Results of Daytime Meteor Showers in May and June
This page provides rsults of daytime meteor showers in May and June. (Results of Arietids and ζ-Perseids is here…)
Northern ω-Cetids
Southern ω-Cetids
ε-Arietids
May Arietids
ο-Cetids
β-Taurids
Northern ω-Cetids
Result
Northern ω-Cetids peak is around solar longitude λ⊙=47°.5. This peak time is lacated in decrease process of η-Aquariids. It is therefore difficult to see a clear activity. Although the activity level in 2014 increased around λ⊙=47°.6 – 48°.0, it was uncertain.
Long Term Activity Profile (period for 2006-2020)
Information : Introduction of Northern ω-Cetids
Southern ω-Cetids
Result
2019 Southern ω-Cetids activity increased around λ⊙=49°.2～50°.0 (estimated peak time was around λ⊙=49°.6). The activity in 2012 inreased too.
If long time activity profile separates two compornents, one compornent (Comp-A) is esteimated that peak time was around λ⊙=45°. Another (Comp-B) has a possibility of this meteor shower. Comp-B has a peak time around λ⊙=49°.5.
Long Term Activity Profile (period for 2006-2020)
Comp-B profile is following table.
| source | Peak Solar Longitude | FWHM | Peak Activity Level |
|---|---|---|---|
| 2006-2019 | λ⊙=49°.5 | -2°50 / +3°.0 | 0.3 |
Information : Introduction of Southern ω-Cetids
ε-Arietids
Result
Although some weak activities were observed in 2008, 2011, 2014 and 2017, they are too weak activity to say clear activities. If long time activity profile separates two compornents, one compornent (Comp-A) is esteimated that peak time was around λ⊙=45°.5. Another (Comp-B) has a possibility of this meteor shower. Comp-B has a peak time around λ⊙=48°.5. Since the estimated peak activity level was 0.1, however, it is difficult to separate ε-Arietids and usual activity.
Long Term Activity Profile (period for 2006-2020)
Comp-B profile is following table.
| source | Peak Solar Longitude | FWHM | Peak Activity Level |
|---|---|---|---|
| 2006-2019 | λ⊙=48°.5 | -2°.0 / +3°.0 | 0.1 |
Information : Introduction of ε-Arietids
May Arietids
Result
Although a peak time is around solar longitude λ⊙=55°.5, a clear activity has not been observed since 2006.
Long Term Activity Profile (period for 2006-2020)
Information : Introduction of May Arietids
ο-Cetids
Result
There was no clear activiy since 2006. Although the activity level in 2018 increased around λ⊙=59°.6, it was too short peak period to say that it was caused by this meteor shower.
Long Term Activity Profile (period for 2006-2020)
Information : Introduction of ο-Cetids
β-Taurids
Result
Although a peak time is around solar longitude λ⊙=96°.7, a clear activity has not been observed since 2006.
Long Term Activity Profile (period for 2006-2020)
Information : Introduction of β-Taurids