Hi everyone,
I was watching the HST shoot across the sky approaching from the west at around 19.11 to 19.16pm tonight. It travelled up to the zenith where it a short time after it started to fade away as it moved towards the east - further away from the suns light. At near its highest point above me, I noticed its image changed when it flew directly over one of the main stars of Scorpios tail. The image kind of warped into a circle around the star. It seemed to have been travelling in a straight path, then suddenly de-toured a little half circle around the stars point of light. Has anyone seen this effect or something similar ?
If this wasn't a Gravitational lensing effect, has anyone seen one. Is there a DSO where this effect is visible ?
