Rare Green Comet Shines in Australian Skies

By Marco Christiansen | Jun 21, 2021

Nishimura's Return

After 437 years, the once-in-a-lifetime sight of the Nishimura comet gracing our skies has arrived.

Nishimura's Discovery

Amateur Japanese astronomer Nishimura discovered this nearly kilometer-wide rock and ice comet on August 11.

Northern Hemisphere View

Stargazers in the northern hemisphere have the privilege of viewing the comet this week, coming as close as 125 million kilometers to Earth.

Speedy Traveler

Nishimura travels at an astonishing speed of 386,000 km/h, making it a fast-moving spectacle across the night sky.

Closest Approach

The comet will be at its closest point to the Sun on September 17, potentially facing destruction due to intense heat.

Chance of Survival

NASA's Paul Chodas believes there's a chance the comet will survive its passage, offering a dazzling sight to the southern hemisphere by late September.

Once in a Lifetime

Nishimura, or C/2023 P1, won't return until 2317, making this a truly 'once in a lifetime' opportunity for observers.

Viewing Tips

To spot it, you'll need good binoculars and knowledge of where to look, according to Mr. Chodas.

The comet's greenish tail is a result of its higher gas-to-dust ratio, creating a mesmerizing celestial display.

Comet's Green Tail