Geminids Meteor Shower (Peak Time and Condition)


Geminids is one of the great meteor showers in a year. Under the good condtion night, a lot of meteors more than 500 in a night were presented. Usually, HR(Hourly Rate) is around 40 – 60.
Radio Meteor Observation is also abele to see a lot of meteor echoes. The maximum (λ=262°.0) by radio meteor observation is earlier than visual observation (λ=262°.2).

Information of Geminids

Name (code)Geminids (004 GEM)
ActiveVisual(IMO)Dec.4th – Dec.17th
Radio(IPRMO)Dec.9th – Dec.16th
Radiantα = 112° / δ = +33°
featureZHR(max):120, r=2.6, V:35km/s
Radio) Maximum Activity Level=3.5 FWHM:-1°.3/+0°.5
Parant Comet(3200)Phaethon

Reference and Useful Links

2021 Meteor Shower Calendar (International Meteor Organization)
– A new Working List of meteor showers (Rainer Arlt et al), WGN 34:3(2006)
– Meteor Shower Workbook 2014 (J.Rendtel) ? International Meteor Organization (2014)
– Major and Daytime Meteor Showers using Radio Meteor Observation in the World covering the period 2001-2016(H.Ogawa and C.Steyaert), WGN 45:4(2017)
The American Meteor Society (AMS)

Conditions in the future (2021-2025) for Radio Meteor Observations

Below lists are observig conditions for radio meteor observers in 2021, 2022, 2023, 2024 and 2025. This is listed for radio observers (NOT for visual observers). You can see visual observing conditions as following AMS site.
icon Conditions for Visual Observers (by AMS)

Conditions in North America

Time : Standard Time

YearPeak Time and Condition (λ=262°.2)Comments for Radio Obs.
YearPeak Time and Condition
2021Dec 14th 03hbestDec 14th 02hbestDec 14th 01hbestDec 14th 00hbestDec 13th 23hbestunder best condition
2022Dec 14th 09hnormalDec 14th 08hnormalDec 14th 07hgoodDec 14th 06hgoodDec 14th 05hbestwestern is better condition
2023Dec 14th 15hbadDec 14th 14hbadDec 14th 13hbadDec 14th 12hbadDec 14th 11hbadradiant under horizon
2024Dec 13th 21hbestDec 13th 20hgoodDec 13th 19hgoodDec 13th 18hnormalDec 13th 17hbadbetter condition in eastern
2025Dec 14th 03hbestDec 14th 02hbestDec 14th 01hbestDec 14th 00hbestDec 13th 23hbestunder best condition

Major cities (example)
AST(Halifox, etc.), EST(NewYork,Ottawa, etc.), CST(Cicago, etc.), MST(Denver, etc.), PST(LosAngeles, etc.)

Conditions in Other region

Time : Standard Time (NOT daylight-saving time)

YearPeak Time and Condition (λ=262°.2)Comments for Radio Obs.
YearPeak and Condition
2021Dec 14th 07hbestDec 14th 08hgoodDec 14th 12hbadDec 14th 16hbadWest Europe is better
2022Dec 14th 13hBadDec 14th 14hBadDec 14th 18hBadDec 14th 22hBestbetter condition in East Asia
2023Dec 14th 19hGoodDec 14th 20hGoodDec 15th 00hBestDec 15th 04hBestbest condition in all Asia
2024Dec 14th 01hBestDec 14th 02hBestDec 14th 06hGoodDec 14th 10hBadbest condition in Europe
2025Dec 14th 07hBestDec 14th 08hGoodDec 14th 12hBadDec 14th 16hBadbetter condition in west Europe

GMT:United Kingdom, CET:Itarly, IST:India, JST:Japan

Results of Geminids by Radio Meteor Observations

Result of Geminids is recorded by worldwide radio meteor observers.
icon Result of Geminids