Moon Will Pass in Front of Jupiter on September 8, 2026 : How to Watch the Occultation

What Is a Lunar Occultation?

The Moon will be transiting in front of Jupiter on September 8, 2026, from certain vantage points on planet Earth.

It is called a lunar occultation.

Lunar occultation is a celestial phenomenon that happens when the lunar surface passes in front of a far object, such as an astronomical body, to momentarily obscure the far object from the observer's view.

What will happen to Jupiter?

For the people in the proper viewing area Jupiter will seem to race up to the moon before fading behind the lunar disk.

Eventually Jupiter will appear behind the Moon.

This is very interesting since Jupiter is one of the brightest objects in the night sky.

Some of the most interesting sky events during the month are lunar and planetary pairings, which are noted on astronomical calendars for September 2026.

Why does the Moon appear to cover Jupiter?

The Moon is a lot closer to earth than Jupiter.

Jupiter is many times larger than the Moon, but is far, far, far away, and thus seems to be a somewhat small point of light in the terrestrial sky.

It is thus possible, from some vantage points, for the Moon to come directly between the Earth and Jupiter.

Like an eclipse, but different geometry and scale.

Is this an eclipse?

No.

Jupiter will not be eclipsed by the moon, it is a lunar occultation.

A solar eclipse occurs when the Moon comes between the Sun and the Earth, and cuts out sunlight.

In a lunar occultation, from the observer's point of view, the Moon simply obscures a far away object.

The event is thus an alignment effect to a large extent.

Can everyone see Jupiter disappear?

No.

A significant note to skywatchers:

Because of the slight variation in the apparent position of the Moon from one location on the Earth to another, a lunar occultation can be observed only from specific areas of the globe.

The Moon and Jupiter will appear close together in the sky for people not in the path of totality but may not appear to be totally eclipsed by the Moon.

Observing guides for the astronomy should thus be consulted for the actual observing conditions at your site.

How to observe the Moon and Jupiter

For the general alignment, if the event is visible from your location you can observe it using the naked eye.

Binoculars will offer a more interesting view and a small telescope might make the disappearance and reappearance of Jupiter easier to observe.

But conditions like light pollution in the area and the object's elevation above the horizon may have an impact on visibility.

Do not look into binoculars or telescope at the Sun without proper safety equipment that is designed and used correctly for solar viewing.

Why astronomical events like this matter

Events involving the Moon and planets provide an easy way for people to become interested in astronomy.

They also illustrate the accuracy of the prediction of the positions of objects in the solar system.

The path of the Moon and the planets are well known, so astronomers can predict when the Moon will move in front of the planet Jupiter.

Conclusion

This is a very unique planetary conjunction that will happen on September 8, 2026, and will be an interesting opportunity for skywatchers.

In the right place and time, Jupiter can vanish behind the Moon and then reappear.

If you need to see the event, go outside, but first verify the time and location for the event on a trusted meteorological source.