Comet C/2025 A6, known as Comet Lemmon, made its closest approach to Earth, on Tuesday, Oct. 21 for a once in a lifetime window to view the celestial object.
After November 12, 2025, it will not be visible from Earth again until 3175, making its visibility a once in a lifetime experience, according to Astronomy Magazine.
Comet Lemmon was discovered on Jan. 3, 2025, at the Mount Lemmon Survey, in Tucson, Arizona. It has a characteristic green tint, as a result of solar radiation breaking down the carbon molecules around the comet, as it approaches the sun.
To view the comet, look towards the northwest sky, around an hour and a half after sunset. Daily sunset times can be found on the 18-Storm Team weather homepage.
Space.com then recommends locating the constellation Ursa Major, or the Big Dipper, and following the curve of the "handle" of the constellation down to the star Arcturus. Comet Lemmon will then be visible just north of Arcturus, which has a distinctive orange glow.
Although Comet Lemmon can be seen with the naked eye under very dark skies, binoculars or a small telescope will aid in viewing the object. A photo of the Comet can also be captured by most smartphone cameras, through the use of the long exposure setting.