← Meteor showers
IAU 252 · ALY
alpha Lyncids
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
- 268.9 °
- Radiant right ascension
- 138.8 °
- Radiant declination
- 43.8 °
- Right ascension drift
- Not reported
- Declination drift
- Not reported
- Geocentric speed
- 50.4 km/s
- Semimajor axis
- 25.4 AU
- Perihelion distance
- 0.281 AU
- Eccentricity
- Not reported
- Argument of perihelion
- 295.9 °
- Ascending node
- 268.8 °
- Inclination
- 84.4 °
- Observed members
- Not reported
- Technique
- T
- Submitted on
- SD
- Reported parent body
- Not reported
Reference: 1) ? PJ
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
- 272 °
- Radiant right ascension
- 140.4 °
- Radiant declination
- 39.8 °
- Right ascension drift
- 1.13 °/day
- Declination drift
- -0.31 °/day
- Geocentric speed
- 49.5 km/s
- Semimajor axis
- 6.78 AU
- Perihelion distance
- 0.213 AU
- Eccentricity
- 0.969
- Argument of perihelion
- 306.4 °
- Ascending node
- 272.2 °
- Inclination
- 84 °
- Observed members
- 3
- 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)