Saturn Section: October 20, 1999

1999”N10ŒŽ20“ϊ‚Μ“y―

’r‘Ίr•FAVμŸm
T.Ikemura, M.Niikawa

Toshihiko Ikemura (310mm Newton, Digital still camera NEC Picona)
Condition:
1999/10/20(UT)
14:45:50(UT) I=118.2 III=213.5,  8 frames composite


De=-22.3  E.Dia=20.06"
Ring Long  dia 45.72"  Ring short dia 17.36"  
310mm Newtonian(F5)
TeleVue barlow 5x  f/30
Digital camera NEC PICONA 1/7sec
Masahito Niikawa (280mm Schmidt-Cassegrain, Digital Still Camera Minolta Dimage EX1500)
Condition:
1999/10/20(UT)
 16h37m30s(UT) I=183.6 III=276.4,  4 frames compsoite
 17h02m22s(UT) I=198.2 III=290.4,  8 frames compsoite

Seeing = 5/10 Trans.= 4/6
All images are taken with ;
Telescope : C11 (SC) D=280mm fl=2800mm
Camera :Minolta DimageEx1500 Digital Camera taking lens removed
Effective F No.: 25 (XP24mm Eyepiece Projection)
Filter: IR cut & Low-pass built-in the camera
Obs.site : Mozuhonmachi Sakai-City Osaka Japan
Exposure : 1/3 sec or 1/4 sec
Analog gain: 6dB
Image Processing;
  • Enhanced with the unsharp masking method (the left image)
  • Blue channel contrast of the left images are enhanced (the right image)
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