18 October 2023

Lunar X and V on October 21st

 

The Moon is a fantastic target for anyone with a telescope or binoculars. There is so much richness to see and on any night the Moon presents an ever-changing landscape, each night different from the previous one. I particularly like first and last quarter moons, as you get a side view of the terminator and can observe the long shadows in the craters. But those shadows and the rapidly changing lighting effects on and near the terminator create striking patterns for those with a good telescope. 

Lunar X and V
The Lunar X and V are two striking patterns that appear monthly on the surface of the first quarter Moon. Visible through a telescope at moderate magnification, these two patterns are visible for a few hours, one after the next, but of course you need to have the good luck of the Moon being above the horizon at that exact time each month. So it is a somewhat rare occurrence and a fun target for amateur astronomers, or just about anyone who wants to put in the time to find it. Enlarge the image to the right for a close-up look. 

This month the view is favourable where I live, here in Munich, Germany. On Saturday October 21st the X and V features will be visible just at sunset and for an hour or two afterwards. I will host a star party in the Englischer Garten in Munich for the public and I hope that many will join to see this unique spectacle.  

19 April 2023

Total Solar Eclipse in Australia: watch live

As an Eclipse Chaser, I often travel long and far to see a total solar eclipse. Today is no exception, as I find myself in Western Australia to witness the Ningaloo Solar Eclipse from Exmouth. There are several live streams: 

NASA

Australian Geographic 

Happy viewing. I'll post comments later. 

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Here is my report from later on 20 April: it was an impressive eclipse, with a very sharply defined corona. The prominences were like I have never seen before, with one very extended prominence and one beautifully curved prominence that had a broken filament. The sky was crystal clear and the spectators at my site here in Exmouth were quite excited by the whole thing. 

I have added two photos from the photographers next to me. The one above shows the Diamond Ring effect, and the one below totality with the solar corona.