The heavens declare the glory of God and the firmament showeth His handiwork. Psalm 19:2
Homepage of John
Houten, The Netherlands
Last updated 22 June 2022
Solar System (2001 - 2022)
Deepsky from 2021
Classical Astrophotography with film (1990-2000)
Solar Systems Objects
Deepsky Objects - Nebulae
Deepsky Objects - Galaxies
Deepsky Objects - Star Clusters
Photo: Jørgen Krielen
Asteroid 9703 Sussenbach by Willem Kivits
Since 1983 I did deep-sky photography using film, but in 2001 I set my first steps in the digital world and focused on the Solar System. My pictures using film photography are
found at my homepage
For digital imaging I initially used a Celestron C5 (aperture 5 inches) f/10 and a 32 cm f/4.7 Newton telescope. Most results currently presented are produced with the C5,
because this is a very useful instrument for a beginner in WebCam imaging.To extend the focal lengths of the instruments a Meade 2x Barlow lens was used.
As a recording instrument I use a Philips ToUcam Pro camera. Later on, I use a Celestron C11 Schmidt-Cassegrain telescope with a focal length of 2800 mm.
Most of the time I take about 100-200 exposures of 1/25 sec and combine the pictures using the
AstroStack program of R.J.Stekelenburg.
Since 2015 I use a Celestrion C14 Schmidt-Cassegrain telescope.