Saturn Section: July 31, 1999

1999”N 7ŒŽ31“ϊ‚Μ“y―

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T.Usude, H.Nakanishi, M.Niikawa, S.Yoneyama


Condition:
1999/07/31 18:38:00(UT) 
I=259.4 III=183.6
7 frames composite

Seeing = 5/10 Trans.= 3/6
All images are taken with ;
Telescope : C11 (SC) D=280mm fl=2800mm
Camera :Minolta DimageEx1500 Digital Camera taking lens removed
Effective F No.: 20 (XP24mm Eyepiece Projection)
Filter: IR cut & Low-pass built-in the camera
Obs.site : Mozuhonmachi Sakai-City Osaka Japan
Exposure : 1/4 sec
Analog gain: 6dB
Image Processing;
*The Maximum Entropy Method deconvolution after composite of the original taking images. And enhanced with the unsharp masking method.
Toshihiko Usude (250mm Newton, Digital still camera NEC Picona)

1999/07/31 18:53:00(UT)
I=268.2 III=192.0
250mm Newton(F7), Or18mm
NEC PICONA 1/7sec, 4 frames composite
Enhanced by T.Usude
Seiichi Yoneyama (200mm Newton, Digital still camera NEC Picona)

1999/07/31 19:00:50(UT)
I=272.8 III=196.4
200mm Newton(F4), LV20mm (f/28)
NEC PICONA 1/7sec, 3 frames composite
Enhanced by Y.Iga
Hidekazu Nakanishi (200mm Maksutov-Newton, Starlight Xpress MX5-C Cooled CCD Camara)

1999/07/31 19:30:18(UT)
I=290.1 III=213.0
200mm Maksutov-Newton(F6), Or12.5mm (f/46)
Stalight Xpress MX5-C, 1sec
Enhanced by H.Nakanishi
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