- 103P/Hartley

At perihelion, the comet will be well-placed in the sky for the observers from the Northern Hemisphere. It might become visible through small telescopes or large binoculars already at the end of September.

103P/Hartley is a small short-period comet discovered by Malcolm Hartley in 1986 at the Siding Spring Observatory, Australia. On November 4, 2010, the comet was visited by NASA’s Deep Impact spacecraft

• Perihelion: 12th October (magnitude 8.4)
• Closest approach to Earth: 26th September (magnitude 8.3)