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SCHMIDT-CASSEGRAIN
VERSUS HOME-MADE TELESCOPE |
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THE REASON
... OF THE COMPARISON |
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Features |
SCT 8" f /10 |
6" Home-Made
Reflector |
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of both telescopes |
Fork Mounted |
Wooden German Mounting |
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good |
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Finder position |
bad - dangerous |
good |
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Newton Focus F/5,3 |
none |
yes |
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Nasmith focus
clic |
none |
East and West clic |
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Coudé focus |
none |
North and Sud |
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Cassegrain collimation |
difficult |
easy and sure (perforated secundary mirrors) |
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balance weights |
unadecuate |
optimal |
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visibility of 6
Trapetium stars |
possible |
better (Newton focus) |
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Jupiter bands by day time |
visibles |
better (Newton focus) |
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Moving scope in RA and DEC when going |
very dangerous |
no problem |
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WARNINGS |
too many !! |
none - not necessary |
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Breafest way between 2 star separated 10 grad |
10 to 350 grad |
10 grad |
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Current used |
much |
less |
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Focusing |
difficult, causes shift |
ok |
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Pointing polewards with accessories mounted |
difficult to impossible |
no problem |
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Others: focusing knob can be confused with decl. knob, causing damage |
no problem |
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it is
superfluous to say how many advantages the Computer-Telescope has, compared
to the home-made one. |
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