The Result of April-Lyrids
Annual Variations
Information (as following list)
| Year | source | Comments (Time:UT) |
|---|---|---|
| 2022 | Worldwide | The peak occurred at λ⊙=32°.4 as same as last year. |
| 2021 | Worldwide | no unusual activity. The peak occurred at λ⊙=32°.4 |
| 2020 | WorldWide | Estimated peak time was later as λ⊙=32°.6. |
| 2019 | WorldWide | As same as 2018 Lyrid activity. |
| 2018 | WorldWide | Estimated peak time was later. |
| 2017 | WorldWide | Weaker activity. |
| 2016 | WorldWide | no unusual activity. |
| 2015 | WorldWide | Weaker activity. Estimated peak time was later as λ⊙=32°.63. |
| 2014 | WorldWide | Higher activity comparing with annual year. |
| 2013 | WorldWide | Higher activity than annual year. |
| 2012 | WorldWide | Sub peak was over arounnd solar longitude 32°.12. |
| 2011 | WorldWide | Sub peak was obsereved around solar longitude 31°.97. |
| 2010 | WorldWide | no unusual activity. |
| 2009 | WorldWide | Sub peak was observed around Solar Longitude=32°.22. |
| 2008 | WorldWide | no unusual activity. |
| 2007 | WorldWide | no unusual activity. |
| 2006 | – | – |
| 2005 | – | – |
| 2004 | – | – |
| 2003 | WorldWide | The peak was unclear. (around 22nd 16h?) |
| 2002 | Misato Obs. | The peak was 19:00-21:00 on 22nd with HR=42 |
| 2001 | Misato Obs. | The peak was 23:00 on 21st with HR=36 |
| 2000 | Chigusa HS | It seems that the peak was around 21:00 on 22nd with HR=20 |
Introduction
Introduction and observing conditions are provided this content.