Silhouettes of Jets Passing in Front of the Sun.
Today, I captured images of jets transiting the sun while looking at the sunspots (we are at or near the solar maximum). I was observing the sun with a Vespera Classic and a Vespera Pro telescope fitted with a solar filter. The exposure time for solar observations with the Vespera Classic telescope is 250 microseconds (1/4000 sec) and with the Vespera Pro telescope is 1400 microseconds (1/714 sec). The Vespera Classic takes 51-52 solar images per minute and the Vespera Pro takes 8-9 solar images per minute.
The same jet appears in the first two Vespera Classic images showing the distance it traveled in ~1.2 seconds. The third image from the Vespera Pro shows a jet with condensation trails. Even though the exposure time is longer (1400 vs 250 microseconds) the image of the jet is still relatively sharp.
