Special Events


Delta College Planetarium astronomers will say “Hi” to NASA's Juno spacecraft on Wednesday, October 9, at 2:00pm.  The public is invited to attend the event.

NASA's Juno spacecraft will fly past Earth on October 9 to receive a gravity assist from our planet, putting it on course for Jupiter. 

The Juno mission team has invited amateur radio operators around the world to say "HI" to Juno in a coordinated Morse Code message. Juno's radio & plasma wave experiment, called Waves, should be able to detect the message. 

Delta College Planetarium astronomers will be transmitting their signal on a frequency of 28.270 MHz.

The Juno spacecraft will be within a distance of 50,000 kilometers from 2:00pm to 4:40pm EDT, and the Juno science instrument team has determined that Juno has the best chance of detecting the "HI" signal at this range. 

If the activity is successful, the Juno Waves instrument data containing the message will be shared by the Juno team and the Delta College Planetarium after the flyby.

Juno was launched in August, 2011 and will arrive at Jupiter in July, 2016.  Juno's principal goal is to understand the origin and evolution of Jupiter


Nov. 7 - Changing With the Seasons

A free program, "Changing with the Seasons," featuring weather experts Eric Jylha, Tim Klingler, and Mark Torregrossa, will be offered at the Delta College Planetarium in downtown Bay City at 7:30pm on Friday, November 7.  

What makes our seasons change?  What will our winter be like? How can we predict the weather at home?  These and many other weather topics will be addressed and presented in the Delta College Planetarium theater by area weather professionals. 
Eric Jylha is a media professional, public speaker, and Michigan historian. Tim Klingler is a Delta College professor teaching computer science, math, and meteorology. Mark Torregrossa is Chief Meteorologist for M-Live and Farmerweather.com.  
For additional information, call the Delta College Planetarium at (989) 667-2260.  The Planetarium is located at 100 Center Ave., Bay City. Plan to arrive early - seating is limited.  No reservations will be taken.

A free program, "Changing with the Seasons," featuring weather experts Eric Jylha, Tim Klingler, and Mark Torregrossa, will be offered at the Delta College Planetarium in downtown Bay City at 7:30pm on Friday, November 7.  
What makes our seasons change?  What will our winter be like? How can we predict the weather at home?  These and many other weather topics will be addressed and presented in the Delta College Planetarium theater by area weather professionals. 
Eric Jylha is a media professional, public speaker, and Michigan historian. Tim Klingler is a Delta College professor teaching computer science, math, and meteorology. Mark Torregrossa is Chief Meteorologist for M-Live and Farmerweather.com.  
For additional information, call the Delta College Planetarium at (989) 667-2260.  The Planetarium is located at 100 Center Ave., Bay City. Plan to arrive early - seating is limited.  No reservations will be taken.

A free program, "Changing with the Seasons," featuring weather experts Eric Jylha, Tim Klingler, and Mark Torregrossa, will be offered at the Delta College Planetarium in downtown Bay City at 7:30pm on Friday, November 7.

What makes our seasons change? What will our winter be like? How can we predict the weather at home? These and many other weather topics will be addressed and presented in the Delta College Planetarium theater by area weather professionals.

Eric Jylha is a media professional, public speaker, and Michigan historian. Tim Klingler is a Delta College professor teaching computer science, math, and meteorology. Mark Torregrossa is Chief Meteorologist for M-Live and Farmerweather.com

For additional information, call the Delta College Planetarium at (989) 667-2260. The Planetarium is located at 100 Center Ave., Bay City.  Plan to arrive early - seating is limited.  No reservations will be taken.


Nov 28 - SANTA ARRIVES!



Santa will arrive at the Planetarium to meet with children from 7pm - 9pm so they can share their Christmas Wish List in the Planetarium's Space Explorer's Hall. The Planetarium theater will have continuous previews showing during that same time period.  This is a FREE event.  Happy Holidays!


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