toml42 Posted July 25, 2010 Share Posted July 25, 2010 2400 mm aperture, focal length 57600 mm, f ratio 24.This is the hubble space telescope, if someone were to modify it so that it could accept eyepieces, a 12mm eyepiece, assuming 100' FOV, would give a 0.5 mm exit pupil at magnification 4800x, with an apparent field of 1.3 arcminutes. For comparison, jupiter is about 0.8you also get a magnitude gain of about 12.6, meaning sirius would appear magnitude -14, compared to the full moon at -12.6. Possible health risk?ok, maybe this isn't the most practical setup... now if someone were to design a 150mm eyepiece it'd fulfil all your low power, wide angle needs, at 384x magnification and a gigantic 16 arcminute FOV!Perhaps a focal reducer is in order... forget virgin galactic, THIS is the kind of space tourism i'd pay for forthcoming James Web Space Telescope is even more fun! 6500 mm aperture 131400 mm focal length, f ratio 20.22... you do the maths Link to comment Share on other sites More sharing options...
toml42 Posted July 25, 2010 Author Share Posted July 25, 2010 gah, sorry, maths fail, added an extra zero somewhere by mistake, correcting... Link to comment Share on other sites More sharing options...
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