Comets visible from the UK

This table lists the interval when comets are expected to be brighter than 12th magnitude and gives the period of visibility from the UK and elsewhere.

Comet			Max	From (elsewhere)	From (UK)	To (UK)		To (elsewhere)	Notes
2017 K2 (PanSTARRS)	 8				2021 November	2024 February			Not continuously visible
2019 L3 (ATLAS)		10				2021 July	2022 April	2022 June
2019 T4 (ATLAS)		11	2022 January		2022 April	2022 May	2022 July
2019 U5 (PanSTARRS)	11				2023 January	2023 May	2023 June
2020 K1 (PanSTARRS)	10	2022 December						2023 November
2020 V2 (ZTF)		 9				2022 November	2023 September	2023 November	Not continuously visible
2021 P4	(ATLAS)		11										Not observable
2021 S3 (PanSTARRS)	 7	2023 September		2024 January	2024 August
2021 T4 (Lemmon)	 8	2023 May						2023 October
2022 E2 (ATLAS)		13				2024 October	2025 January
2022 E3 (ZTF)		 6				2022 October	2023 March	2023 April	
2023 A3 (Tsuchinshan-A)  3?				2024 March	2024 December			Not continuously visible
2P/Encke		 6				2023 August	2023 October	
62P/Tuchinshan		 8				2023 October	2024 March
103P/Hartley		 8				2023 August	2023 December
144P/Kushida		 7				2023 September	2024 May
185P/Petriew		11	2023 June						2023 July
226P/Pigott-LINEAR-Kowa	10	2023 August		2023 December	2024 March
237P/LINEAR		10	2023 February		2023 April	2023 September
364P/PanSTARRS		 8				2023 February	2023 April	2023 June
12P/Pons-Brooks		 4				2023 December	2024 April	2024 August
13P/Olbers		 7				2024 February	2024 September	2024 October
33P/Daniel		11				2024 November	2025 January
46P/Wirtanen		11										Not observable
154P/Brewington		11	2024 May		2024 July	2024 August
333P/LINEAR		10				2024 November	2024 December
24P/Schaumasse		 8				2025 October	2026 April
21P/Giacobini-Zinner	11										Not observable
289P/Blanpain		11										Not observable
414P/STEREO		11				2025 August	2025 September
88P/Howell		 9	2026 February		2026 July	2026 July
1P/Halley		10				2060 October	2061 March
1P/Halley		 1				2061 July	2061 August
109P/Swift-Tuttle	 1				2126 January	2126 August