A rare green-glowing comet whose name is Comet C/2025 A6 (Lemmon) is making its closest swing to the past Earth. it is called as “this year’s brightest comet visible from Earth” by National Geographic this once-in-a-lifetime cosmic visitor is an icy leftover from the this is trhe its early solar system. It’s a must-see, because after this visit, it won’t be back for over a thousand years—specifically, between 1,150 to 1,350 years!
When and Where to Look for This Celestial Gem
The best time for skywatching of the this the Green-glowing comet is coming up fast!
Closest Approach and high Visibility
- Closest Approach Date: Tuesday October 21. It will be about 55 million of the miles from Earth Optimal Time: Look immediately after the sunset.
- Why is this date so good? The closest approach is with the with a new moon, making the night sky more in the darker and lighter of the celestial objects easier to spot.
- Duration: While Tuesday is peak the comet should remain the visible to the human eyes, it will start fading in the early November.
Finding the Comet
- Direction: Look low in to the western sky.
- Constellations: Later in October, it may be visible near constellations like the or Ursa Major, depending on your location, so check a stargazing application on the internet
- Tools: The comet is the loight object so while it wil be visible to the naked eye from very darker areas a good pair of a small telescope will make it much easier to look at its soft green glow.
Why Does Comet Lemmon Glow Green?
Comets are most of the just faint, fuzzy smudges, but Comet Lemmon has a secret weapon its brilliant emerald color.The Cause of this is The vivid hue comes from a gas called diatomic carbon ($C_2$).
The Science:
When sunlight hits this gas around the head of the comet it causes it to glow brightly with a distinct green color this is a process which is called fluorescence.
The Tails:
This green comet also sports two comet tails one made of dust and a separate one made of gas which can sometimes appear blue as it gets closer to the sun
The Science Behind the Once-in-a-Lifetime Sight
Comet C/2025 A6 (Lemmon) which is discovered on January 3, 2025, by the Mount Lemmon Survey in Tucson, Arizona is from our solar system’s formation.Scientists consider it an icy leftover from the earliest days of our planetary neighborhood.
conclusion:
This from Comet Lemmon is a cosmic spectacle. With its green glow absence you’ll want to see it. Grab your telescopes and then find a dark spot and look at this magnificent green-glowing comet.