Join fellow astronomy enthusiasts for star parties or solar viewing! All events are weather permitting.
| Event | Place | Date | Time | Admission(s) |
|---|---|---|---|---|
| Telescope Tuesday | Centennial Observatory | Tuesday, February 24, 2026 | 7:00-9:00 p.m. | $1.50, ages 6 & under free, or free with planetarium admission |
| Total Lunar Eclipse | Centennial Observatory | Tuesday, March 3, 2026 | 2:30-6:45 a.m. | Free |
| Monthly Free Star Party | Centennial Observatory | Saturday, March 14, 2026 | 8:30-10:30 p.m. | Free |
| Earth Hour Telescope Viewing | Centennial Observatory | Saturday, March 28, 2026 | 8:30-9:30 p.m. | Free |
| Monthly Free Star Party | Centennial Observatory | Saturday, April 11, 2026 | 8:45-10:45 p.m. | Free |
| International Astronomy Day Solar Viewing | Centennial Observatory | Saturday, April 25, 2026 | 11:00 a.m.-4:00 p.m. | Free |
| International Astronomy Day Star Party | Centennial Observatory | Saturday, April 25, 2026 | 9:00-11:00 p.m. | Free |
| Monthly Free Star Party | Centennial Observatory | Saturday, May 9, 2026 | 9:30-11:30 p.m. | Free |
| Summer Solar Session #1 | Centennial Observatory | Wednesday, May 27, 2026 | 1:30-3:30 p.m. | Free |
| Summer Solar Session #2 | Centennial Observatory | Wednesday, June 3, 2026 | 1:30-3:30 p.m. | Free |
| Best evening apparition of Mercury in 2026 & Venus-Jupiter conjunction | Centennial Observatory | Tuesday, June 9, 2026 | 9:15-9:30 p.m. | Free |
| Summer Solar Session #3 | Centennial Observatory | Wednesday, June 10, 2026 | 1:30-3:30 p.m. | Free |
| Monthly Free Star Party | Centennial Observatory | Saturday, June 13, 2026 | 9:45-11:45 p.m. | Free |
| Summer Solar Session #4 & close Moon-Venus conjunction | Centennial Observatory | Wednesday, June 17, 2026 | 1:30-3:30 p.m. | Free |
| Summer Solar Session #5 | Centennial Observatory | Wednesday, June 24, 2026 | 1:30-3:30 p.m. | Free |
| International Asteroid Day Festival | Centennial Observatory | Saturday, June 27 | 1:00-5:00 p.m. | Free |
| Summer Solar Session #6 | Centennial Observatory | Wednesday, July 1, 2026 | 1:30-3:30 p.m. | Free |
| Close Conjunction of Mars and Uranus | Centennial Observatory | Saturday, July 4, 2026 | 5:00-5:30 a.m. | Free |
| Summer Solar Session #7 | Centennial Observatory | Wednesday, July 8, 2026 | 1:30-3:30 p.m. | Free |
| Monthly Free Star Party | Centennial Observatory | Saturday, July 11, 2026 | 9:45-11:45 p.m. | Free |
| Summer Solar Session #8 | Centennial Observatory | Wednesday, July 15, 2026 | 1:30-3:30 p.m. | Free |
| Annual Castle Rocks Star Party solar viewing | Castle Rocks Visitor Center, Almo, Idaho | Friday, July 17 & Saturday, July 18, 2026 | 12:00-5:00 p.m. | Free |
| Annual Castle Rocks Star Party telescope viewing | The Lodge, Castle Rocks State Park | Friday, July 17 & Saturday, July 18, 2026 | Starting at 9:30 p.m. | Free (park use fees apply) |
| Summer Solar Session #9 | Centennial Observatory | Wednesday, July 22, 2026 | 1:30-3:30 p.m. | Free |
| Peak Pluto in 2026 | Centennial Observatory | Friday, July 24, 2026 | 1:45-2:15 a.m. | Free |
| Summer Solar Session #10 | Centennial Observatory | Wednesday, July 29, 2026 | 1:30-3:30 p.m. | Free |
| Summer Solar Session #11 | Centennial Observatory | Wednesday, August 5, 2026 | 1:30-3:30 p.m. | Free |
| Monthly Free Star Party | Centennial Observatory | Saturday, August 8, 2026 | 9:45-11:45 p.m. | Free |
| Summer Solar Session #12 | Centennial Observatory | Wednesday, August 12, 2026 | 1:30-3:30 p.m. | Free |
| Summer Solar Session #13 | Centennial Observatory | Wednesday, August 19, 2026 | 1:30-3:30 p.m. | Free |
| Summer Solar Session #14 | Centennial Observatory | Wednesday, August 26, 2026 | 1:30-3:30 p.m. | Free |
| Deep partial lunar eclipse | Centennial Observatory | Tuesday, August 28, 2026 | 8:00 p.m.-12:00 a.m. | Free |
| Monthly Free Star Party | Centennial Observatory | Saturday, September 12, 2026 | 8:45-10:45 p.m. | Free |
| International Observe the Moon Night | Centennial Observatory | Saturday, September 19, 2026 | 8:30-9:30 p.m. | Free |
| Closest approach of Saturn in 2026 | Centennial Observatory | Sunday, October 4, 2026 | 1:15-1:45 a.m. | Free |
| Monthly Free Star Party | Centennial Observatory | Saturday, October 10, 2026 | 8:00-10:00 p.m. | Free |
| Telescope Tuesday | Centennial Observatory | Tuesday, November 10, 2026 | 6:15-9:00 p.m. | $1.50, ages 6 & under free, or free with planetarium admission |
| Monthly Free Star Party | Centennial Observatory | Saturday, November 14, 2026 | 6:15-9:00 p.m. | Free |
| Best morning apparition of Mercury in 2026 | Centennial Observatory | Thursday, November 19, 2026 | 7:15-7:30 a.m. | Free |
| Telescope Tuesday | Centennial Observatory | Tuesday, November 24, 2026 | 6:15-9:00 p.m. | $1.50, ages 6 & under free, or free with planetarium admission |
| Telescope Tuesday | Centennial Observatory | Tuesday, December 8, 2026 | 6:00-9:00 p.m. | $1.50, ages 6 & under free, or free with planetarium admission |
| Monthly Free Star Party | Centennial Observatory | Saturday, December 12, 2026 | 6:00-9:00 p.m. | Free |
| Telescope Tuesday | Centennial Observatory | Tuesday, December 22, 2026 | 6:00-9:00 p.m. | $1.50, ages 6 & under free, or free with planetarium admission |