| Date | Event | Starts | Ends | Comment |
| 03/17/2012 | Onan Public Star Party | 07:00 PM | 10:00 PM | All Weather Event (3rd qtr moon) |
| 03/23/2012 | Public Star Party: Messier Marathon | Dusk | Dawn | Cancelled if Cloudy (new moon) |
| 03/24/2012 | Public Star Party: Messier Marathon (alt) | Dusk | Dawn | Cancelled if Cloudy (new moon) |
| 03/31/2012 | Onan Public Star Party | 07:00 PM | 10:00 PM | All Weather Event (1st qtr moon) |
| 04/14/2012 | Onan Public Star Party | 07:00 PM | 10:00 PM | All Weather Event (3rd qtr moon) |
| 04/28/2012 | Onan Public Star Party - Astronomy Day | 02:00 PM | 10:00 PM | All Weather Event (1st qtr moon) |
| 05/12/2012 | Onan Public Star Party | 07:00 PM | 10:00 PM | All Weather Event (3rd qtr moon) |
| 05/20/2012 | Public Star Party: Partial Solar Eclipse | 07:00 PM | TBD | Cancelled if Cloudy (new moon) |
| 05/26/2012 | Onan Public Star Party | 07:00 PM | 10:00 PM | All Weather Event (1st qtr moon) |
| 06/05/2012 | Public Star Party: Transit of Venus | 04:00 PM | TBD | All weather event |
| 06/09/2012 | Onan Public Star Party | 07:00 PM | 10:00 PM | All Weather Event (3rd qtr moon) |
| 06/23/2012 | Onan Public Star Party | 07:00 PM | 10:00 PM | All Weather Event (1st qtr moon) |
| 07/14/2012 | Onan Public Star Party | 07:00 PM | 10:00 PM | All Weather Event (3rd qtr moon) |
| 07/20/2012 | 5th Annual Camping with the Stars | 07:00 PM | 10:00 PM | All Weather Event (1st qtr moon) |
| 07/21/2012 | 5th Annual Camping with the Stars | 02:00 PM | 10:00 PM | All Weather Event (1st qtr moon) |
| 07/22/2012 | 5th Annual Camping with the Stars | 09:00 AM | 02:00 PM | All Weather Event (1st qtr moon) |
| 07/28/2012 | Onan Public Star Party | 07:00 PM | 10:00 PM | All Weather Event (1st qtr moon) |
| 08/11/2012 | Onan Public Star Party | 07:00 PM | 10:00 PM | All Weather Event (3rd qtr moon) |
| 08/25/2012 | Onan Public Star Party | 07:00 PM | 10:00 PM | All Weather Event (1st qtr moon) |
| 09/08/2012 | Onan Public Star Party | 07:00 PM | 10:00 PM | All Weather Event (3rd qtr moon) |
| 09/22/2012 | Onan Public Star Party | 07:00 PM | 10:00 PM | All Weather Event (1st qtr moon) |
| 10/06/2012 | Onan Public Star Party | 07:00 PM | 10:00 PM | All Weather Event (3rd qtr moon) |
| 10/20/2012 | Onan Public Star Party - Fall Astronomy Day | 02:00 PM | 10:00 PM | All Weather Event (1st qtr moon) |
| 11/03/2012 | Onan Public Star Party | 07:00 PM | 10:00 PM | All Weather Event (3rd qtr moon) |
| 11/10/2012 | Onan Public Star Party | 07:00 PM | 10:00 PM | All Weather Event (3rd qtr moon) |
Many Onan Observatory events are "all-weather" events and take place regardless of weather conditions. However, last minute changes are still possible. Check the Society's phone message at 952-467-2426 for event updates and last minute schedule changes and cancellations.