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Merlin66

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Posts posted by Merlin66

  1. Thanks.

    I was committed to A-P for over ten years before turning to spectroscopy.

    The challenge of science and technology I found met my needs.....after ten years I’m still 100% convinced that spectroscopy is an ideal area where serious amateurs can contribute to some serious research.

    Try it, you may find it satisfying.....

     

    • Like 1
  2. Helen,

    2sec would have been a better starting point...

    The Vega spectrum although well positioned, is blown out and over exposed.

    Looking in the background you can see some fainter spectra which show some detail...

    The attached (colour) example shows what you should be looking for.

    I use John's BASS Project for all my spectral processing.

    https://uk.groups.yahoo.com/neo/groups/astrobodger/info

    Onwards and Upwards.

     

     

    Vega_overexp.JPG

    background spectra.JPG

    vega_focused_AA7_profile.JPG

  3. I use CdC but similar process.

    Connect up your mount, double check the comms port.

    Open the planetarium program, look for connect telescope, open and select EQMod ASCOM HEQ5/6, select properties and ensure all the settings are correct. then connect the telescope...

    The EQMod control screen should come up.

     

    (I've had to use the sim, not in the observatory at the moment, but you get the idea)

    EQMod setup1.JPG

    EQMod setup2.JPG

    EQMod setup3.JPG

    • Thanks 1
  4. Stu,

    It's the chemical makeup up of the glass, it can be hydroscopic and absorb moisure.

    The older green photometric filters had the same problem.

     

    I thought Lunt were automatically replacing failed filters at no charge????

     

     

  5. The lunt blocking filter design uses a Schott BG38 blue glass element to replace the original ITF designed element.

    Coronado still use an ITF design.

    Both unfortunately are prone to deterioration, thought to be caused by moisture ingress. It's recommended that the BF be stored in an air-tight container with silica gel when not in use....

     

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