October 22, 2017

Astro-Event: A Tax Day Return of Saturn.

Saturn in January 2004. (Photo by Author).

Not looking forward to April 15th and the U.S. deadline to file taxes? It is in trying times like these that one can look to the skies for solace and the return of our solar system’s most resplendent planet to evening skies. Yes, we’re talking about Saturn as it reaches opposition later this weekend on Sunday April 15th at 18:00 Universal Time, or 14:00 Eastern Standard Time. [Read more...]

AstroEvent(s): A Week of Moons, Tri-Conjunctions, & Lunar Features!

Venus, Vesta, & Pluto in a 5 degree field of view. (Created by Author in Starry Night).

This week offers a grab bag of unique events, far from the humdrum wide conjunctions and difficult to see pairings. The action starts on February 8th with a rare chance to see Saturn’s moons in 1 -8 order. This occurs in a narrow window from 19:01-19:38 UT, and thus favors the Asian Far East. The planet currently rises around 11PM local, and a majority of the moons should still be in order from your corresponding latitude. [Read more...]

Astro-Challenge: See Saturn’s Moons in 1 to 7 Order.

Saturn's moons on July 31st. (Created by the Author in Starry Night).

Saturn's moons on July 31st. (Created by the Author in Starry Night).

 

    This week’s challenge may also give you a unique photographic opportunity. On the evening of July 31st (my birthday!) Saturn’s moons will be in 1 to 7 order. This will occur from 6:45 to 11:15 Universal Time, and favor viewers in Australia and the Far East. Later in the evening over North America, only speedy Mimas and Enceladus will be out of order… now is the time to brush up on and perhaps nab some of those hard to spot moons; in descending magnitude, difficulty, and order number (#)  they are: [Read more...]

31.08.09: An Edge on Saturn.

A rather odd event is transpiring in the Saturnian system, one that only happens a couple of times in our lifetime; its rings are vanishing. Not really, of course; we are merely passing through the super-fine ring plane as viewed from the Earth. The exact date of the “crossing” as viewed from Earth is Friday, September 4th, when the 20 meter thick rings will be exactly edge on and vanish from all but the largest telescopes. Just a few weeks ago, Saturn passed equinox, when the rings were edge on to the Sun and hence, not illuminated across their 100,000+ km expanse. This happens every 14 to 15 years during the planet’s 29.7 year orbit.

[Read more...]