7 Celestial Events You Can’t-Miss on Oct. 3–4, 2025
:contentReference[oaicite:27]{index=27}*Satellites streak across the sky at dawn/dusk.* SpaceX’s **Starlink trains** are often visible shortly after launch: bright, evenly-spaced lights that move together like a miniature “train”:contentReference[oaicite:28]{index=28}. Meanwhile, the **ISS** is visible as a bright, fast-moving “star” about 90 minutes apart whenever it crosses your sky. NASA notes that all ISS sightings occur within a few hours of sunrise or sunset:contentReference[oaicite:30]{index=30}. Sign up for NASA’s Spot the Station to get precise pass times for your location. :contentReference[oaicite:31]{index=31}*Comet SWAN near the star Spica*. Two new comets will be gracing the sky in October. **C/2025 R2** was just discovered in SWAN/SOHO images, and amateur trackers report it near 7th magnitude. Models forecast it will peak around mag +6 to +7 in mid-October:contentReference[oaicite:32]{index=32}, flirting with naked-eye visibility. It should appear near Spica in Libra in mid-Oct. **C/2025 A6**, found this year, is brightening fast. By late October it may reach mag +4:contentReference[oaicite:33]{index=33}. Lemmon climbs high in the pre-dawn sky, low in the east near the Big Dipper:contentReference[oaicite:34]{index=34}. British astrophotographer Nick James encourages watchers: *“This comet is developing very nicely… well-placed for observation in the morning sky… It is definitely worth getting up for!”*:contentReference[oaicite:35]{index=35}. Binoculars or a small telescope will reveal each comet’s greenish coma
