Skywatchers are in for a rare celestial treat this week as seven planets—Mars, Jupiter, Uranus, Venus, Neptune, Mercury, and Saturn—align in the evening sky in a phenomenon known as a planetary parade. This will be the last time such an alignment is visible under optimal conditions until 2040.
The best chance to witness this cosmic event will be just after sunset on Tuesday, Wednesday, Thursday, and Friday. However, the window to see all seven planets at once will be brief.
- Easily Visible to the Naked Eye: Mercury, Venus, Jupiter, and Mars will be the most noticeable. Venus and Jupiter will shine the brightest, while Mars will have a distinct reddish hue.
- More Challenging to Spot: Saturn will be low on the horizon and could be harder to see without an unobstructed view.
- Requires a Telescope: Uranus and Neptune will need magnification to be visible.
Dr. Edward Bloomer, an astronomer at the Royal Observatory Greenwich, explains that while this is a rare moment when all seven planets align in a “convenient place” in the sky, some will disappear quickly.
“You really only have a few minutes after sunset to catch Saturn and Mercury before they drop below the horizon. After that, Venus, Jupiter, and Mars will be visible for much longer,” Dr. Bloomer said.
For the clearest view, find a location with minimal light pollution and an open horizon. Avoid looking at your phone to let your eyes adjust to the darkness—this can take up to 30 minutes.
Weather conditions will also play a key role in visibility:
- Tuesday: Starts clear, but clouds and rain may arrive later.
- Wednesday: Generally cloudier with some rain showers.
- Thursday & Friday: Drier and clearer conditions expected, though mist and fog may develop later at night. Viewing shortly after sunset is recommended.
While the planets won’t be physically close to each other—remaining separated by vast distances in space—their alignment in Earth’s sky creates a spectacular visual display.
Dr. Bloomer encourages people to use this event as an opportunity to explore astronomy more regularly.
“Observing the heavens is a chance to witness the ongoing mechanics of the solar system at work,” he said.
Skywatchers are encouraged to capture and share their best shots of this rare planetary alignment. Don’t miss your chance—the next one won’t come until 2040!