Binary Universe: checking sidereal time

The December 2018 edition of the RASC Journal celebrates our 150 years looking back to its early days and origins to current activities today. I look forward to reading every piece within.

Whoa! A greeting from the only governor general who has flown in space, Her Excellency the Right Honourable Julie Payette! Very cool!

The article by Mr Rosenfeld on art inspired by astronomical things looks fascinating.

Mr MacDonald has returned to masks in photographic image manipulation. I still struggle with this.

In my Binary Universe column, I discuss time, specifically determining sidereal time (as I need to do now when calibrating the DDO's 74-inch mount). I talk about Stellarium, SkySafari, Polar Finder, MySiderealTime, SkyTime, Astro Clock Widget, and Emerald.