IAU 156 · SMA
Southern Daytime May 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.
3 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
- 52.7 °
- Radiant right ascension
- 33.7 °
- Radiant declination
- 9.2 °
- Right ascension drift
- Not reported
- Declination drift
- Not reported
- Geocentric speed
- 28.9 km/s
- Semimajor axis
- 1.68 AU
- Perihelion distance
- 0.27 AU
- Eccentricity
- Not reported
- Argument of perihelion
- 233 °
- Ascending node
- 232.7 °
- Inclination
- 5 °
- Observed members
- 43
- 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
- 1
- MDC status
- single established shower, group
- Activity
- 1961
- Shower group
- 00000
- Peak solar longitude
- 62.6 °
- Radiant right ascension
- 48.5 °
- Radiant declination
- 8.3 °
- Right ascension drift
- 1.9 °/day
- Declination drift
- -1.2 °/day
- Geocentric speed
- 31.8 km/s
- Semimajor axis
- 3.23 AU
- Perihelion distance
- Not reported
- Eccentricity
- 0.89
- Argument of perihelion
- 243.7 °
- Ascending node
- 242.6 °
- Inclination
- 12.5 °
- Observed members
- 6
- Technique
- R
- Submitted on
- SD
- Reported parent body
- Not reported
Reference: 2) Nilson, 1964 (Tab. 6, Gr. 61.5.9)
Source: IAU Meteor Data Center (Jenniskens et al. 2020; Hajdukova & Rudawska)
Parameter set 2
- MDC status code
- 1
- MDC status
- single established shower, group
- Activity
- 2002/06
- Shower group
- 00000
- Peak solar longitude
- 47.1 °
- Radiant right ascension
- 28.4 °
- Radiant declination
- 7.7 °
- Right ascension drift
- 0.92 °/day
- Declination drift
- 0.32 °/day
- Geocentric speed
- 28.3 km/s
- Semimajor axis
- 1.51 AU
- Perihelion distance
- 0.272 AU
- Eccentricity
- 0.8204
- Argument of perihelion
- 231.7 °
- Ascending node
- 227.1 °
- Inclination
- 5.1 °
- Observed members
- 583
- Technique
- R
- Submitted on
- SD
- Reported parent body
- Not reported
Reference: 3) Brown et al., 2008
Source: IAU Meteor Data Center (Jenniskens et al. 2020; Hajdukova & Rudawska)