Next Planetarium Show / Stargazing Night:
LIGO: How to Catch a Gravitational Wave
at Ritchie Observatory is Saturday December 8, 7:30 pm.
The Laser Interferometer Gravitational-Wave Observatory (LIGO) recently detected a disturbance in the space-time continuum caused by two neutron stars crashing together. The three scientists responsible for this achievement won the 2017 Nobel Prize in Physics. What is LIGO? What does it do? What did it find? And, Why is this important?
Frank Petrie and Jim Thrash will explain how LIGO provides a tantalizing glimpse into the strange world of Einsteins general relativity, confirms a 100-year-old prediction of gravitational waves, and opens the door to the new field of gravitational-wave astrophysics.
Afterwards, we will observe clouds and/or rain. On the off-chance the sky is clear, astronomers will be on hand with telescopes. Free to members, $2.00 donation suggested for nonmembers, $5.00 for families.
Information: (206) 842-9152
Web site: http://www.bpastro.org/
Join us as we try and solve a mystery using fun scientific techniques!
All ages welcome, great for PreK-Grade 4/5 with their caregivers Battle Point Observatory | BI STEM library is open during this time! Donations help cover the cost of supplies
All ages welcome, suggested $5 donation helps to cover costs.
The Latest Posts
We are making parts to upgrade the Ritchie
Preliminary CNC work for new pillow block bearing for declination axis.
A piece to hold the dec drive gearing.
The menu item "Steve's Pictures" is now populated.
|This Saturday (2/7/2015) Malcolm, Steve, Nels (l to r) & Marty were busy, knee deep in sawdust, working on the deck platform for the Richie. Once completed, the new deck will provide a single surface for observing at the telescope. A ladder will be needed but it will be much smaller and not tied to the dome.||The End Result.
The Ritchie is now a much more accessible telescope.