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Gina

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Everything posted by Gina

  1. There is another thing I need to look at and that's the sump pump that pumps water out of the foundations of my observatory. I checked this afternoon and it wasn't working. The water was nearly up to the main beams that support the floor. Whether it had been higher earlier I don't know.
  2. I think I shall be saving up for another ASI 1600MM-Cool and make a triple imaging rig then I won't need a filter wheel. Just one filter in each imaging section.
  3. Well, Dave, seeing as you're west of me and the weather tends to go in that direction I think you are right! Tonight has been a complete washout! Literally!!
  4. Maybe I should change my priorities! Get the ROR automation and remote control working and maybe the ASC rather than the all out attempts at imaging!! Trouble is, we're running out of DSO imaging time this season. I'll sleep on it...
  5. I left the mount powered up with the thought that the warmth generated would keep it dry inside. How I'm wondering whether to turn it off and rely on the dehumidifier to keep it dry.
  6. Just checked the forecasts again and all that green for tonight has disappeared from CO and the Met Office forecast now shows just one hour clear around midnight!! So I guess that's it for tonight!
  7. Had a look at the RPi and there's wet in places. Evidently needs better rain proofing!! If that's possible. Better idea would be to avoid subjecting the imaging rig to rain, sleet or hail!!! Errrr!!
  8. Just back indoors and it's raining again.
  9. I have a problem. Had a look at KStars and saw the pointing was way past the meridian so I tried to slew and go round the other way. Nothing. Found nothing was working so dressed up and went out to the observatory to investigate. Things looked normal except for the wet floor and some wet on the rig. Tried switching the imager off and on again but no drive green LED. Now brought the control unit (with RPi etc.) indoors to fault-find. Put the dehumidifier on to dry the scope room and wet off the outside of the mount cover and rest of the imaging rig. Whether I get anything ready for later tonight remains to be seen...
  10. Just had a look outside - quite a lot of clear sky but not to the west so I guess there's more rain, sleet or hail on the way. I want photons!!! Through my lens!
  11. Might get a couple of hours a bit later...
  12. The showers or thunderstorms are going on longer it seems.
  13. Looked out just now and the stars were out again but now it's raining. I'll see what it's like after 8pm.
  14. Rain seems to have stopped. There was a lot of wind with that little storm!! Forecast says it should be better later.
  15. I'll wait and see what it does. Had a polythene cover over the rig and mount so rig kept dry.
  16. Had an emergency dash out and close roof!! Sudden thunderstorm with sleet and a few seconds powercut indoors. Very strong wind with it too.
  17. Running... Imaging Orion in OIII. KStars FITS Viewer autostretch.
  18. Observatory roof is now open after over a week of lock-down!!
  19. The sky is clearing here. Already lots of clear sky. I'm going out to open up shortly. I shall be finishing my remote roof control in the next few days with any luck.
  20. ATM I have a filter wheel on each camera but I don't have enough filters to need two filter wheels. With camera lenses I can only do narrow band as they are not apochromatic down into the deep red. For LRGB eg. for galaxies I need an APO telescope. So I only need Ha, OIII and SII. This means a single filter for one camera and two in a filter wheel for the other. I shall have to decide on which filter goes where. Since OIII and SII need more imaging time than Ha and also both seem to need the moon out of the way I think I need both available at the same time. That just leaves the Ha. I think that will go on the same camera as the SII since some DSO have negligible SII and this it makes sense to be able to image Ha and OIII at the same time. This also means less focus change as Ha and SII are both in the deep red.
  21. I rotate the entire imaging train - camera, filter wheel, lens and remote focuser system. All optical components are solidly screwed together.
  22. Forecast for tonight has improved.
  23. I can see my project list stretching into infinity!!!
  24. I think with relatively small telescopes like the ST80 is should be possible to arrange to rotate the whole scope and imaging system. That would solve the problem of the integrity of the optical train. It would still be a pretty massive piece of engineering though.
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