Last seen: Jul 11, 2020
@andy-sawers Star radii: Stephenson 2-18 has >2000 times the radius of the sun - that's twice from the sun the distance to Jupiter... This shou...
@andy-sawers Hi Andy, 1) Both dark matter and dark energy contribute to the critical mass of the universe, i.e. to the fact that it is almost ...
But definitely nice in a super-clear and super-warm summer night!
Indeed. You just have to get yourself into a place far enough away from London. :-) BTW, the pictures uploaded before had a tint - this is the right ...
A word of warning - a "normal" neutral density filter will absorb enough light from the sun to be able to take a picture - but you might want to test ...
14mm is really wide - the moon is about 60° over the horizon, so the picture reaches from the horizon well over the zenith. Scorpio is visible just un...
Hi Christina, I am a new member (you may remember my twins from the Venus observation last year). Instead of a tracking mount for the camera alone, ...