April Lyrids Meteor Showers (Peak time and Condition)

April Lyrids reach its maximum at the end of April every year. April Lyrids sometimes shows outbursts such as 1922, 1945 and 1982. Its peak is very narrow and sharp. In Radio Meteor Observations, April Lyrid activity is caught every year. But it is very weak activity level and norrow period. The peak occured at λ=32°.2. This is earier than visual observation peak at λ=32°.32.

Information of Lyrids

Name (code) April Lyrids (006 LYR)
Active Visual(IMO) 14th April – 30th April
Radio(IPRMO) 22nd April – 23rd April
Maximum Visual(IMO) λ=32°.32
Radio(IPRMO) λ=32°.2
Radiant α = 271° / δ = +34°
feature ZHR(max):18, r=2.1, V:49km/s
Radio) Maximum Activity Level=0.6 FWHM:-0°.40/+0°.60
Parant Comet C/1861G1 Thatcher

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)

North America

Time : Daylite-Saving Time

Year Peak Time and Condition (λ=32°.32) Comments for Radio Obs.
AST(ADT) EST(EDT) CST(CDT) MST(MDT) PST(PDT)
Year Peak Time and Condition
=32°.32)
2021 10h 22nd Apr.Good 09h 22nd Apr.Good 08h 22nd Apr.Good 07h 22nd Apr.Good 06h 22nd Apr.Good under good conditions
2022 16h 22nd Apr.Bad 15h 22nd Apr.Bad 14h 22nd Apr.Bad 13h 22nd Apr.Bad 12h 22nd Apr.Normal better condition at western
2023 22h 22nd Apr.Good 21h 22nd Apr.Good 20h 22nd Apr.Good 19h 22nd Apr.Good 18h 22nd Apr.Good better condition at eastern
2024 04h 22nd Apr.Good 03h 22nd Apr.Good 02h 22nd Apr.Good 01h 22nd Apr.Good 00h 22nd Apr.Good under good conditions
2025 10h 22nd Apr.Good 09h 22nd Apr.Good 08h 22nd Apr.Good 07h 22nd Apr.Good 06h 22nd Apr.Good under good conditions

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

Other area

Time : Standard Time (NOT daylight-saving time)

Year Peak Time and Condition (λ=32°.32) Comments for Radio Obs.
GMT(UK) CET(Italy) IST(India) JST(Japan)
Year Peak and Condition
=32°.32)
2021 13h 22nd Apr.Bad 14h 22nd Apr.Bad width= 18h 22nd Apr.Bad 22h 22nd Apr.Good Japan is better condtion
2022 19h 22nd Apr.Normal 20h 22nd Apr.Normal 00h 23nd Apr.Best 04h 23nd Apr.Best better condition in Asia
2023 01h 23nd Apr.Best 02h 23nd Apr.Best 06h 23nd Apr.Best 10h 23nd Apr.Normal better condition in Europe
2024 07h 22nd Apr.Best 08h 22nd Apr.Best 12h 22nd Apr.Bad 16h 22nd Apr.Bad Europe under good condition
2025 13h 22nd Apr.Good 14h 22nd Apr.Good 18h 22nd Apr.Good 22h 22nd Apr.Good Japan is better condition

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

Results of April-Lyrids

Result of April Lyrids by using worldwide Radio Meteor Observations.
icon Results of April-Lyrids

Posted by h-ogawa