| Date | Event | Starts | Ends | Comment |
| 03/06/2010 | Onan Observatory Public Star Party | 07:00 PM | 10:00 PM | All weather event. (Moon 3rd qtr) |
| 03/20/2010 | Onan Observatory Public Star Party | 07:00 PM | 10:00 PM | All weather event. (Moon 1st qtr) |
| 04/03/2010 | Onan Observatory Public Star Party | 07:00 PM | 10:00 PM | All weather event. (Moon 3rd qtr) |
| 04/17/2010 | Onan Observatory Public Star Party | 07:00 PM | 10:00 PM | All weather event. (Moon 1st qtr) |
| 04/24/2010 | Astronomy Day - Public Star Party | 12:00 PM | 10:00 PM | All weather event. (Moon 1st qtr) |
| 05/08/2010 | Onan Observatory Public Star Party | 07:00 PM | 10:00 PM | All weather event. (Moon 3rd qtr) |
| 05/22/2010 | Onan Observatory Public Star Party | 07:00 PM | 10:00 PM | All weather event. (Moon 1st qtr) |
| 06/05/2010 | Onan Observatory Public Star Party | 07:00 PM | 10:00 PM | All weather event. (Moon 3rd qtr) |
| 06/19/2010 | Onan Observatory Public Star Party | 07:00 PM | 10:00 PM | All weather event. (Moon 1st qtr) |
| 07/03/2010 | Onan Observatory Public Star Party | 07:00 PM | 10:00 PM | All weather event. (Moon 3rd qtr) |
| 07/16/2010 | 3rd Annual Camping with the Stars | 07:00 PM | 10:00 PM | All weather event. (Moon 1st qtr) |
| 07/17/2010 | 3rd Annual Camping with the Stars | 02:00 PM | 10:00 PM | All weather event. (Moon 1st qtr) |
| 07/18/2010 | 3rd Annual Camping with the Stars | 10:00 AM | 02:00 PM | All weather event. (Moon 1st qtr) |
| 07/31/2010 | Onan Observatory Public Star Party | 07:00 PM | 10:00 PM | All weather event. (Moon 3rd qtr) |
| 08/14/2010 | Onan Observatory Public Star Party | 07:00 PM | 10:00 PM | All weather event. (Moon 1st qtr) |
| 08/28/2010 | Onan Observatory Public Star Party | 07:00 PM | 10:00 PM | All weather event. (Moon 3rd qtr) |
| 09/04/2010 | Onan Observatory Public Star Party | 07:00 PM | 10:00 PM | All weather event. (Moon 3rd qtr) |
| 09/18/2010 | Onan Observatory Public Star Party | 07:00 PM | 10:00 PM | All weather event. (Moon 1st qtr) |
| 10/02/2010 | Onan Observatory Public Star Party | 07:00 PM | 10:00 PM | All weather event. (Moon 3rd qtr) |
| 10/16/2010 | Fall A-Day Public Star Party | 07:00 PM | 10:00 PM | All weather event. (Moon 1st qtr) |
| 10/30/2010 | Onan Observatory Public Star Party | 07:00 PM | 10:00 PM | All weather event. (Moon 3rd qtr) |
| 11/13/2010 | Onan Observatory Public Star Party | 07:00 PM | 10:00 PM | All weather event. (Moon 1st qtr) |
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.