December Skies

01 Dec – comet 24P/Schaumasse (2026) (mag ~10) crossing Leo in the morning sky, Moon interferes 5-17 Dec
01 Dec – comet 210P/Christensen (2025) (mag ~11) low in Virgo before morning twilight, Moon interferes 5-17 Dec
03 Dec – Moon transits Pleiades – occns start ~20:30EST
04 Dec – Full Moon (18:14EST)
05 Dec – (78741) 2002 TN272 occults UCAC4 582-024918 (mag 11.0) for Yarker, Sydenham, Morrisburg (21:47EST)
05 Dec – comet C/2025 T1 (ATLAS) (mag ~10) moving Sagitta to Aquila, Moon interferes after 22 Dec
06 Dec – Mercury  (mag -0.5) at GEW low in SE at nautical dawn
07 Dec – Moon, Jupiter, Castor, Pollux in pre-dawn sky or watch them rising in the evening

08 Dec – (865) Zubaida occults TYC 4899-289-1 (mag 9.2) for Morrisburg (01:23EST)
08 Dec – minor planet (16) Psyche at opposition (mag 9.4)
10 Dec – comet C/2025 K1 (ATLAS) (mag ~11, dimming rapidly) circumpolar in Cassiopeia moving southwards, culminates early evening.
10 Dec – Moon squeaks by Regulus (01:30EST)
11 Dec – Last Quarter Moon
12 Dec – (2877) Likhachev occults UCAC4 563-042836 (mag 11.2) for Cardinal (00:16EST)
13 Dec – (1540) Kevola occults UCAC4 626-037357 (mag 11.3) for Harrowsmith and Kingston southeast to eastern Prince Edward County (04:40EST)
14 Dec – Geminid meteor shower peaks 03:00EST
16 Dec – (31817) 1999 RK134 occults UCAC4 543-044648 (mag 11.6) south of Battersea to Kingston waterfront (03:46EST)
19 Dec – New Moon (20:43EST)
21 Dec – winter solstice (10:03EST)
22 Dec – Ursid meteor shower peaks before dawn
22 Dec – (1844) Susilva occults TYC 1307-525-1 (mag 10.2) for Bellrock, Elgin, Athens, Cardinal, Morrisburg (18:58EST)
24 Dec – (132968) 2002 TT136 occults UCAC4 588-011068 (mag 11.5) for Elgin, Athens, Brockville (00:31EST)
25 Dec – Moon occults λ Aqr (mag 3.8)
27 Dec – First Quarter Moon