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Merlin66

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About Merlin66

  • Rank
    Bright Giant

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  • Website URL
    http://www.astronomicalspectroscopy.com

Profile Information

  • Gender
    Male
  • Interests
    Spectroscopy, Solar observing,- and my wife!
  • Location
    St Leonards, Vic, Australia
  1. Louise, I think you're trying to do much at the same time..... Forget the spectrograph (for the moment) Set up mount, PA, PHD etc using your eFinder...... chose a bright star - Aldebaran? When you can guide on the star, then move to the next issue. Set up to keep guiding on the bright star in the eFinder and then add the spectrograph to the mix. Don't worry about guiding on the slit ....just get the bright star to show in the slit plate - the eFinder should be enough to hold it there.... Nudge the star (using the PHD arrows?) onto the slit gap - no slit guiding at this point - see if the star continue to sit on the slit under eFinder guiding..... it should be pretty close. When you get to this stage you have two options 1. rely on the eFinder guiding to hold the star on the slit and take a spectral image.... 2. transfer guiding to the slit guider, calibrate a second version of PHD2 (I open a new PHD and call it "slit" - I then end up with two PHD options - eFinder or Slit) this should then hold the star on the virtual slit gap. Take a 5 - 10 sec spectral exposure to check on the height of the spectral band - the tighter the band the better you have achieved focusing of the scope onto the slit gap. Softly, softly........ Ken
  2. Well done, mate!! Shows well the capabilities of the LowSpec. What were the stacking issues? Just interested. Ken
  3. IMHO I'd stick with what you have.... It will probably do 99% of what you want.
  4. Louise, How are going? Any updates? Ken
  5. The current V5 Synscan handcontroller should be a direct "plug and play" replacement. Not sure what you mean by ""Synscan base unit" - I see you have an EQ5, so maybe you refer to the added motors and the control board? All the added Synscan features may not be available to you, depends on the motor control board version and firmware. I'm still using V3.27 on my HEQ5 and NEQ6pro mounts. Works for me.
  6. Pete, I use a BF15 on my set-up, no issues with vignetting. I also regularly use a x2.5 Powermate, again no issues.
  7. To be honest only for visual...but I do of a few who have had some exciting images from it.
  8. OK, I should have guessed - good Pommie humour!!! IPA = ""Iso Propyl alcohol"
  9. I'm still using Synscan V3.27 on both my HEQ5 and NEQ6pro mounts...... not an issue.
  10. I still have one of the original Meade Comet Seekers - Schmidt-Newtonian 6" f3.5. If yours performs as well as mine - you're in for an exciting time.
  11. Pete, I use a Coronado BF on my SM60 DS set up..... and yes the 1.25" nose piece on the ASI 174. Nowadays I've added an ASI 1600MM as well.
  12. Lawrence, Doesn't do any harm leaving it on the PC - you'll never use it. Make sure you have the latest ASCOM installed, and the EQAscom files. Best used with a planetarium interface - I use Cartes du Ciel.
  13. The KimTech wipes are fantastic! Used with IPA, never use them dry! Cleaned my CMOS sensor and filters 100%. I recommend them.
  14. Piero, Didn't work for me.... The holding screws quickly chewed it up.......
  15. Why take bias frames????? There are only of use when scaling darks for different temperatures???? All images include bias. Flats and Flat darks should be all that is ever required. Agree/ disagree??
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