ALPO-Japan: Jupiter Section (December 27 1999)

1999年12月27日の木星

池村俊彦、奥田耕司、河原義則、B.Colville
T.Ikemura, K.Okuda, Y.Kawahara, B.Colville

December 27, 1999(UT)

Summary
Brian Colville (300mm Schmidt-Cassegrain, Pixcel 237 CCD Camera)
I have attached the first images which I have processed from last night (Dec 27-28 UT). These three images were taken in the near-IR, and cover a span of approximately 2.5 hours. I have yet to process the RGB components, but hope to have them ready tomorrow.

These images show a few interesting features:
1) a number of dark spots in the NEB, SEB and EZ
2) a broad V shaped dark plume(s) along the NEBs extending into the EZ
3) much of the EZ is filled with darker material which I have not seen to this degree before. It almost looks like the space between the NEB and SEB has been filled in.

I will distribute the colour images when I finish processing them.

Brian Colville
Maple Ridge Observatory
www.quicklinks.on.ca/~maple

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

No.199 1999/12/27 09:15:16(UT)
I= 28.0 II= 43.4 III=283.7
De=+3.1 Dia=43.44"
310mm Newton(F5)
TeleVue barlow 5x (f/34)
0.5 deg. prism
NEC PICONA 1/7sec
4 frames composite


No.200 1999/12/27 09:22:44(UT)
I= 32.5 II= 47.9 III=288.2
De=+3.1 Dia=43.44"
310mm Newton(F5)
TeleVue barlow 5x (f/34)
0.5 deg. prism
NEC PICONA 1/7sec
5 frames composite


No.201 1999/12/27 12:00:44(UT)
I=128.9 II=143.4 III= 23.7
De=+3.1 Dia=43.44"
310mm Newton(F5)
TeleVue barlow 5x (f/34)
0.5 deg. prism
NEC PICONA 1/7sec
5 frames composite

Koji Okuda (250mm Newton, BITRAN BT-01 Cooled CCD Camera)

1999/12/27 10h58m(UT) I= 89.3 II=104.2 III=345.6
1999/12/27 11h35m(UT) I=111.8 II=126.5 III= 7.9

250mm Newton, BITRAN BT-01, LRGB
Seeing:5-6/10 Transp.: 10/10

コメント

  • BE FAはハッキリしない
  • GRS北側のSEBsが濃く目立つ
  • GRS後方のSEBは淡く白斑群の活動も弱い /UL>

カラー合成に使用したフレーム
Yoshinori Kawahara (250mm Cassegrain, Digital still camera NEC Picona)

No.19 1999/12/27 11:59:22(UT)
I=128.0 II=142.6 III= 22.9
De=+3.1 Dia=43.32"
Enhanced by Y.Iga

250mm Cassegrain
TeleVue barlow 3x (f/32)
NEC PICONA 1/7sec
3 frames composite

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