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billyharris72

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Topics posted by billyharris72

  1.  

    Petition to regulate light pollution 1 2 3 4 35

    By billyharris72, in The Astro Lounge

    • 855 replies
    • 38,142 views
  2.  

    Aldi Maginon spotting scope

    By billyharris72, in Member Equipment Reviews

    • 3 replies
    • 11,868 views
  3.  

    Is this a problem with my flat frames

    By billyharris72, in Getting Started With Imaging

    • 16 replies
    • 8,413 views
  4.  

    How to interpret field curvature? [ED72 + OVL] 1 2

    By billyharris72, in Getting Started With Imaging

    • 28 replies
    • 6,476 views
  5.  

    Benefits of goto? 1 2

    By billyharris72, in Getting Started General Help and Advice

    • 46 replies
    • 2,932 views
  6.  

    Why is spectral flux density calculated per unit wavelength?

    By billyharris72, in Physics, Space Science and Theories

    • 10 replies
    • 2,295 views
  7.  

    Halo around bright stars in Ha

    By billyharris72, in Getting Started With Imaging

    • 12 replies
    • 2,066 views
  8.  

    Worst seeing ever 1 2

    By billyharris72, in Getting Started With Observing

    • 28 replies
    • 1,743 views
  9.  

    Best time to look for Hadley Rille

    By billyharris72, in Observing - Lunar

    • 9 replies
    • 1,736 views
  10.  

    Advice on mono camera

    By billyharris72, in Getting Started With Imaging

    • 17 replies
    • 1,669 views
  11.  

    Photometry woes - can anyone advise

    By billyharris72, in Observing and Imaging Double and Variable Stars

      
    • 9 replies
    • 1,617 views
  12.  

    Photometry software options

    By billyharris72, in Observing and Imaging Double and Variable Stars

    • 4 replies
    • 1,557 views
  13.  

    Thoughts on a compact tripod for ST80

    By billyharris72, in Discussions - Mounts

      
    • 4 replies
    • 1,503 views
  14.  

    How does radiation heat a gas?

    By billyharris72, in Physics, Space Science and Theories

    • 4 replies
    • 1,366 views
  15.  

    UFO near Mars. Any ideas?

    By billyharris72, in Getting Started With Observing

    • 24 replies
    • 1,304 views
  16.  

    Core collapse confusion

    By billyharris72, in Physics, Space Science and Theories

      
    • 11 replies
    • 1,264 views
  17.  

    Just moved to S Wales

    By billyharris72, in Topics

    • 3 replies
    • 1,232 views
  18.  

    Energy, mass and velocity

    By billyharris72, in Physics, Space Science and Theories

    • 15 replies
    • 1,219 views
  19.  

    Must ... restrain ... myself ....

    By billyharris72, in Discussions - Scopes / Whole setups

    • 17 replies
    • 1,198 views
  20.  

    Can I control a Nikon D3300 from Astroart?

    By billyharris72, in Discussions - Software

      
    • 3 replies
    • 1,197 views
  21.  

    Advice on what to read next?

    By billyharris72, in Physics, Space Science and Theories

    • 13 replies
    • 1,136 views
  22.  

    Inflation is doing my head in

    By billyharris72, in Physics, Space Science and Theories

    • 12 replies
    • 1,124 views
  23.  

    Struggling to get colour files in IRIS

    By billyharris72, in Imaging - Image Processing, Help and Techniques

    • 3 replies
    • 1,117 views
  24.  

    Last night I learned a lesson and saved some money....

    By billyharris72, in Getting Started With Observing

    • 22 replies
    • 1,116 views
  25.  

    A coma corrector conundrum

    By billyharris72, in Getting Started With Imaging

    • 13 replies
    • 1,105 views
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