IAU 136 · SLE
sigma Leonids
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.
3 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
- 8.7 °
- Radiant right ascension
- 192.6 °
- Radiant declination
- 3.1 °
- Right ascension drift
- Not reported
- Declination drift
- Not reported
- Geocentric speed
- 23 km/s
- Semimajor axis
- 2.141 AU
- Perihelion distance
- 0.561 AU
- Eccentricity
- Not reported
- Argument of perihelion
- 271.9 °
- Ascending node
- 8.7 °
- Inclination
- 6.2 °
- Observed members
- Not reported
- Technique
- P
- Submitted on
- SD
- Reported parent body
- 2002 GM5?
Reference: 1) Porubcan and Gavajdova, 1994
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
- 13.7 °
- Radiant right ascension
- 200.7 °
- Radiant declination
- -6.3 °
- Right ascension drift
- Not reported
- Declination drift
- Not reported
- Geocentric speed
- Not reported
- Semimajor axis
- 1.53 AU
- Perihelion distance
- 0.48 AU
- Eccentricity
- Not reported
- Argument of perihelion
- 286 °
- Ascending node
- 13.7 °
- Inclination
- 1.9 °
- Observed members
- Not reported
- Technique
- V
- Submitted on
- SD
- Reported parent body
- Not reported
Reference: 2) Hoffmeister, 1948
Source: IAU Meteor Data Center (Jenniskens et al. 2020; Hajdukova & Rudawska)
Parameter set 2
- MDC status code
- 0
- MDC status
- single shower, working list
- Activity
- annual
- Shower group
- 00000
- Peak solar longitude
- 23 °
- Radiant right ascension
- 199.5 °
- Radiant declination
- 3.6 °
- Right ascension drift
- -0.5 °/day
- Declination drift
- -0.6 °/day
- Geocentric speed
- 22.7 km/s
- Semimajor axis
- Not reported
- Perihelion distance
- Not reported
- Eccentricity
- Not reported
- Argument of perihelion
- Not reported
- Ascending node
- Not reported
- Inclination
- Not reported
- Observed members
- 129
- Technique
- T
- Submitted on
- SD
- Reported parent body
- Not reported
Reference: 3) Molau and Rendtel, 2009 (Tab. 6)
Source: IAU Meteor Data Center (Jenniskens et al. 2020; Hajdukova & Rudawska)