Here is a puzzle to amuse you. It’s a smallish question on which you might like to test your math. Continue reading “The Speed of the Barycenter”
Category: astronomy
Tri-Saros
The saros, the famous rhythm of similar eclipses a little over 18 years apart, is a fascinating subject with almost endless ramifications, explored Continue reading “Tri-Saros”
Spring Astronomy Day
will be on April 29. Here is how the evening sky will look Continue reading “Spring Astronomy Day”
Comets, and beams to them
Two of the comets that return to us this year come to their Continue reading “Comets, and beams to them”
Overtaking the King
Moon, Regulus, Jupiter
The Moon will pass south of Regulus in the night of April 6/7,
Mercury on April the First
This is the best showing Mercury can make for you this evening: Continue reading “Mercury on April the First”
Venus hurdles the Sun
In the famous eight-year cycle of Venus, 2017 Continue reading “Venus hurdles the Sun”
Spring coming, Venus going
The spring or vernal equinox is coming, on Monday March 20, Continue reading “Spring coming, Venus going”
Moon-Venus-Encke-Mars-Uranus congress
A gathering in the evening sky. Continue reading “Moon-Venus-Encke-Mars-Uranus congress”