η-Aquariids Meteor Showers (Peak time and Condition)

Pocket

η-Aquariids is one of major meteor showers in southern observers. In 2012 and 2013, a little strong activity were observed in the world. Since &eta-Aquariids is a relatively broad maximum, clear activity continues for a few days. The maximum occurs at λ=45°.5 by The International Meteor Organization. Radio Meteor Observations is also possible to see its activities. The maximum is observed around λ=44°.5. It is a possibility of influence of May Daytime Meteor Showers after η-Aquariids activity.

Information of η-Aquariids

Name (code)η-Aquariids (031 ETA)
ActiveVisual(IMO)19th April – 28th May
Radio(IPRMO)29th April – 11th May
MaximumVisual(IMO)λ=45°.5
Radio(IPRMO)λ=44°.5
Radiantα = 338° / δ = -1°
featureZHR(max):60, r=2.4, V:66km/s
Radio) Maximum Activity Level=1.0 FWHM:-1°.50/+5°.10
Parant Comet1P/Halley

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 : Daylite-Saving Time

YearPeak Time and Condition (λ=45°.5)Comments for Radio Obs.
AST(ADT)EST(EDT)CST(CDT)MST(MDT)PST(PDT)
YearPeak Time and Condition
=45°.5)
2021May 5th 23hnormalMay 5th 22hnormalMay 5th 21hnormalMay 5th 20hnormalMay 5th 19hnormalpeak occurs under horizon
2022May 5th 05hBestMay 5th 04hBestMay 5th 03hGoodMay 5th 02hGoodMay 5th 01hNormalbetter condition at eastern
2023May 5th 11hBestMay 5th 10hBestMay 5th 09hBestMay 5th 08hBestMay 5th 07hBestBest condition !
2024May 5th 18hnormalMay 5th 17hnormalMay 5th 16hnormalMay 5th 15hnormalMay 5th 14hnormalpeak occurs under horizon
2025May 6th 00hnormalMay 5th 23hnormalMay 5th 22hnormalMay 5th 21hnormalMay 5th 20hnormalpeak occurs under horizon

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=45°.5)Comments for Radio Obs.
GMT(UK)CET(Italy)IST(India)JST(Japan)
YearPeak and Condition
=45°.5)
2021May 6th 02hnormalMay 6th 03hgood width=May 6th 07hBestMay 6th 11hBestbest condition in Asia
2022May 6th 08hBestMay 6th 09hBestMay 6th 13hgoodMay 6th 17hNormalbetter condition in Europe
2023May 6th 14hNormalMay 6th 15hNormalMay 6th 19hNormalMay 6th 23hNormalpeak occuers under horizon
2024May 5th 21hNormalMay 5th 22hNormalMay 6th 02hNormalMay 6th 06hBestEast Asia is best condition
2025May 6th 03hGoodMay 6th 04hBestMay 6th 08hBestMay 6th 12hNormalEast Europe is better

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

Results of η-Aquariids by Radio Meteor Observations

Result of η-Aquariids is recorded by worldwide radio meteor observers.
icon Result of η-Aquariids