September 20th, 2014
Waning Crescent Moon
moon
Seth Jarvis

Planets Near and Far

On Sunday, October 6th you’ll want to take a look outside at about 7:30 PM and look to the west-southwest.

Seth Jarvis

When Planetariums Save Lives

Exactly 50 years ago today, the education an astronaut received in a planetarium saved his life.

Seth Jarvis

Inferiority Complex

There is a lot happening in the sky in 2012! There’s the annular eclipse of the Sun on May 20th. There’s the not-again-visible -in-America-until-the-year-2125 Transit of Venus on June 5th. I’ll post entries in the Clark Planetarium blog about those…

Robert Bigelow

A November observing challenge

During the first half of November the planets Mercury and Venus will appear close to each other in the evening sky. The challenge is seeing them. The difficulty arises from the geometric relationship between Earth’s axis tilt and its orbit at this time of year. We will experience a 25 hour day on Sunday, November 6 as Daylight Saving Time ends. The Leonid meteor shower peaks on the evening of November 17, but light from a last quarter moon will interfere with the view for those observing after midnight.

Robert Bigelow

Observing Mercury, far and near

A milestone in the exploration of the planet Mercury will occur during the best evening opportunity to observe this planet during 2011. On March 17, the MESSENGER spacecraft will go where no spacecraft has gone before, into orbit around Mercury.…

Robert Bigelow

Greatest elongation times two

Now is the time to see Venus and Mercury! Venus is at greatest elongation on Saturday, January 8 and Mercury is at greatest elongation on Sunday, January 9.

Robert Bigelow

Mercury Rising

Have you ever seen the smallest planet? No, I don’t mean Pluto. It’s now a dwarf planet. I mean the planet Mercury. If you haven’t, now is your chance. Of the five planets that can be seen with the unaided…