Home
Welcome to the Rochester Astronomy Club
Rochester, Minnesota
If you are new to our public observing events, click HERE for more information
FrontPage
Moon Eclipse at Dog Park North
August 28, 2026
Josef Chlachula
FrontPage, Members Blog
Comments Off on Moon Eclipse at Dog Park North
Two weeks after the total solar eclipse, a lunar eclipse occurred. The total eclipse was only visible in a narrow strip that ended in Spain and the Mediterranean Sea. In Rochester, the Moon only slightly licked the Sun, it was a partial solar eclipse. As the H-Alpha photo below documents, the Moon only covered a tiny part on the right. […]
FrontPage
StarBQ 2026: A glorious night for Astronomy
August 18, 2026
Josef Chlachula
FrontPage, Members Blog
Comments Off on StarBQ 2026: A glorious night for Astronomy
This year, the club once again hosted StarBQ (spelled Star-B-Q: a Star Party and Barbeque) for its members. The original plan was for Friday and Saturday, August 14-16, but the weather didn’t cooperate. The weather was looking better for Sunday, August 16, so Plan B was activated. The afternoon started with sun-gazing at DJMOF (Dean Johnson Memorial Observing Field), followed […]
FrontPage
Falcon 9 Upper Stage lunar impact
July 24, 2026
Josef Chlachula
FrontPage, Members Blog
Comments Off on Falcon 9 Upper Stage lunar impact
On August 5, 2026 at 1:35 a.m. CDT, the Moon will be approximately at the last quarter and more than 20 degrees above the eastern horizon in the North Central Region. At that time, the second stage of the Falcon 9 rocket will impact on its illuminated part on the left edge. In a telescope, impact of the 4000kg heavy […]
FrontPage
RAC at RochesterFest 2026
Solar Observing at RochesterFest The Rochester Astronomy Club marked another successful community outreach event on Saturday, June 27, celebrating its second annual appearance at RochesterFest. To combat the summer heat, club members Randy and Lynn thoughtfully provided a sturdy yellow canopy shelter, offering a much-needed reprieve from the blazing sun. Once settled in the shade, visitors were treated to an […]
FrontPage
Observe Titan shadow transits
This year 2025, we still have a unique opportunity to observe Titan’s shadow passing across Saturn’s disk as we learned at the last members’ meeting from Bob Fealey. Below is an adapted table taken from Sky and Telescope. For mid transits, there are links to Saturn in stellarium-web.org , opens in new tab. Upcoming Titan shadow transits (UT/CDT) Date DoW […]
FrontPage
Sun at RochesterFest
A public observation of the Sun at RochesterFest was planned for Tuesday 6/24 and for Saturday 6/28. Tuesday 6/24 we planned a public observation of the Sun at RochesterFest from 5 to 7 p.m. Actually, 2025 was the first year that RAC participated in RochesterFest. We were pleasantly surprised by the organizers, who provided transportation for our telescopes and other […]








