I love Europe. That’s my reason for hoping Britain will vote, on June 23, to stay in the European Union.

So I leave to Continue reading “Brexit will break it”
Guy Ottewell's website and weblog
I love Europe. That’s my reason for hoping Britain will vote, on June 23, to stay in the European Union.

So I leave to Continue reading “Brexit will break it”
To return to the subject of how orbits appear when plotted geocentrically (that is, with the Earth stationary).

Slug, Toad, Leech, Spider, Earthworm – these were some of the thirteen constellations Continue reading “Nasty Constellations”
Mars continues its high season of observability, indeed is still coming slightly nearer than it was at opposition a few days ago, as well as being free of the Full Moon’s glare. Continue reading “Earth-Centered Swirlings”
Get ready for the opposition of Mars on Sunday May 22, and even better later.
It’s Spring Astronomy Day, and this is the sky scene that should greet you as evening falls.

I was wondering when someone would ask me what that picture is, Continue reading “Tocra Pass”
Fred Schaaf in his Sky & Telescope column for this month looks back fondly on the great comet tails that graced the May sky 33 and 30 years ago – Iras-Araki-Alcock and Halley – and then points out Continue reading “Tails in the Sky”
The boom of a cannon shook my window Continue reading “Vikings come raiding again”
On Monday May 9 comes the passage of the pinpoint black planet (here shown 5 times larger than scale) across the vast boiling face of the Sun.
