ALPO-Japan: Jupiter Section (November 21, 1999)

1999”N11ŒŽ21“ú‚̖د

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T.Ikemura, M.Niikawa, K.Maeda

November 21, 1999(UT)

Summary
Toshihiko Ikemura (310mm Newton, Digital still camera NEC Picona)

No.173 1999/11/21 10:59:52(UT)
I=168.3 II= 97.8 III=328.5
De=+3.3 Dia=48.05"
310mm Newton(F5)
TeleVue barlow 5x (f/31)
1 deg. prism
NEC PICONA 1/7sec
5 frames composite


No.174 1999/11/21 12:08:20(UT)
I=210.0 II=139.2 III= 9.9
De=+3.3 Dia=48.05"
310mm Newton(F5)
TeleVue barlow 5x (f/31)
1 deg. prism
NEC PICONA 1/7sec
4 frames composite


No.175 1999/11/21 14:27:46(UT)
I=223.4 II=223.4 III= 94.2
De=+3.3 Dia=48.05"
310mm Newton(F5)
TeleVue barlow 5x (f/31)
1 deg. prism
NEC PICONA 1/7sec
5 frames composite

Masahito Niikawa (280mm SC, Digital still camera Minolta DimageEx1500)
1999/11/21 12h58m15s(UT) I=240.4 II=169.3 III= 40.1 8 frames composite
1999/11/21 13h05m50s(UT) I=245.1 II=173.9 III= 44.7 6 frames composite
1999/11/21 13h32m43s(UT) I=261.5 II=190.2 III= 60.9 7 frames composite
1999/11/21 13h40m00s(UT) I=265.9 II=194.6 III= 65.3 7 frames composite


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 : 1/8 sec, Analog gain:6dB
Seeing:3/10 Transp.:3/6
Image Processing
The Maximum Entropy Method deconvolution after composite of the original taking images. And enhanced with the unsharp masking method.
Kazuyoshi Maeda (350mm Newton, Digital still camera NEC Picona)

No. 74 1999/11/21 13:11:38(UT)
I=266.9 II=195.6 III= 66.3
350mm Newton(F5), f/30
NEC PICONA 1/7sec
5 frames composite

Enhanced by Y.Iga
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