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April meeting canceled

coronavirus covid-19 credit:CDCThe Cleveland Metroparks System’s Nature Centers are closed in an effort to control the spread of the novel coronavirus and COVID-19 disease. The monthly meetings of the Cuyahoga Astronomical Association take place at the Rocky River Nature Center which is affected by the park facility closure, therefore canceling the club’s April meeting.

Our meetings have become very popular, filling the nature center’s main meeting room with closely-spaced audience members — a potentially risky situation for contagious disease spread.

The CAA is willingly cooperating in efforts to prevent the spread of the novel coronavirus in the period of this spring’s Public Health Emergency. COVID-19 is a serious disease and it is only prudent, if disappointing, for some events to be called off. For more information on this public health issue, visit the Ohio Department of Health’s website.

In the mean time, stay healthy and work to prevent the spread of COVID-19 to others; the sooner it stops, the sooner we can get back to normal.

March 9 Membership Meeting and a visit to Mauna Kea (by a member)

Panorama of the Mauna Kea Observatories by Frank Ravizza.
Panorama of the Mauna Kea Observatories. Photo by Frank Ravizza. Used under Creative Commons License. https://en.wikipedia.org/wiki/Creative_Commons

The monthly general membership meeting of the Cuyahoga Astronomical Association will take place March 9, 2020 from 7:30 to 9:00 p.m. CAA Member and Vice President Tim Campbell will present his talk, “Mauna Kea: Telescopes above the Clouds!” — his visit to Hawaii’s Mauna Kea mountaintop observatories (MKO). Several major telescopes are located there at 14,000 feet above sea level. Mauna Kea is one of the most important sites in Earth-based astronomy and Campbell will take attendees on a detailed tour!

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.

Beautiful M42 in crystalline skies

Orion Nebula, M42, by Hayden Gill. February 2020

Hayden Gill, a member of our Cuyahoga Astronomical Association (CAA) braved a very cold but crystal-clear February night collecting image data to create this picture; it was also his very successful first effort at image stacking.

Gill wrote: “I shot it with a Nikon D7200 on a SkyWatcher EvoStar 80ED {telescope}, CGEM II mount. For guiding I have a 60mm ZWO scope and a ZWO 174 mono” guide camera. He used his Nikon for the data capture and Deep Sky Stacker to build the image. Each exposure was two minutes at ISO 800. He used 34 light images, 20 darks, 20 flats, 25 bias frames. Post processing was in Photoshop.

“This was my first attempt at astrophotography stacking. First time stacking and first time really putting all my gear to use how I have been intending to. Can’t wait to get back out!”

We will be eager to see Gill’s continued progress and images!

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.

First meeting of the new decade: January 13, 2020

Photo: After sunset scopes pointed skyward and offered views of planets Jupiter, Mars, and Saturn. Photo by James Guilford.
After sunset scopes pointed skyward and offered views of planets Jupiter, Mars, and Saturn.

The first Membership Meeting of the Cuyahoga Astronomical Association (CAA) for 2020 will take place Monday, January 13. The meeting will feature a presentation by member Trevor Braun entitled, “Equipment for Amateur Astronomy 101.” Are you looking to buy a new, or perhaps upgrade/enhance your existing, telescope? Learn about the critical factors needed to make a decision, as well as some of the equipment and accessories you may want to consider as you begin to get ready for the 2020 observing season.

The CAA’s monthly meetings are held on the second Monday of every month except December at 7:30 p.m. in the Rocky River Nature Center; 24000 Valley Parkway; North Olmsted, Ohio, in the Cleveland Metroparks. 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

November 11 Membership Meeting: “Catching the Sun…”

In its prime, the McMath-Hulbert Observatory shone in the sun, circa 1941. Credit: University of Michigan and McMath-Hulbert Observatory

The final Membership Meeting of the Cuyahoga Astronomical Association (CAA) for 2019 will take place Monday, November 11. The meeting will feature a presentation by member Steve Gallant entitled, “Catching the Sun: Robert McMath and the McMath-Hulbert Solar Observatory.”

Located north of Pontiac, Michigan and opened in 1929, after the initial attempts to study the moon, the main preoccupation of the observatory was the sun. McMath-Hulbert was once the second largest solar observatory in the world. Spears will fill us in on the observatory’s history and the current efforts to preserve and promote its continued use!

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