We (some enthousiastic guys from the Planetary Missions Division of ESA/ESTEC) have observed the Mercury transit in front of the main gate of ESTEC. About 600 people looked through our telescopes... We had set up:
Here are some images obtained with the Astrovid.
A 5" Celestron showing the complete sun in projection; My 6" Meade refractor with a Thousand Oaks glass filter with an Astrovid 2000 video camera, showing the enlarged Mercury on a video monitor, or, for special guests, via a flip mirror in real life; A 10" Meade Schmidt-Cassegrain and an H-alpha filter showing the prominences of the sun.
A mosaic of Mercury, the large single sunspot, and the bipolar group.
|The image with only Mercury can be seen here:|