact I have thrown loads away as Artemis was struggling with a bad USB connection. I have only left myself with about 4 300 second subs of red which I know won't give me an amazing image but wanted to learn the stacking procedures. Could it be that 4 subs is not enough?! Thanks, John
  5. Hi Olly, Thanks for the reply, I was trying to stack separatley. I have managed to stack and save the luminence and cleared the list except for and unchecked luminence frame which I am using as reference. The wheels fall off when I try and stack the red, I'm stumped! John
  6. I'm trying to stack my first LRGB CCD image and I've hit another wall! I've successfully stacked the luminenece but the red will only stack one sub as it says not enough stars are detected. I have the slider set to minimum at 2% and DSS computes 41 stars when I ask it to check which should be enough? I have been following the settings in this tutorial: http://lightvortexastronomy.blogspot.co.uk/2013/01/tutorial-registering-and-calibrating.html The red data is binned 2 x 2 as are the flats and bias frames that I'm stacking with it. Any ideas??!! Thanks, John
  7. Ah, thinking about it is the problem that I shot the RGB flats 1 x 1 and not 2 x 2 to match? If that's the case I suppose I should re-shoot them at 2 x 2, also I would need a set of Bias 1 x 1 for the luminence and another set at 2 x 2 for the RBG? Am I on the right track?! John
  8. Just to clarify it is just the RGB which is binned 2 x 2, luminence, flats and bias are 1 x 1. I assume there is a way around this in DSS? Thanks, John
  9. Sorry yes i have binned, luminance is 1 x 1 but RGB is 2 x 2. What do do next?! Thanks, John
  10. I am using LRGB data for the first time and I'm a bit stuck. I have registered and stacked the luminence data with the luminence flats and bias frames. i am trying to do the same now with the red lum, red flats and bias but get the error message "The checked picutures are not compatibles". Do you know where I'm going wrong, I'm guesssing it is simple?! Thanks, John
  11. I don't have a separate mains supply yet so tried again after charging the tank for 24 hours. I ran the sequencer to collect flats and after about 15 flats the same happened again. It sounds like my next step is to try the camera routed directly to the laptop on its own and leave everything else that is working through the hub. Hopefully I'll get a chance to try that tonight and report back, thanks for the help. John
  12. Thanks Andy, interesting to see you still had a problem through the powered hub, I was hoping that would solve it! John
  13. I tried Artemis again last night but encountered the same problem as the first time I used it. After an hour or two even though I could still see it cycling through the sequence it was no longer registering the pictures is the display window. I checked in the file they were being saved to and the latest FITS files were blank (black) there too. Some images prior to this were banded across the width. On my first session I thought that this was due to using an unpowered hub which I have now swapped out for powered version. (This seemed to work as I no longer had issues with PHD or CdC dropping ou
  14. Ok, I think I may have this. I think it may be dodgy USB after a bit of testing today, more experiments required! John
  15. Just to add when I ask how to take flats I mean specifically in Artemis. With the Canon I used APT which was pretty much an automatic function.
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