It’s a WAS Star Party for our friends to see 2 comets Lemmon and SWAN through our 14” EdgeHD telescope.
Comet SWAN (C/2025 R2), Phil Harrington
On October 21, Comet Lemmon makes its closest pass by Earth—about 0.6 AU away. Around that time, it could brighten to 4th magnitude and become visible to the naked eye. Even smartphone cameras with night-sky modes may capture its glowing green core and a hint of its tail. Look low in the northwest after sunset.
This week, Comet Lemmon races across Canes Venatici and Boötes into Serpens Caput—dropping lower and shifting from northwest to west by the end of dusk.
Meanwhile, Comet SWAN sweeps swiftly through Scutum and southern Aquila, shining high in the southwest to south after dark. As of 17 October 2025, the comet has an apparent magnitude of +6.0.
Bring binoculars if you have them or look through the dome telescope. We’ll have a SeeStar S50 on hand to view the comet live.