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Quadrantids is one of the greatest meteor shwoers in a year. It has a lot of meteors. Although the maximum of solar longitude is 283°.16 by IMO, they has two peaks which are 283°.1 and 283°.4 by The Nippon Meteor Society.
In Radio Meteor Observation, Quadrantids is also caught clearly every year. In 2002, especially, the biggest peak was observed. Although Quadrantids has a sharp peak, the active period is longer by the results of adio Meteor Observation.

Information of Quadrantids

Name Quadrantids
Solar Longitude(MAX) 283°.16
Radiant α = 230° / δ = +49°
feature ZHR(max):120, r=2.0, V:40km/s
Parant Comet 96P/Machholz 1
Reference The International Meteor Organization

Condition of observation in maximum night (2016 - 2020)

Jan. MAX.Time(UT) moon
(4th 0h)
2016 4th 08h 24 East America is best condition.
2017 3rd 14h 6 No interference of moonlight
2018 3rd 20h 17 Observation under full moon
2019 4th 02h 28 best condition for observation
2020 4th 08h 9 East America is best condition.


Result of Quadrantids is recorded.(mainly Radio Meteor Observation)
icon Result of Quadrantids