|
Scope: 25cm Newton at f/D=46 CCD: FTT1010-M with (now motorized) MYC-colour filter set Exposure: Each colour 5x0.3sec Processing: Unsharp masked |
|
Scope: 25cm Newton at f/D=46 CCD: FTT1010-M with MYC-colour filter set Exposure: Each colour 9x0.5sec Processing: Unsharp masked |
|
Different images made in the 1997-2004 period |
| |
|
Three images from the Jupiter Movie, taken with the FT1020 CCD-camera. Each image is a sum of four exposures of 0.5 seconds and processed with an unscharp mask (Orginal*HF-image). |
|
JUPITER Date: 2 November 1999 around ~22:00 UT Scope: 25cm Newton at f/D=44 CCD: FT800 with colour wheel Exposure: R 6x0.4sec, G 6x0.2sec, B 6x1.2sec Remarks: Each colour unsharp masked |
|
IMAGES taken on january the 23th with the FT1020 colour CCD in Frame Transfer mode (512x512pixels). Especially in case of the
relatively fast rotation of Jupiter, the simultaneous acquisition of the RGB-images is an advantage compared
to using the filter wheel with the monochrome FT800 CCD (top image). In the latter case the rotation of Jupiter
during the time needed for acquiring the successive R,G and B images is usually enough to cause a slight misfit
when combining the R,G and B images to a colour image.
Scope: 25cm Newton at f/D=60 |
JUPITER with EUROPE, GANYMEDE and IO Date: 21 September 1998, 23:40 MEZT Scope: 25cm Newton, Barlow projection at f/D=13.4 CCD: FT800 with colour filter wheel Exposure: Red and Green 0.1sec; Blue 1sec Remarks: Moons of Jupiter from a second, longer exposed image |
|
CONJUNCTION of Jupiter and Venus, 23 February 1999 18:00 UT. FT800 in prime focus of 25cm Newton (f/D=5.7) with BG12-filter to enhance contrast on Jupiter and avoid over-exposure of Venus. Jupiter unsharp masked; Jupiter, moons and Venus are shown with different brightness settings Exposure time: 0.2sec; Field of view: 11' x 15' |
|
|
Object: Mars around opposition (diameter 16.2") Date: 3 may, 26 may, 28 may and 1 june 1999 Scope: 25cm Newton at f/D=44 CCD: FT800 with colour wheel Exposure: R 4x0.4sec, G 2x0.3sec, B 3x2sec Remarks: Sharpened with HF-structure of R-image |
|
Date: end of july 2000 Standard camera with f=50mm objective at f/D=3.5 Exposure: 15 seconds |