Browse upcoming sky events by category, from Moon phases and meteor showers to eclipses, planetary alignments, and deep-sky highlights.
Jun 20, 2026
A planetary conjunction occurs when two planets, or a planet and another bright celestial object, appear close together in the sky from Earth’s perspective. The objects are not actually close together in s...
View event detailsJun 28, 2026
A planetary conjunction occurs when two planets, or a planet and another bright celestial object, appear close together in the sky from Earth’s perspective. The objects are not actually close together in s...
View event detailsJul 1, 2026
A planetary orbital event marks a specific point or condition in a planet’s path around the Sun. Examples can include perihelion, aphelion, nodes, conjunction-related geometry, or other orbital milestones....
View event detailsJul 4, 2026
A planetary conjunction occurs when two planets, or a planet and another bright celestial object, appear close together in the sky from Earth’s perspective. The objects are not actually close together in s...
View event detailsJul 7, 2026
Planetary retrograde motion is an apparent reversal in a planet’s movement against the background stars. The planet does not physically stop and move backward in its orbit. Retrograde motion happens becaus...
View event detailsJul 9, 2026
A planetary conjunction occurs when two planets, or a planet and another bright celestial object, appear close together in the sky from Earth’s perspective. The objects are not actually close together in s...
View event detailsJul 13, 2026
A planetary solar conjunction occurs when a planet appears close to the Sun in Earth’s sky. The planet may pass behind the Sun, near the Sun, or between Earth and the Sun depending on the planet and event ...
View event detailsJul 26, 2026
Planetary retrograde motion is an apparent reversal in a planet’s movement against the background stars. The planet does not physically stop and move backward in its orbit. Retrograde motion happens becaus...
View event detailsJul 29, 2026
A planetary solar conjunction occurs when a planet appears close to the Sun in Earth’s sky. The planet may pass behind the Sun, near the Sun, or between Earth and the Sun depending on the planet and event ...
View event detailsJul 30, 2026
A planetary orbital event marks a specific point or condition in a planet’s path around the Sun. Examples can include perihelion, aphelion, nodes, conjunction-related geometry, or other orbital milestones....
View event detailsAug 2, 2026
Greatest elongation occurs when an inner planet appears farthest from the Sun in Earth’s sky. This event applies only to Mercury and Venus because their orbits lie inside Earth’s orbit around the Sun. Fr...
View event detailsAug 5, 2026
Planetary dichotomy occurs when a planet appears approximately half illuminated as seen from Earth. The word “dichotomy” means divided into two parts, and in astronomy it usually describes a planet showi...
View event detailsAug 6, 2026
Greatest elongation occurs when an inner planet appears farthest from the Sun in Earth’s sky. This event applies only to Mercury and Venus because their orbits lie inside Earth’s orbit around the Sun. Fr...
View event detailsAug 9, 2026
A planetary conjunction occurs when two planets, or a planet and another bright celestial object, appear close together in the sky from Earth’s perspective. The objects are not actually close together in s...
View event detailsAug 12, 2026
A planetary alignment occurs when multiple planets appear arranged along a similar line across the sky. Despite the name, the planets are not perfectly lined up in space. Instead, they appear grouped from ou...
View event detailsAug 12, 2026
Planetary dichotomy occurs when a planet appears approximately half illuminated as seen from Earth. The word “dichotomy” means divided into two parts, and in astronomy it usually describes a planet showi...
View event detailsAug 14, 2026
A planetary orbital event marks a specific point or condition in a planet’s path around the Sun. Examples can include perihelion, aphelion, nodes, conjunction-related geometry, or other orbital milestones....
View event detailsAug 15, 2026
A planetary conjunction occurs when two planets, or a planet and another bright celestial object, appear close together in the sky from Earth’s perspective. The objects are not actually close together in s...
View event detailsAug 15, 2026
Greatest elongation occurs when an inner planet appears farthest from the Sun in Earth’s sky. This event applies only to Mercury and Venus because their orbits lie inside Earth’s orbit around the Sun. Fr...
View event detailsAug 27, 2026
A planetary solar conjunction occurs when a planet appears close to the Sun in Earth’s sky. The planet may pass behind the Sun, near the Sun, or between Earth and the Sun depending on the planet and event ...
View event detailsSep 2, 2026
A planetary conjunction occurs when two planets, or a planet and another bright celestial object, appear close together in the sky from Earth’s perspective. The objects are not actually close together in s...
View event detailsSep 4, 2026
A planetary orbital event marks a specific point or condition in a planet’s path around the Sun. Examples can include perihelion, aphelion, nodes, conjunction-related geometry, or other orbital milestones....
View event detailsSep 10, 2026
Planetary retrograde motion is an apparent reversal in a planet’s movement against the background stars. The planet does not physically stop and move backward in its orbit. Retrograde motion happens becaus...
View event detailsSep 22, 2026
A planetary brightness event occurs when a planet reaches a notable brightness in Earth’s sky. This can happen because of distance, phase, illumination, and viewing geometry. For planets such as Venus, bri...
View event detailsSep 26, 2026
A planetary conjunction occurs when two planets, or a planet and another bright celestial object, appear close together in the sky from Earth’s perspective. The objects are not actually close together in s...
View event detailsSep 26, 2026
Opposition occurs when an outer Solar System object appears opposite the Sun in Earth’s sky. At opposition, Earth is positioned roughly between the Sun and the object. This geometry means the object rises ...
View event detailsSep 27, 2026
Greatest elongation occurs when an inner planet appears farthest from the Sun in Earth’s sky. This event applies only to Mercury and Venus because their orbits lie inside Earth’s orbit around the Sun. Fr...
View event detailsSep 27, 2026
A planetary orbital event marks a specific point or condition in a planet’s path around the Sun. Examples can include perihelion, aphelion, nodes, conjunction-related geometry, or other orbital milestones....
View event detailsOct 4, 2026
Opposition occurs when an outer Solar System object appears opposite the Sun in Earth’s sky. At opposition, Earth is positioned roughly between the Sun and the object. This geometry means the object rises ...
View event detailsOct 5, 2026
A planetary solar conjunction occurs when a planet appears close to the Sun in Earth’s sky. The planet may pass behind the Sun, near the Sun, or between Earth and the Sun depending on the planet and event ...
View event detailsOct 7, 2026
A planetary conjunction occurs when two planets, or a planet and another bright celestial object, appear close together in the sky from Earth’s perspective. The objects are not actually close together in s...
View event detailsOct 11, 2026
A planetary conjunction occurs when two planets, or a planet and another bright celestial object, appear close together in the sky from Earth’s perspective. The objects are not actually close together in s...
View event detailsOct 12, 2026
Greatest elongation occurs when an inner planet appears farthest from the Sun in Earth’s sky. This event applies only to Mercury and Venus because their orbits lie inside Earth’s orbit around the Sun. Fr...
View event detailsOct 17, 2026
Planetary dichotomy occurs when a planet appears approximately half illuminated as seen from Earth. The word “dichotomy” means divided into two parts, and in astronomy it usually describes a planet showi...
View event detailsOct 24, 2026
A planetary solar conjunction occurs when a planet appears close to the Sun in Earth’s sky. The planet may pass behind the Sun, near the Sun, or between Earth and the Sun depending on the planet and event ...
View event detailsOct 27, 2026
A planetary solar conjunction occurs when a planet appears close to the Sun in Earth’s sky. The planet may pass behind the Sun, near the Sun, or between Earth and the Sun depending on the planet and event ...
View event detailsNov 4, 2026
A planetary solar conjunction occurs when a planet appears close to the Sun in Earth’s sky. The planet may pass behind the Sun, near the Sun, or between Earth and the Sun depending on the planet and event ...
View event detailsNov 9, 2026
A planetary conjunction occurs when two planets, or a planet and another bright celestial object, appear close together in the sky from Earth’s perspective. The objects are not actually close together in s...
View event detailsNov 10, 2026
A planetary orbital event marks a specific point or condition in a planet’s path around the Sun. Examples can include perihelion, aphelion, nodes, conjunction-related geometry, or other orbital milestones....
View event detailsNov 14, 2026
A planetary alignment occurs when multiple planets appear arranged along a similar line across the sky. Despite the name, the planets are not perfectly lined up in space. Instead, they appear grouped from ou...
View event detailsNov 16, 2026
A planetary conjunction occurs when two planets, or a planet and another bright celestial object, appear close together in the sky from Earth’s perspective. The objects are not actually close together in s...
View event detailsNov 18, 2026
Planetary dichotomy occurs when a planet appears approximately half illuminated as seen from Earth. The word “dichotomy” means divided into two parts, and in astronomy it usually describes a planet showi...
View event detailsNov 19, 2026
Greatest elongation occurs when an inner planet appears farthest from the Sun in Earth’s sky. This event applies only to Mercury and Venus because their orbits lie inside Earth’s orbit around the Sun. Fr...
View event detailsNov 20, 2026
Greatest elongation occurs when an inner planet appears farthest from the Sun in Earth’s sky. This event applies only to Mercury and Venus because their orbits lie inside Earth’s orbit around the Sun. Fr...
View event detailsNov 21, 2026
Greatest elongation occurs when an inner planet appears farthest from the Sun in Earth’s sky. This event applies only to Mercury and Venus because their orbits lie inside Earth’s orbit around the Sun. Fr...
View event detailsNov 25, 2026
A planetary conjunction occurs when two planets, or a planet and another bright celestial object, appear close together in the sky from Earth’s perspective. The objects are not actually close together in s...
View event detailsNov 25, 2026
Opposition occurs when an outer Solar System object appears opposite the Sun in Earth’s sky. At opposition, Earth is positioned roughly between the Sun and the object. This geometry means the object rises ...
View event detailsNov 27, 2026
A planetary brightness event occurs when a planet reaches a notable brightness in Earth’s sky. This can happen because of distance, phase, illumination, and viewing geometry. For planets such as Venus, bri...
View event detailsDec 7, 2026
Greatest elongation occurs when an inner planet appears farthest from the Sun in Earth’s sky. This event applies only to Mercury and Venus because their orbits lie inside Earth’s orbit around the Sun. Fr...
View event detailsDec 10, 2026
Planetary retrograde motion is an apparent reversal in a planet’s movement against the background stars. The planet does not physically stop and move backward in its orbit. Retrograde motion happens becaus...
View event detailsDec 11, 2026
Planetary retrograde motion is an apparent reversal in a planet’s movement against the background stars. The planet does not physically stop and move backward in its orbit. Retrograde motion happens becaus...
View event detailsDec 12, 2026
A planetary conjunction occurs when two planets, or a planet and another bright celestial object, appear close together in the sky from Earth’s perspective. The objects are not actually close together in s...
View event detailsDec 12, 2026
Planetary retrograde motion is an apparent reversal in a planet’s movement against the background stars. The planet does not physically stop and move backward in its orbit. Retrograde motion happens becaus...
View event detailsDec 13, 2026
Planetary retrograde motion is an apparent reversal in a planet’s movement against the background stars. The planet does not physically stop and move backward in its orbit. Retrograde motion happens becaus...
View event detailsDec 24, 2026
A planetary orbital event marks a specific point or condition in a planet’s path around the Sun. Examples can include perihelion, aphelion, nodes, conjunction-related geometry, or other orbital milestones....
View event detailsDec 25, 2026
A planetary orbital event marks a specific point or condition in a planet’s path around the Sun. Examples can include perihelion, aphelion, nodes, conjunction-related geometry, or other orbital milestones....
View event detailsJan 1, 2027
A planetary solar conjunction occurs when a planet appears close to the Sun in Earth’s sky. The planet may pass behind the Sun, near the Sun, or between Earth and the Sun depending on the planet and event ...
View event detailsJan 3, 2027
Greatest elongation occurs when an inner planet appears farthest from the Sun in Earth’s sky. This event applies only to Mercury and Venus because their orbits lie inside Earth’s orbit around the Sun. Fr...
View event detailsJan 10, 2027
Planetary retrograde motion is an apparent reversal in a planet’s movement against the background stars. The planet does not physically stop and move backward in its orbit. Retrograde motion happens becaus...
View event detailsFeb 3, 2027
Greatest elongation occurs when an inner planet appears farthest from the Sun in Earth’s sky. This event applies only to Mercury and Venus because their orbits lie inside Earth’s orbit around the Sun. Fr...
View event detailsFeb 6, 2027
A planetary orbital event marks a specific point or condition in a planet’s path around the Sun. Examples can include perihelion, aphelion, nodes, conjunction-related geometry, or other orbital milestones....
View event detailsFeb 8, 2027
Planetary retrograde motion is an apparent reversal in a planet’s movement against the background stars. The planet does not physically stop and move backward in its orbit. Retrograde motion happens becaus...
View event detailsFeb 11, 2027
Opposition occurs when an outer Solar System object appears opposite the Sun in Earth’s sky. At opposition, Earth is positioned roughly between the Sun and the object. This geometry means the object rises ...
View event detailsFeb 18, 2027
A planetary solar conjunction occurs when a planet appears close to the Sun in Earth’s sky. The planet may pass behind the Sun, near the Sun, or between Earth and the Sun depending on the planet and event ...
View event detailsFeb 19, 2027
Opposition occurs when an outer Solar System object appears opposite the Sun in Earth’s sky. At opposition, Earth is positioned roughly between the Sun and the object. This geometry means the object rises ...
View event detailsMar 4, 2027
A planetary orbital event marks a specific point or condition in a planet’s path around the Sun. Examples can include perihelion, aphelion, nodes, conjunction-related geometry, or other orbital milestones....
View event detailsMar 22, 2027
A planetary orbital event marks a specific point or condition in a planet’s path around the Sun. Examples can include perihelion, aphelion, nodes, conjunction-related geometry, or other orbital milestones....
View event detailsMar 24, 2027
A planetary solar conjunction occurs when a planet appears close to the Sun in Earth’s sky. The planet may pass behind the Sun, near the Sun, or between Earth and the Sun depending on the planet and event ...
View event detailsApr 1, 2027
Planetary retrograde motion is an apparent reversal in a planet’s movement against the background stars. The planet does not physically stop and move backward in its orbit. Retrograde motion happens becaus...
View event detailsApr 7, 2027
A planetary solar conjunction occurs when a planet appears close to the Sun in Earth’s sky. The planet may pass behind the Sun, near the Sun, or between Earth and the Sun depending on the planet and event ...
View event detailsApr 11, 2027
A planetary conjunction occurs when two planets, or a planet and another bright celestial object, appear close together in the sky from Earth’s perspective. The objects are not actually close together in s...
View event detailsApr 13, 2027
Planetary retrograde motion is an apparent reversal in a planet’s movement against the background stars. The planet does not physically stop and move backward in its orbit. Retrograde motion happens becaus...
View event detailsApr 17, 2027
A planetary orbital event marks a specific point or condition in a planet’s path around the Sun. Examples can include perihelion, aphelion, nodes, conjunction-related geometry, or other orbital milestones....
View event detailsApr 19, 2027
A planetary conjunction occurs when two planets, or a planet and another bright celestial object, appear close together in the sky from Earth’s perspective. The objects are not actually close together in s...
View event detailsApr 24, 2027
A planetary conjunction occurs when two planets, or a planet and another bright celestial object, appear close together in the sky from Earth’s perspective. The objects are not actually close together in s...
View event detailsApr 28, 2027
A planetary solar conjunction occurs when a planet appears close to the Sun in Earth’s sky. The planet may pass behind the Sun, near the Sun, or between Earth and the Sun depending on the planet and event ...
View event detailsMay 5, 2027
A planetary orbital event marks a specific point or condition in a planet’s path around the Sun. Examples can include perihelion, aphelion, nodes, conjunction-related geometry, or other orbital milestones....
View event detailsMay 7, 2027
A planetary conjunction occurs when two planets, or a planet and another bright celestial object, appear close together in the sky from Earth’s perspective. The objects are not actually close together in s...
View event detailsMay 11, 2027
A planetary conjunction occurs when two planets, or a planet and another bright celestial object, appear close together in the sky from Earth’s perspective. The objects are not actually close together in s...
View event detailsMay 27, 2027
A planetary solar conjunction occurs when a planet appears close to the Sun in Earth’s sky. The planet may pass behind the Sun, near the Sun, or between Earth and the Sun depending on the planet and event ...
View event detailsMay 28, 2027
Greatest elongation occurs when an inner planet appears farthest from the Sun in Earth’s sky. This event applies only to Mercury and Venus because their orbits lie inside Earth’s orbit around the Sun. Fr...
View event detailsJun 14, 2027
A planetary conjunction occurs when two planets, or a planet and another bright celestial object, appear close together in the sky from Earth’s perspective. The objects are not actually close together in s...
View event detailsJun 18, 2027
A planetary orbital event marks a specific point or condition in a planet’s path around the Sun. Examples can include perihelion, aphelion, nodes, conjunction-related geometry, or other orbital milestones....
View event detailsJun 23, 2027
A planetary solar conjunction occurs when a planet appears close to the Sun in Earth’s sky. The planet may pass behind the Sun, near the Sun, or between Earth and the Sun depending on the planet and event ...
View event detailsJul 1, 2027
A planetary conjunction occurs when two planets, or a planet and another bright celestial object, appear close together in the sky from Earth’s perspective. The objects are not actually close together in s...
View event detailsJul 9, 2027
Planetary retrograde motion is an apparent reversal in a planet’s movement against the background stars. The planet does not physically stop and move backward in its orbit. Retrograde motion happens becaus...
View event detailsJul 15, 2027
Greatest elongation occurs when an inner planet appears farthest from the Sun in Earth’s sky. This event applies only to Mercury and Venus because their orbits lie inside Earth’s orbit around the Sun. Fr...
View event detailsAug 1, 2027
A planetary orbital event marks a specific point or condition in a planet’s path around the Sun. Examples can include perihelion, aphelion, nodes, conjunction-related geometry, or other orbital milestones....
View event detailsAug 7, 2027
A planetary orbital event marks a specific point or condition in a planet’s path around the Sun. Examples can include perihelion, aphelion, nodes, conjunction-related geometry, or other orbital milestones....
View event detailsAug 9, 2027
Planetary retrograde motion is an apparent reversal in a planet’s movement against the background stars. The planet does not physically stop and move backward in its orbit. Retrograde motion happens becaus...
View event detailsAug 11, 2027
A planetary conjunction occurs when two planets, or a planet and another bright celestial object, appear close together in the sky from Earth’s perspective. The objects are not actually close together in s...
View event detailsAug 11, 2027
A planetary solar conjunction occurs when a planet appears close to the Sun in Earth’s sky. The planet may pass behind the Sun, near the Sun, or between Earth and the Sun depending on the planet and event ...
View event detailsAug 11, 2027
A planetary solar conjunction occurs when a planet appears close to the Sun in Earth’s sky. The planet may pass behind the Sun, near the Sun, or between Earth and the Sun depending on the planet and event ...
View event detailsAug 19, 2027
A planetary conjunction occurs when two planets, or a planet and another bright celestial object, appear close together in the sky from Earth’s perspective. The objects are not actually close together in s...
View event detailsAug 26, 2027
A planetary conjunction occurs when two planets, or a planet and another bright celestial object, appear close together in the sky from Earth’s perspective. The objects are not actually close together in s...
View event detailsAug 31, 2027
A planetary solar conjunction occurs when a planet appears close to the Sun in Earth’s sky. The planet may pass behind the Sun, near the Sun, or between Earth and the Sun depending on the planet and event ...
View event detailsSep 14, 2027
A planetary orbital event marks a specific point or condition in a planet’s path around the Sun. Examples can include perihelion, aphelion, nodes, conjunction-related geometry, or other orbital milestones....
View event detailsSep 15, 2027
Planetary retrograde motion is an apparent reversal in a planet’s movement against the background stars. The planet does not physically stop and move backward in its orbit. Retrograde motion happens becaus...
View event detailsSep 24, 2027
Greatest elongation occurs when an inner planet appears farthest from the Sun in Earth’s sky. This event applies only to Mercury and Venus because their orbits lie inside Earth’s orbit around the Sun. Fr...
View event detailsSep 28, 2027
Opposition occurs when an outer Solar System object appears opposite the Sun in Earth’s sky. At opposition, Earth is positioned roughly between the Sun and the object. This geometry means the object rises ...
View event detailsOct 11, 2027
A planetary conjunction occurs when two planets, or a planet and another bright celestial object, appear close together in the sky from Earth’s perspective. The objects are not actually close together in s...
View event detailsOct 18, 2027
Opposition occurs when an outer Solar System object appears opposite the Sun in Earth’s sky. At opposition, Earth is positioned roughly between the Sun and the object. This geometry means the object rises ...
View event detailsOct 19, 2027
A planetary solar conjunction occurs when a planet appears close to the Sun in Earth’s sky. The planet may pass behind the Sun, near the Sun, or between Earth and the Sun depending on the planet and event ...
View event detailsOct 28, 2027
A planetary orbital event marks a specific point or condition in a planet’s path around the Sun. Examples can include perihelion, aphelion, nodes, conjunction-related geometry, or other orbital milestones....
View event detailsNov 25, 2027
A planetary conjunction occurs when two planets, or a planet and another bright celestial object, appear close together in the sky from Earth’s perspective. The objects are not actually close together in s...
View event detailsNov 27, 2027
A planetary orbital event marks a specific point or condition in a planet’s path around the Sun. Examples can include perihelion, aphelion, nodes, conjunction-related geometry, or other orbital milestones....
View event detailsNov 30, 2027
Opposition occurs when an outer Solar System object appears opposite the Sun in Earth’s sky. At opposition, Earth is positioned roughly between the Sun and the object. This geometry means the object rises ...
View event detailsDec 11, 2027
A planetary solar conjunction occurs when a planet appears close to the Sun in Earth’s sky. The planet may pass behind the Sun, near the Sun, or between Earth and the Sun depending on the planet and event ...
View event detailsDec 11, 2027
A planetary orbital event marks a specific point or condition in a planet’s path around the Sun. Examples can include perihelion, aphelion, nodes, conjunction-related geometry, or other orbital milestones....
View event detailsDec 15, 2027
Planetary retrograde motion is an apparent reversal in a planet’s movement against the background stars. The planet does not physically stop and move backward in its orbit. Retrograde motion happens becaus...
View event details