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About petek314

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    Astronomy, Sailing, Mountaineering, music
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  1. I have had 9 sessions so far. These are mostly double stars and lunar but I do have the advantage of sliding the roof across if I have the odd rain shower. In the last few weeks in Shropshire we seem to have clearer periods in the evening than in the daylight.
  2. I don't know how valid the results would be but I was wondering whether I could use the Star Analyser and just read the magnitude obtained at the V frequency. I think I will have to experiment!
  3. I have done some variable star observing but no where near as much as you. I was hoping to try and do photometry but I have a DSI IIc colour camera which apparently is not ideal. It will be interesting to see how you get on with this and how accurate your measurments are. Good Luck, Pete
  4. Thanks I have recently joined the astronomical spectroscopy group and find its a mine of information. Steve Shore gives an interesting explanation of the science involved in the Nova's spectra.
  5. I have been following Nova Del 13 for several weeks and thought I would submit my results for 29th Sept. When the Nova was brighter I was able to use my Meade LPI camera but now it has faded to 8.5 I had to use my Meade DSI IIc camera. The DSI does not seem to have the definition of the LPI although in theory I think it should be better. Perhaps the exposure/focussing needs attention. Anyway I am amazed that with very simple equipment I can clearly see the emission lines of a distant nova. I estimated the magnitude on this night as 8.5 with comparison stars of 80 and 90 although on the same ni
  6. I agree, on the 29th Sept I estimated 8.5 with comparison stars of 80 and 90. I noticed that some of the latest observations on AAVSO were near 8.9 but I still sent mine in to the website as 8.5. The spectrum is still showing strong H alpha, H beta and [O I]? lines. I am a novice in spectrography and the identification of O I hopefully is correct.
  7. Hi I have the skywatcher 12 inch goto. I am not aware of any excess noise from motor gears etc when I push the scope round manually. if you have already solved the problem then great. Otherwise I will get my scope out and try and film the manual goto action. Not sure whether that will help. I am very pleased with the fact that I can manually goto an object and then when in close proximity I can send the scope on goto to centre the object. This prevents noise disturbing neighbours because the auto goto is of short duration and usually slow speed. The noise of the goto is not that loud but I am
  8. I have just been looking at the calibration of my spectra and it seems that I have only processed the red image. Back to the drawing board!
  9. It was nice to see your spectra of Nova Delphinus. I made an attempt on 19/8/13 and got similar results using a star analyser. I haven't used it for a long time so it was nice to compare your results with mine. I seem to have a lot of noise but the general shape seems to compare. novadelR131.bmp
  10. Thats a relly beautiful shot. My favourite part of the UK.
  11. Graham, I have the 300p Goto truss mounted scope. When you mentioned you had trouble focussing it reminded me of something I found odd. When I slide out the truss on mine I reach a point where the mount clicks. At this point it is not at its fullest extension so I pull it out further and then set the lock screws. At this distance it seems to focus ok. I find it puzzling that the scope has the click point a few centimetres before its fullest extension. Do you use this click point or do you extend the truss to its maximum? Thanks Pete
  12. James, as you say M83 might be difficult. Probably a good excuse to holiday in the south of France!
  13. I have about 20 left. Most of these are in the Southery constellations but I had missed M102 which I thought was a duplicate of M101. I will try for NGC5866 which I believe may be M102 but not completely sure. I was pleased to finally see M104 (Sombrero Galaxy) last night. I had attempted to see this object before but it was always just below the rooftops. I worked out that if it was clear at 1.30 this morning then I should be able to see it. I set an alarm to wake me up and with my 12" dobo I starhopped from Spica and it was reasonably easy to find. The sky was much darker and clearer at this
  14. Thanks for your comments Iddy
  15. I thought I would share this image of the Hyginus Rille which I find is a fascinating area of the Moon. It is supposed to be volcanic in origin, unlike other craters caused by impacts. Image was taken 17/2/13 with an Orion Starshoot IV and 2x Barlow using my 12" Skywatcher.
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