IAU 498 · DMH
December mu Hydrids
Measurements from the IAU Meteor Data Center. Each parameter set describes an observation campaign; values and proposed parent bodies may differ between sets.
An activity peak is expressed as solar longitude, not a guaranteed calendar date or observing forecast. Radiant coordinates and orbital elements are reported as supplied by the source. Missing values are not reported; these data do not predict an hourly meteor rate.
2 parameter sets returned for this shower. List-page filters do not hide sets here.
Parameter set 0
- MDC status code
- 0
- MDC status
- single shower, working list
- Activity
- annual
- Shower group
- 00000
- Peak solar longitude
- 264.8 °
- Radiant right ascension
- 152.7 °
- Radiant declination
- -23.8 °
- Right ascension drift
- Not reported
- Declination drift
- Not reported
- Geocentric speed
- 63.8 km/s
- Semimajor axis
- Not reported
- Perihelion distance
- 0.93 AU
- Eccentricity
- 0.983
- Argument of perihelion
- 27.2 °
- Ascending node
- 84.8 °
- Inclination
- 123.5 °
- Observed members
- 7
- Technique
- T
- Submitted on
- SD
- Reported parent body
- Not reported
Reference: 1) Rudawska and Jenniskens, 2014
Source: IAU Meteor Data Center (Jenniskens et al. 2020; Hajdukova & Rudawska)
Parameter set 1
- MDC status code
- 0
- MDC status
- single shower, working list
- Activity
- annual
- Shower group
- 00000
- Peak solar longitude
- 269 °
- Radiant right ascension
- 156.8 °
- Radiant declination
- -25.9 °
- Right ascension drift
- 0.83 °/day
- Declination drift
- -0.36 °/day
- Geocentric speed
- 63.7 km/s
- Semimajor axis
- 26.5 AU
- Perihelion distance
- 0.937 AU
- Eccentricity
- 0.964
- Argument of perihelion
- 25.1 °
- Ascending node
- 88.8 °
- Inclination
- 123.1 °
- Observed members
- 24
- Technique
- T
- Submitted on
- SD
- Reported parent body
- Not reported
Reference: 2) Jenniskens et al., 2016, Icarus, 266, 331
Source: IAU Meteor Data Center (Jenniskens et al. 2020; Hajdukova & Rudawska)