Sunrise, Friday the 13th: four planets to align over Sydney

Sunrise, Friday the 13th: four planets to align over Sydney

Clouds forecast to clear before the once-in-a-lifetime astrological spectacle
Forget the museum, the real planetary alignment should be visible in Friday morning's sky.

For the first time in more than century, four planets will align over Sydney’s eastern horizon this Friday the 13th.

Jupiter will line up with Venus, Mercury and Mars and –- weather permitting –- be visible in the dawn sky.

The last time this happened was in 1910.

"Every couple of years you get two or three planets that come close together, but to have four is particularly rare," the Sydney Observatory's education officer, Geoffrey Wyatt, told AAP today.

From 5 a.m. on Friday, the four planets will be visible -– if the clouds stay away.

The weather forecast promises clouds will clear on Thursday afternoon for a clear sunrise on the auspicious morning.

It begs the question -- what impact will the planetary alignment at dawn this Friday have on Sydneysiders?

"Astronomers don't put any credence into that, in terms of the force exerted on people," Wyatt said.

The Sydney Observatory is hosting a breakfast for planetary viewing –- and has a less spectacular back-up plan of watching 3D TV if it’s cloudy.

Otherwise, Sydneysiders are expected to line cliff-tops on the coast to watch the four planets on the horizon.

Astronomer’s Breakfast 5 a.m.-7 a.m., Friday May 13, Adults $21, concession $18, children $14, or $56 for a family. Sydney Observatory, Watson Road, Observatory Hill, The Rocks, +61 (0)2 9921 3485,