Monocerotis Monoceros was devised in the 17th century by Dutch astronomer Petrus Plancius. Messier Objects M50 is an open cluster visible through binoculars. NGC 2246 is the spectacular Rosette Nebula . The meteors in the Alpha Monocerotids are among the fastest colliding with the Earth and some can be very bright.
Activity is quite variable, with outbursts occurring every ten years.
The radiant lies near the star Procyon in Canis Minor .