Masahito Niikawa (280mm SC, Digital still camera Minolta DimageEx1500)
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Mars on Feb.22, 2001 Ls = 121.0, De = +7.6, Dia = 7.4"
2001/02/23 03:53:18 (JST) 2001/02/22 18:53:18 (UT)
CM = 44.4 ,5 frames composite
2001/02/23 04:21:01 (JST) 2001/02/22 19:21:01 (UT)
CM = 51.2 ,10 frames composite
2001/02/23 04:14:56 (JST) 2001/02/22 19:14:56 (UT)
CM = 49.7 ,28 frames composite
2001/02/23 04:30:59 (JST) 2001/02/22 19:30:59 (UT)
CM = 53.6 ,55 frames composite
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 :1/3 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 : 1/15 sec
Analog gain: 6dB
Obs.site : Mozuhonmachi Sakai-City Osaka Japan
Observer:Masahito Niikawa Sakai Osaka JAPAN
Email:zba03198@bird.zero.ad.jp
Seeing = 6/10 Transparency = 2/6
Image Processing;
Enhanced with the unsharp masking method
after composite of the original taking images.
Caption:
No wind, but transparency is not good.
At Martian southern limb cloud is noted [B1], [B2].
Mare Erythraeum noted very dark towards the terminator [R1], [R2]
even in the Blue Images [B1], [B2]
Tithonius Lacus noted as small dusky spot
which is extend from Aurorae Sinus [R1], [R2].
Taumasia Foelix is not so brght in blue images [B1], [b2]
Cloud clear ?
Mare Acidarium is dark, Nilokeras is separated from Mare Acidarium.
[R1], [R2]
Tharsis is extremely bright [R1], [R2], [B1], [B2].
Equational Cloud Belt is brilliant [B1], [B2]
Tempe is bright in red images [R1], [R2].
North Polar Cap is not seen.
説明文;
無風であったが、透明度は良くない。
火星の南のリムには雲が見られる [B1], [B2].
Mare Erythraeumは、欠際に向かって非常に暗くなっている。
青画像でもそうである[B1], [B2]
Tithonius Lacusは、Aurorae Sinusから延びる小さな暗斑として
見られる。
Taumasia Foelixは青でもそんなに明るくはない。[B1], [b2]
雲が晴れたのか?
Mare Acidarium は暗く、NilokerasがMare Acidariumから分離している
[R1], [R2]
Tharsisはたいへん明るい[R1], [R2], [B1], [B2].
赤道雲が顕著である[B1], [B2]
Tempe は赤で明るい[R1], [R2].
北極冠は見えない
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