IAU 237 · SSA
sigma Arietids
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
- 202 °
- Radiant right ascension
- 44.7 °
- Radiant declination
- 14.2 °
- Right ascension drift
- Not reported
- Declination drift
- Not reported
- Geocentric speed
- 40.5 km/s
- Semimajor axis
- 4.46 AU
- Perihelion distance
- 0.11 AU
- Eccentricity
- Not reported
- Argument of perihelion
- 145 °
- Ascending node
- 22.7 °
- Inclination
- 7 °
- Observed members
- 28
- Technique
- R
- Submitted on
- SD
- Reported parent body
- Not reported
Reference: 1) Kashcheyev and Lebedinets, 1967
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
- 206 °
- Radiant right ascension
- 50.7 °
- Radiant declination
- 22.1 °
- Right ascension drift
- 1.1 °/day
- Declination drift
- 0 °/day
- Geocentric speed
- 45.5 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
- 475
- Technique
- T
- Submitted on
- SD
- Reported parent body
- Not reported
Reference: 2) Molau and Rendtel, 2009
Source: IAU Meteor Data Center (Jenniskens et al. 2020; Hajdukova & Rudawska)