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ALPO-Japan Latest
Saturn Image 2001/12/18(UT)

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M.Niikawa
Masahito Niikawa (280mm SC, Digital still camera Minolta DimageEx1500)


Saturn on Dec.18, 2001
De = -28.4, E.Dia = 20.4"

[R1]
2001/12/18 14:57:48 (UT)
CMI =  16.1, CMIII = 281.3
11 frames composite

[B1}
2001/12/18 15:47:38 (UT)
CMI =  45.3, CMIII = 309.4
21 frames composite

Observer:Masahito Niikawa
Email:zba03198@bird.zero.ad.jp
Obs.site : Mozuhonmachi Sakai-City Osaka Japan
Telescope : C11 (SC) D=280mm fl=2800mm

Camera:Minolta DimageEx1500 Digital Camera taking lens removed
CCD:ICX205AL (Sony Monochrome CCD)

Blue Images
indicate [B]
Filter: B390 (360nm - 500nm)
Exposure :0.5 sec
Effective F No.: 44 (XP24mm Eyepiece Projection)

Near IR Images:
indicate [R]
Filter: R64 (640nm - 1000nm)
Exposure : 0.3 sec
Effective F No.: 44 (XP24mm Eyepiece Projection)

Seeing = 5/10
Transparency = 4/6

Image Processing;
Software binning.
Enhanced with unsharp masking method.
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