Thursday, December 4, 2014

Early December Astrominute

The Hatter Planetarium/WZBT astrominute for early December is online and on the air:

http://public.gettysburg.edu/~iclarke/hatter/podcasts/astrominute120114.mp3

Friday, November 28, 2014

December Sky this Month Shows Coming Up

Venus (L) and waxing crescent moon (R). Photo by Ian Clarke.
Sunday, November 30, 4:00 PM
Tuesday, December 2, 7:00 PM

Yes, that's right - we scheduled a show on Thanksgiving weekend. Oops! But we hope a few people can make a family event of it and enjoy our preview of the winter skies. If not then, come Tuesday night for the encore. The show will include recent astronomy news, for example what's next for the Rosetta probe at Comet 69P. We'll go over the local almanac and the reasons for the seasons. Then we'll use the planetarium to point out the sky sights you can enjoy over the next several weeks. The Hatter Planetarium is located in Masters Hall on the Gettysburg College campus. All shows are free and open to the public and last about 50 minutes. Note: there is no monthly skyshow for January as it would fall during the college's winter break.

Friday, November 14, 2014

Late November Astrominute

The late November Hatter Planetarium / WZBT astrominute is on the air and on line. Text below the link:

http://public.gettysburg.edu/~iclarke/hatter/podcasts/astrominute111414.mp3


Here is your Gettysburg Astrominute for late November, 2014. The evening skies will be moonless the week of the 16th but look for a growing crescent moon in the west after sunset the following week. On Thanksgiving night, a 23% crescent will be shining just above Mars in the southwest. Official winter is still a month away, but with the sun now setting in before 5:00 PM, it feels like it’s here now. The true harbinger of the season - Orion, the great hunter - is now rising due east by 9: PM. Look for it earlier and earlier as the weeks go by. Just as Orion is rising, look for the Pleiades - or seven sisters - half way up in the east. At midinight they will be almost directly overhead. (This was the time of year the ancient Celts celebrated Samhain, one of the predecessors of Halloween.) And at midnight, with the Pleiades overhead, turn back to the east to see Jupiter rising. It is not at its brightest now, but it’s still brighter than any star in the sky. The astrominute is a production of Gettysburg College’s Hatter Planetarium and WZBT.

Friday, October 31, 2014

Early November Astrominute

The Hatter Planetarium / WZBT astrominute for early November is on the air and online. Welcome, new reader Julia Giannini, '18. And listen to WZBT online too!

http://public.gettysburg.edu/~iclarke/hatter/podcasts/astrominute110114.mp3

Thursday, October 30, 2014

November Sky-shows Coming Up

Eclipse sequence from 10/8/14 by Prof. Emeritus Larry Marschall

THE SKY THIS MONTH
Sunday, 11/2, 4:00 PM
Tuesday, 11/4, 7:00 PM

We'll have a recap of the eclipses from October, a look ahead to events such as the Leonid meteor shower, a tour of the November skies, and an Astronomy Class Moment.

The Hatter Planetarium is located in Room 115, Masters Hall. All shows are free and open to the public, and the program will last about 50 minutes.

Tuesday, October 28, 2014

Observing Report, AST 101-L1, 10/27/14

Waxing crescent moon seen from GCO.
The evening began before the scheduled lab start time of 7:15 PM with an attempt to see a rocket launch from NASA's Wallops Island facility. Unfortunately, the launch was scrubbed at the last minute due to a boat in the restricted hazard area. For context, here is a view of a Wallops launch from 2013. We were, however, able to see a flyover of the International Space Station almost overhead a few minutes later. It looks like a bright, slowly moving star. Want to see the station yourself? It's not difficult. Visit www.heavens-above.com or spotthestation.nasa.gov.

Then we began the lab proper. After a review of celestial sphere concepts, and an introduction to the concept of light pollution, we took a tour of the night sky.

Two compound Meade telescopes were on the observing platform. We reviewed their parts and some concepts form the "Telescopes and Lenses" lab. The waxing cresent ooon in the SW made a great first telescope object. Later, high clouds were moving through, but we were able to see M57, the Ring Nebula, in the constellation Lyra. After everyone had seen it, we used the SBIG 402 CCD camera to take a few images, as you can see below. All in all, a pretty successful night out.

12 second exposure with no filter.

Combination of 3 exposures through red, blue, and green filters.
Real glass filters, not the Instagram kind! Unfortuantely,
there was some equipment movement in both of these shots,
thus the 'double' appearance of stars.

Crescent moon with earthshine clearly visible.