IAU 328 · ALA
alpha Lacertids
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
- 1
- MDC status
- single established shower, group
- Activity
- annual
- Shower group
- 00000
- Peak solar longitude
- 105.5 °
- Radiant right ascension
- 343 °
- Radiant declination
- 49.6 °
- Right ascension drift
- 0.7 °/day
- Declination drift
- 0.37 °/day
- Geocentric speed
- 38.9 km/s
- Semimajor axis
- 1.089 AU
- Perihelion distance
- 1.002 AU
- Eccentricity
- 0.0799
- Argument of perihelion
- 217.1 °
- Ascending node
- 105.3 °
- Inclination
- 81.1 °
- Observed members
- 66
- Technique
- R
- Submitted on
- SD
- Reported parent body
- Not reported
Reference: 1) Brown et al., 2008
Source: IAU Meteor Data Center (Jenniskens et al. 2020; Hajdukova & Rudawska)
Parameter set 1
- MDC status code
- 1
- MDC status
- single established shower, group
- Activity
- annual
- Shower group
- 00000
- Peak solar longitude
- 106 °
- Radiant right ascension
- 349.4 °
- Radiant declination
- 54.4 °
- Right ascension drift
- 0.82 °/day
- Declination drift
- 0.39 °/day
- Geocentric speed
- 37.4 km/s
- Semimajor axis
- 1.07 AU
- Perihelion distance
- 0.976 AU
- Eccentricity
- 0.088
- Argument of perihelion
- 122.2 °
- Ascending node
- 114.5 °
- Inclination
- 77.7 °
- Observed members
- 2
- 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)