Jupiter This Morning

I start practicing the planetary imaging. This was this morning’s result. Tiny!! This is 640×480 full resolution frame from an old cassette tape camcorder anyway.

jupiter020818BORG 107FL + Pentax XP-14 + SONY DCR-PC101 Camcorder at 37mm f.l.

I understood this was too short overall focal length. Just start up to learn.  If I calculate Jupiter’s size at 40″,

(600 x 40″) x (37/14) / 205265 = 0.31 mm

Camcorder’s maximum focal length is only 37 mm. Yes, I wanted to increase the magnification. But problem is the sensor is very small, quite hard to center the target in with a shorter eyepiece. I have to think about having more skill for centering myself.




~ by tedishikawa on February 8, 2018.

6 Responses to “Jupiter This Morning”

  1. Can you shorten the tube enough to fit a flip mirror in the path? Then you can use a reticle eyepiece for aiming precision.

    • Morgan,

      I see. Good point. Let me think about that. I don’t want to make it heavier and further from the focuser though.

      Anyway, thanks for your advice.


  2. Ted,

    That’s a nice, sharp photo. Great equitorial bands. I don’t see anything wrong with it!

  3. If your mount is steady, and tracking is good you can center using lower magnification, and then switch eyepieces to increase magnification. Maybe several steps if required. Works for me (I use powermates (barlow) instead of eyepeace projection, but the principle is the same).

  4. Ted, Are you taking multiple frames and stacking them

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