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Posts 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.

    • Sad 1

  2. 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...

  3. 40 minutes ago, JamesF said:

    Woohoo!  Just had a wild flash of lightning and lots of thunder followed by all the power going out for about 30 seconds and ice hammering on the windows.  Not prime observing weather.


    Had the same here!!

  4. 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...

  5. 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.

  6. 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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