December Phi Cassiopeiids

December Phi Cassiopeiids (DPC)
Discovery date	2011
Parent body	Biela's Comet
Radiant
Constellation	Cassiopeia (near Phi Cassiopeiae)
Right ascension	1h 19m
Declination	+58° 17′
Properties
Occurs during	28 November – 10 December [1]
Date of peak	2 December
Velocity	17 km/s
Zenithal hourly rate	200 [2]
See also: List of meteor showers

The December Phi Cassiopeiids are a meteor shower beginning on the 28th of November and lasting until the 10th of December. It is visible from the Northern Hemisphere.

It originated with the 1649 perihelion of Biela's Comet. Activity is centered in eastern Cassiopeia, about one degree away from the star Ruchbach. ^[3] It one of multiple meteor showers associated with Biela's Comet, the most famous of them being the Andromedids. ^[4]

References

1. "Meteor Activity Outlook for 2-8 December 2023 | IMO". 4 December 2023.
2. "Mysterious Meteor Shower Could Light up Skies Tonight in Rare Outburst". Forbes .
3. "Meteor Activity Outlook for December 7-13, 2024".
4. Jenniskens, P.; Howell, A.; Johannink, C.; Breukers, M.; Moskovitz, N.; Juneau, L. (2025). "Andromedid Meteor Shower Outburst". Central Bureau Electronic Telegrams (5500): 1. Bibcode:2025CBET.5500....1J.