Meteor shower December Monocerotids — observing times and guide
December Monocerotids visibility on 2026-12-11
December Monocerotids rise and set timetable
| Time | Elevation | |
Moonrise, 1% illuminated  | 06:52 | 9° |
| Astronomical observing session begins | 19:11 | -4° |
| Moonset | 19:17 | -2° |
| December Monocerotids radiant rise | 19:25 | |
| December Monocerotids radiant transit | 01:24 | 82° |
| Astronomical observing session ends | 04:34 | 42° |
| Twilight end (−12°) | 05:00 | 35° |
| Civil sunrise | 05:27 | 29° |
| Sunrise | 05:50 | 23° |
| December Monocerotids radiant set | 07:23 |
Track December Monocerotids position throughout the night
← 11 December 2026 →
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Moon conditions for December Monocerotids — 2026
Meteor visibility depends strongly on the Moon’s position and brightness. This chart helps identify darker observing periods.
Blue and white show night and day; red marks when the radiant is above the horizon, the white line its transit, and grey when the Moon is above the horizon. Select a date for detailed Sun and Moon times.
Observing the December Monocerotids
Radiant position:
- Right Ascension: 06h 43m 59s"
- Declination: 08° 06' 00s
Peak activity: Active from November 28 to December 21; with peak activity around December 11.
Associated parent body: December Monocerotids is produced by debris associated with C/1917 F1 (Mellish). Earth encounters this stream along its orbit.
December Monocerotids — Observation history
Previous activity records show the reported start, peak and end dates. Exact dates may shift slightly from year to year.
| Year | Start date | Peak date | End date |
|---|---|---|---|
| 2006 | - | December 13 | - |
| 2003 | - | December 13 | - |
| 2008 | December 3 | December 13 | December 15 |
| 2009 | November 27 | December 9 | December 21 |
| 2010 | December 9 | December 13 | December 18 |
| 2015 | November 28 | December 13 | December 27 |
| 2023 | November 28 | December 11 | December 21 |
Use these dates as a historical guide and check current predictions near the event.
Data Credits
Meteor data are provided by the International Astronomical Union Meteor Data Center . We thank the observers and researchers who contribute these records.