Active: December 4-17; Maximum: December 14 between 13.00h AEST and 15th December 12.00pmAEST, ZHR = 120;
V∞ = 35 km/s;
One of the finest, and probably the most reliable, of the major annual showers presently observable.
This is a splendid stream of often bright, medium-speed meteors, a rewarding event for all observers, whatever method they employ.
The radiant, or centre of the stream rises at 22:11hrs AEDT, transits at 02:45hrs and sets at 07:20hrs.
The Geminids (004 GEM), reaches its maximum just after full Moon. The peak period is at 2019 December 14 between 13.00h AEST and 15th December 12.00pmAEST. During this period, the moon is located in the constellation Gemini only a few degrees south of the radiant.
Assuming a transparent sky and shielding the moonlight, an observer may still see about 20+ Geminids per hour after midnight with a high radiant position.
Pollux and Castor in Gemini are just East and lower than than constellation of Orion, (or the Saucepan), low right of center.
Origin: Using data from the IRAS satellite in 1983, Simon Green and John Davies discovered asteroid 1983 TB, now called 320 Phaeton. Although this object displays no cometary activity, its orbital match with the meteors suggests its parenthood of the Geminind streams.