The Sagittarius meteor shower was discovered in 1957-1958, when A.A. Weiss was conducting a research on radar meteors. He reported that this group could produce about 30 meteors per hour, with radiation points located at 304 degrees right ascension and - 36 degrees declination. Weiss pointed out that no activity of the group was observed before 1957, and in 1957 "almost reached the limit of equipment". The maximum date is June 11, lasting for 5 days.
When G. Gartrell and W.G. Elford used more advanced equipment to observe, only four meteors were observed, the maximum appeared on June 10, and the radiation points were at 297 degrees of right ascension and - 34 degrees of declination.
There are few reports of this cluster in visual observation, especially most famous meteor shower tables in the southern hemisphere do not give related radiation points. It was mainly observed by the observers of Jeff Wood's Western Australia Meteor Organization in 1980. This group, known as the "Alpha Meteor Shower in the Microscope", reached its maximum on June 11. The radiation point is located at 305 degrees of right ascension, - 36 degrees of declination, and the ZHR reaches 1.43+/- 0.13. The meteor shower ephemeris of the British Meteor Association shows that the activity time of the group is June 8-16, with a ZHR of 4, and the radiation point is located at 304 degrees of right ascension and - 35 degrees of declination. [1]
