Moon to occult Jupiter in daylight on Sept. 8

Astronomers announced that on the morning of September 8, the Moon will pass directly in front of the planet Jupiter, creating a rare daytime occultation that will be visible to observers in parts of North America, Europe, and Asia before dawn. The event, which will occur at about 04:30 UTC, will see the bright Jovian planet disappear behind the lunar limb for a brief moment, a phenomenon that is uncommon because it requires the Moon’s orbit to align precisely with the planet’s position during daylight hours.

The occultation will last only a few minutes, with the Moon’s shadow moving across the planet’s disk at a speed of roughly 15 km s⁻¹. Because the event takes place during daylight, it will be best viewed with binoculars or a small telescope, and observers will need to be in locations where the sky is still dark enough for Jupiter to be visible before the Sun rises. Astronomical societies have issued viewing maps and recommended safety guidelines for those wishing to capture the fleeting moment.

This celestial alignment offers a unique opportunity for amateur astronomers and sky‑watchers to witness a lunar occultation of a major planet—a rare spectacle that will not recur until 2025. The event is expected to attract attention from both professional and amateur astronomers alike, who will record the brief disappearance of Jupiter as the Moon eclipses it before the dawn light washes over the horizon.