Masahito Niikawa (280mm SC, Digital still camera Minolta DimageEx1500)
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Mars on Feb.24, 2001
Ls = 122.0, De = +7.2, Dia = 7.5"
Near IR Images
R64 filter
(640nm - 1000nm)
[R1]
2001/02/25 04:25:44 (JST)
2001/02/24 19:25:44 (UT)
CM = 33.2
12 frames composite
[R2]
2001/02/25 05:32:18 (JST)
2001/02/24 20:32:18 (UT)
CM = 49.4
6 frames composite
[R3]
2001/02/25 06:22:19 (JST)
2001/02/24 21:22:19 (UT)
CM = 61.6
19 frames composite
Blue Images
B390 filter
(360nm - 500nm)
[1]
2001/02/25 04:50:29 (JST)
2001/02/24 19:50:29 (UT)
CM = 39.2
21 frames composite
[2]
2001/02/25 05:47:34 (JST)
2001/02/24 20:47:34 (UT)
CM = 53.1
40 frames composite
[3]
2001/02/25 05:56:41 (JST)
2001/02/24 20:56:41 (UT)
CM = 55.3
34 frames composite
Observer:Masahito Niikawa Sakai Osaka JAPAN
Email:zba03198@bird.zero.ad.jp
Obs.site : Mozuhonmachi Sakai-City Osaka Japan
Telescope : C11 (SC) D=280mm fl=2800mm
[Blue Images]
Camera :Minolta DimageEx1500 Digital Camera taking lens removed
CCD; ICX205AL (Sony Monochrome CCD)
Effective F No.: 36 (XP24mm Eyepiece Projection)
Filter: B390 (360nm - 500nm)
Exposure :1/4 sec
[Near IR Images]
Camera :Minolta DimageEx1500 Digital Camera taking lens removed
CCD; ICX205AL (Sony Monochrome CCD)
Effective F No.: 36 (XP24mm Eyepiece Projection)
Filter: R64 (640nm - 1000nm)
Exposure : 1/30 sec
Analog gain: 6dB
Seeing = 2~3/10
Transparency = 4/6
Image Processing;
Enhanced with the unsharp masking method
after composite of the original taking images.
Caption:
Wind hard, bad conditon.
Coud over Tharsis is prominent.[B1], [B2], [B3]
What is bright area on terminator [R1}, {R2} ?
Dark in blue images [B1], [B2].
Some kind of yellow cloud ?
説明
風が強く、条件は悪い
Tharsis上空の雲が顕著である。[B1], [B2], [B3]
欠け際の明るい領域は何か[R1}, {R2}
青画像では暗い[B1], [B2]
一種の黄雲か?
当夜はシーイングが悪かったですね。
でも、なんとか処理できています。
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