South Africans to Witness Comet Lemmon: How and When to See October’s Rare Celestial Event

South Africans will have the opportunity to witness a rare and dazzling sight later this month as Comet C/2025 A6 (Lemmon) makes its closest approach to Earth — an event astronomers are describing as one of the most remarkable skywatching moments of 2025.

Contrary to recent viral posts falsely claiming a comet called C/2025 A1 will pass closer than the Moon, verified data from the European Space Agency (ESA) and NASA’s Jet Propulsion Laboratory (JPL) confirm that Comet C/2025 A6 (Lemmon) is the object visible this month — and it will pass at a perfectly safe distance.

Confirmed scientific facts

Comet Lemmon is a long-period comet originating from the distant Oort Cloud, a region of icy bodies at the farthest edges of our solar system. After tens of thousands of years travelling inward, it will reach its closest point to Earth on 21 October 2025, at roughly 90 million kilometres (0.6 AU).

Although nowhere near the Moon’s orbit, the comet will still appear bright enough to be seen from Earth, potentially reaching a magnitude of +4 to +5 — visible to the naked eye in dark skies and easily viewable with binoculars.

Coincidentally, Comet Lemmon’s appearance overlaps with Comet C/2025 R2 (SWAN) and the Orionid meteor shower, creating a rare trifecta of cosmic activity.

How and when South Africans can see it

According to NASA and the South African Astronomical Observatory (SAAO), Comet Lemmon will be best viewed during mid-to-late October, peaking between 20 and 22 October.

• Best time: Around 7 pm to 8 pm, shortly after sunset.
• Direction: Look towards the north-western horizon with a clear, dark sky.
• Visibility: Several nights, with brightness fading after closest approach.

Viewers in KwaZulu-Natal and northern South Africa should seek elevated or rural locations with minimal light pollution, as the comet will appear low on the horizon.

What you’ll need to view the comet

• Naked eye: Under dark, rural skies, the comet may appear as a faint greenish glow with a short tail.
• Binoculars: A pair of 7×50 or 10×50 binoculars will make the comet’s tail and coma clearly visible.
• Telescope: Even small telescopes will reveal more detail and motion from night to night.
• Camera: A DSLR or mirrorless camera with a long exposure (15–30 seconds) can capture striking images.

The comet is expected to display a green hue, caused by sunlight exciting diatomic carbon gas in its coma — a visual hallmark of active comets.

Why this event matters

Comet Lemmon won’t return for many thousands of years, making October 2025 the only opportunity in our lifetimes to see it. The combination of two visible comets and a meteor shower in one month adds to the astronomical rarity.

Despite misleading social media claims, no comet will come dangerously close to Earth this year. Comet Lemmon’s approach is both safe and scientifically verified.

Where to find reliable updates

For verified information and live tracking, visit:

• NASA Jet Propulsion Laboratory (JPL) Small-Body Database
• European Space Agency (ESA)
• South African Astronomical Observatory (SAAO)

Quick facts for comet Lemmon’s fly-by

• Closest approach: 21 October 2025
• Distance from Earth: ~90 million km (0.6 AU)
• Visibility: Evening sky, north-west direction
• Brightness: +4 to +5 magnitude
• Equipment: Best with binoculars or telescope
• Coinciding events: Comet SWAN and Orionid meteor shower

At Newcastillian News, we’ll continue to share verified updates as Comet Lemmon brightens the southern skies — a moment to remind us just how extraordinary our universe can be.

What are your thoughts on this, let us know below.

Be sure to read this blast from the past, Optical atmospheric phenomena spotted over Newcastle, KZN.