October 19, 2017

Your Chance to see the “Moons”(?) of Venus!

Two degree FOV on January 13th… north is up.

(Created by the Author in Starry Night).

The planet Venus is going through some pretty fancy sky maneuvering this year. Starting off low to the south in dusk skies, it is about to shoot dramatically to high northerly declinations later this spring, and then dip down to a climatic transit of the Sun on June 5th-6th this summer. [Read more...]

Astro-Challenge: Spot Neptune in its Original Discovery Position!

Neptune on July 17th, 2010. (Created by Author with Microsoft's WWT).

Neptune on the Aquarius-Capricornus border on July 17th, 2010. (Created by Author with Microsoft's WWT).

 

     In this week’s astro-event, we challenge you, the sky watching public, to view the planet Neptune as it was first seen on the night of its discovery on September 23, 1846. On that evening, astronomer Johann Galle turned the Berlin Observatories’ 9-inch refractor on a position given to him by French mathematician Urbain Jean-Joseph Le Verrier, and the solar system hasn’t been the same since. The discovery of Neptune was a triumph for predictive mathematics and a good test of Newtonian mechanics in a celestial format. [Read more...]