February 10 Membership Meeting: “Lucy in the Sky with Asteroids”

An artist’s concept of the Lucy Mission. Credit: SwRI

On Monday, February 10, at 7:30 p.m. the Cuyahoga Astronomical Association (CAA) will conduct its monthly club meeting. The meeting will feature a talk by CAA member Kai Getrost, a member of the special NASA teams that performed occultation studies in support of NASA’s New Horizon’s space probe to “Ultima Thule.” He is currently working in support of NASA’s Lucy Mission to explore Jupiter’s Trojan Asteroids. The Lucy spacecraft will launch in October 2021 and, with boosts from Earth’s gravity, will complete a 12-year journey to seven different asteroids.

As part of the NASA science teams in support of the New Horizons and Lucy Missions, Getrost has traveled to South America and to Australia to help gather occultation data used to help guide the spacecraft.

The CAA’s monthly meetings are held on the second Monday of every month except December at 7:30 p.m. in the Cleveland Metroparks’ Rocky River Nature Center; 24000 Valley Parkway; North Olmsted, Ohio. Meeting programs are open to the public. Following the presentation and a brief social break, the club will conduct its membership business meeting.

Europa: Improved image from Galileo mission

Galileo’s Europa Remastered. Image Credit: NASA, JPL-Caltech, SETI Institute, Cynthia Phillips, Marty Valenti

“Looping through the Jovian system in the late 1990s, the Galileo spacecraft recorded stunning views of Europa and uncovered evidence that the moon’s icy surface likely hides a deep, global ocean. Galileo‘s Europa image data has been remastered here, using improved new calibrations to produce a color image approximating what the human eye might see. Europa’s long curving fractures hint at the subsurface liquid water. The tidal flexing the large moon experiences in its elliptical orbit around Jupiter supplies the energy to keep the ocean liquid. But more tantalizing is the possibility that even in the absence of sunlight that process could also supply the energy to support life, making Europa one of the best places to look for life beyond Earth. What kind of life could thrive in a deep, dark, subsurface ocean?” — Via APOD: Astronomy Picture Of the Day

Final Public Stargaze: October 5

Graphic: International Observe the Moon Night - October 5, 2019
Save the Night: International Observe the Moon Night, October 5, 2019

The year’s final public stargazing session hosted by the Cuyahoga Astronomical Association (CAA) will take place Saturday, October 5, from 8:00 to 10 p.m. at our Letha House Park West observatory site.

Given good sky conditions visitors will be able to view Jupiter, Saturn, star clusters, and Earth’s Moon. In fact, the date coincides with International Observe the Moon Night: a worldwide appreciation of our world’s nearest neighbor in space.

The event is free, open to the public, and is conducted as an “open house” — visitors may arrive and depart at any time during the event’s hours. The CAA’s observatory will be open and association members also will be on hand to share views through their personal telescopes.

An interesting activity any time of year is to make note of the daily changes we see in the phases of Moon. Open the PDF to print a handy guide and journal for lunar observation: Moon Observation Journal.

To find our observatory, and what to expect with a “star party,” visit the following: https://cuyastro.org/caa-observatory/

Seeing Stars Saturday!

Simulated View of Saturn and Moons as they will appear Saturday, September 7, at 9:30 PM EDT. Image via Gas Giants.
Seeing Stars Saturday! Coming this weekend: from 9 to 11 PM at Medina County Park District’s Letha House Park West on Saturday, September 7: Visit our observatory and peer through telescopes at our amazing cosmos. Planets Saturn and Jupiter will be spectacular, the Moon will be bright! And let’s not forget amazing star clusters; they would be sad if we did not look at them. {Such showoffs.}
Public observing nights are conducted in the open night air so dress appropriately for fall-like temperatures. There may also be mosquitoes so insect repellent may be a good idea.