
American Prairie National Discovery Center
302 W Main Street, Lewistown
406-585-4600
Website

Carter County Museum
306 N. Main Street, Ekalaka
406-775-6886
Website

Fort Peck Interpretive Center
157 Yellowstone Road, Fort Peck
406-526-3493 | 406-526-3411
Website

Huntley Project Museum
770 Railroad Hwy, Huntley
406-348-2533
Website

First Peoples Buffalo Jump State Park
342 Ulm-Vaughn Road, Ulm
406-454-5840
Website
WHAT'S ON THE HORIZON:
Check back soon for a list of events / programs for summer 2025! In the meantime, use the astronomical calendar below to start planning your stargazing outings.
Tell us about your stargazing event or program.
2025 ASTRONOMICAL CALENDAR
May
- 3 Conjunction of the Moon and Mars
- 3 Close approach of the Moon and Mars
- 4 Moon at First Quarter
- 6 η-Aquariid meteor shower 2025
- 6 Equinox on Saturn
- 8 η-Lyrid meteor shower 2025
- 12 Full Moon
- 20 Moon at Last Quarter
- 22 Close approach of the Moon and Saturn
- 22 Conjunction of the Moon and Saturn
- 23 Close approach of the Moon and Venus
- 23 Conjunction of the Moon and Venus
- 31 Venus at greatest elongation west
June
- 1 Conjunction of the Moon and Mars
- 1 Close approach of the Moon and Mars
- 1 Venus at dichotomy
- 2 Moon at First Quarter
- 10 Daytime Arietid meteor shower 2025
- 11 Full Moon
- 18 Moon at Last Quarter
- 18 Close approach of the Moon, Saturn and Neptune
- 18 Conjunction of the Moon and Saturn
- 20 June solstice
- 22 Conjunction of the Moon and Venus
- 27 June Bootid meteor shower 2025
- 28 Mercury at dichotomy
- 29 Conjunction of the Moon and Mars
- 29 Close approach of the Moon and Mars
- 25 Mercury at highest altitude in evening sky
July
- 2 Moon at First Quarter
- 3 The Earth at aphelion
- 3 Mercury at greatest elongation east
- 10 Full Moon
- 12 Saturn enters retrograde motion
- 16 Close approach of the Moon, Saturn and Neptune
- 16 Conjunction of the Moon and Saturn
- 17 Moon at Last Quarter
- 20 Close approach of the Moon and M45
- 21 Conjunction of the Moon and Venus
- 28 Close approach of the Moon and Mars
- 28 Conjunction of the Moon and Mars
- 28 Piscis Austrinid meteor shower 2025
- 30 Southern δ-Aquariid meteor shower 2025
- 30 α-Capricornid meteor shower 2025
August
- 7 Venus at highest altitude in morning sky
- 1 Moon at First Quarter
- 9 Full Moon
- 12 Close approach of Venus and Jupiter
- 12 Conjunction of Venus and Jupiter
- 12 Close approach of the Moon, Saturn and Neptune
- 12 Conjunction of the Moon and Saturn
- 12 Perseid meteor shower 2025
- 15 Moon at Last Quarter
- 16 Close approach of the Moon and M45
- 18 κ-Cygnid meteor shower 2025
- 19 Mercury at greatest elongation west
- 21 Mercury at highest altitude in morning sky
- 19 Conjunction of the Moon and Jupiter
- 19 Close approach of the Moon and Jupiter
- 20 Conjunction of the Moon and Venus
- 21 Mercury at dichotomy
- 26 Close approach of the Moon and Mars
- 26 Conjunction of the Moon and Mars
- 31 Moon at First Quarter
September
- 1 Aurigid meteor shower 2025
- 7 Full Moon
- 7 Total lunar eclipse
- 8 Close approach of the Moon, Saturn and Neptune
- 8 Conjunction of the Moon and Saturn
- 9 September ε-Perseid meteor shower 2025
- 12 Close approach of the Moon and M45
- 14 Moon at Last Quarter
- 16 Conjunction of the Moon and Jupiter
- 16 Close approach of the Moon and Jupiter
- 20 Saturn at opposition
- 21 Partial solar eclipse
- 22 September equinox
- 27 Daytime Sextantid meteor shower 2025
- 29 Moon at First Quarter
October
- 5 October Camelopardalid meteor shower 2025
- 5 Close approach of the Moon and Saturn
- 5 Conjunction of the Moon and Saturn
- 6 Full Moon
- 8 Draconid meteor shower 2025
- 9 Close approach of the Moon and M45
- 10 Southern Taurid meteor shower 2025
- 11 δ-Aurigid meteor shower 2025
- 13 Moon at Last Quarter
- 13 Conjunction of the Moon and Jupiter
- 13 Close approach of the Moon and Jupiter
- 18 ε-Geminid meteor shower 2025
- 21 Orionid meteor shower 2025
- 24 Leonis Minorid meteor shower 2025
- 29 Moon at First Quarter
- 29 Mercury at greatest elongation east
November
- 1 Mercury at highest altitude in evening sky
- 2 Close approach of the Moon and Saturn
- 2 Conjunction of the Moon and Saturn
- 3 Mercury at dichotomy
- 5 Full Moon
- 6 Close approach of the Moon and M45
- 10 Conjunction of the Moon and Jupiter
- 10 Close approach of the Moon and Jupiter
- 11 Jupiter enters retrograde motion
- 11 Moon at Last Quarter
- 12 Northern Taurid meteor shower 2025
- 17 Leonid meteor shower 2025
- 17 The Pleiades cluster is well placed
- 21 α-Monocerotid meteor shower 2025
- 27 The Hyades cluster is well placed
- 27 Saturn ends retrograde motion
- 27 Moon at First Quarter
- 28 November Orionid meteor shower 2025
- 29 Close approach of the Moon and Saturn
- 29 Conjunction of the Moon and Saturn
December
- 3 Close approach of the Moon and M45
- 4 Mercury at dichotomy
- 4 Full Moon
- 4 Mercury at highest altitude in morning sky
- 6 December φ-Cassiopeid meteor shower 2025
- 7 Conjunction of the Moon and Jupiter
- 7 Close approach of the Moon and Jupiter
- 7 Mercury at greatest elongation west
- 9 Monocerotid meteor shower 2025
- 11 Moon at Last Quarter
- 12 σ-Hydrid meteor shower 2025
- 14 Geminid meteor shower 2025
- 16 Comae Berenicid meteor shower 2025
- 19 December Leonis Minorid meteor shower 2025
- 21 December solstice
- 22 Ursid meteor shower 2025
- 26 Close approach of the Moon and Saturn
- 26 Conjunction of the Moon and Saturn
- 27 Moon at First Quarter
- 31 Close approach of the Moon and M45