Saturn Image 2005/11/30(UT)
池村俊彦,
Geert Vandenbulcke,David Arditti,Damian Peach
T.Ikemura,G.Vandenbulcke,D.Arditti,D.Peach
| Toshihiko Ikemura (310mm Newton, ATK-2C 2HS) |
シーイングがひどくて ピントがなかなか合いませんでした。 [T.Ikemura Nagoya Aichi JAPAN] ≪愛知県名古屋市 池村俊彦≫
| Geert Vandenbulcke(280mm SC(C-11);DMK 021BF04 Firewire Camera) |
Image of saturn made on 30 Nov 2005 0415UT.[ Geert Vandenbulcke:Koksijde, Belgium]
| David Arditti (250mm Dall-Kirkham Cassegrain:ATK camera) |
This is Saturn imaged in reasonable seeing last night, from a stack of about 5000 frames taken between 02:17 and 02:42. My best in this genre so far, it shows the Enke division just about on LHS but also some artefactual features. I find Saturn is very difficult to image satisfactorily. The shape of it and the sharp contrasts mean it will take almost no wavelet sharpening without the creation of sharpening artefacts. Therefore sharp images can only be obtained from the addition of huge amounts of genuine data (unless you have brilliant seeing). I am not sure what the scientific value of this is, as any longitudinal features would probably get smeared out over this exposure time. Still, it looks quite nice. Some people like to make it more picturesque by leaving it over at an arbitrary angle.[David Arditti: Edgware Middlesex HA8 5LW: United Kingdom]
| Damian Peach (235mm Celestron SCT:Lumenera LU075) |
Here are two green and a red image from the 30th. Note the small white spot in the mid-SEB zone in the G images.[Damian Peach: Loudwater, Buckinghamshire, United Kingdom]
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