Recently I found that the images taken for the Digitized Sky Survey around 1990 are about the same image scale as the images I take now with my TEC-140. So I decided to make a comparison between an image from 1990 and 2013 of NGC 7331 and Stephan’s quintet. It clearly shows the stars are …
Here is a nice image comparison of 1990 Digital Sky Survey data and my image of 16th August 2013: Here an animation is shown of the same area before and after the nova:
A new nova was discovered in the constellation of Delphinus on August 14 18:00 UT. I was able to start imaging within 5 hours of the discovery and gather some nice brightness measurements. Here my latest estimations can be found: The nova is still brightening and now visible with the naked eye. Here is an …
Today there was an item on RTL television about astrophotography and my nomination for the Astrophotographer of the year 2013 competition. It’s in Dutch:
Last night we went with our astronomical society into the Dutch polders to look if we could see some Perseids. Luckily the clouds went away for a few hours and I have been able to see some beautiful Perseids and capture about 10 of them…. And an image showing the rotation of the Earth: Time …
Here are some images taken by Twan Beckers from the astroparty at Halley observatory in Heesch.
NGC 7331 (in the lower left of the image) is a galaxy similar to our own galaxy in the constellation Pegasus at a distance of about 50 million lightyears. It was discovered in 1784 by William Herschel. Below NGC 7331 a few other galaxies can be seen that are part of the so called Deer …
This was my most elusive target until now. Kronberger 61 is a planetary nebula only discovered in 2011 by an amateur astronomer while searching through the kepler satellite imagery. This nebula has a surface brightness of much less than 25 mag/arcsec^2 and therefore is very hard to detect. This image was made using 30 minute …