Monocerotids (MON)

Active: November 27 — December 17; Maximum: December 8 (λ⊙ = 257°); ZHR = 2;
Radiant: α = 100°, δ = +8°; Radiant drift: see Table 6;
V∞ = 42 km/s; r = 3.0;
TFC: α = 88°, δ = +20° and α = 135°, δ = +48° (β > 40° N);
or α = 120°, δ = −3° and α = 84°, δ = +10° (β < 40° N).

This very minor shower’s details, including its radiant position, are rather uncertain. Telescopic results have suggested a later maximum, around λ⊙ ∼ 264° (December 15), from a radiant at α = 117°, δ = +20°, for instance. December’s waning crescent Moon leaves plenty of dark-sky observing time for checking on the shower, as the radiant area is available virtually all night for much of the globe, culminating at about 1h30m local time.