IAU 21 · AVB
alpha Virginids
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.
5 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
- 28 °
- Radiant right ascension
- 179.9 °
- Radiant declination
- -7.7 °
- Right ascension drift
- Not reported
- Declination drift
- Not reported
- Geocentric speed
- 17.6 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
- Not reported
- Technique
- Not reported
- Submitted on
- SD
- Reported parent body
- 1998 SH2?
Reference: 1) ?
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
- 21.7 °
- Radiant right ascension
- 185.4 °
- Radiant declination
- 9.6 °
- Right ascension drift
- Not reported
- Declination drift
- Not reported
- Geocentric speed
- 16.8 km/s
- Semimajor axis
- 2.58 AU
- Perihelion distance
- 0.69 AU
- Eccentricity
- Not reported
- Argument of perihelion
- 240.4 °
- Ascending node
- 21.7 °
- Inclination
- 4.2 °
- Observed members
- Not reported
- Technique
- P
- Submitted on
- SD
- Reported parent body
- 1998 SH2?
Reference: 2) Southworth and Hawkins, 1963
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
- annual
- Shower group
- 00000
- Peak solar longitude
- 28.9 °
- Radiant right ascension
- 195.6 °
- Radiant declination
- -5.3 °
- Right ascension drift
- Not reported
- Declination drift
- Not reported
- Geocentric speed
- 16.6 km/s
- Semimajor axis
- 2.35 AU
- Perihelion distance
- 0.75 AU
- Eccentricity
- Not reported
- Argument of perihelion
- 247.5 °
- Ascending node
- 28.9 °
- Inclination
- 0.7 °
- Observed members
- 19
- Technique
- P
- Submitted on
- SD
- Reported parent body
- 1998 SH2?
Reference: 3) Lindblad, 1971b
Source: IAU Meteor Data Center (Jenniskens et al. 2020; Hajdukova & Rudawska)
Parameter set 3
- MDC status code
- 1
- MDC status
- single established shower, group
- Activity
- annual
- Shower group
- 00000
- Peak solar longitude
- 31.8 °
- Radiant right ascension
- 195.6 °
- Radiant declination
- 0.7 °
- Right ascension drift
- Not reported
- Declination drift
- Not reported
- Geocentric speed
- Not reported
- Semimajor axis
- 2.56 AU
- Perihelion distance
- 0.81 AU
- Eccentricity
- Not reported
- Argument of perihelion
- 239.7 °
- Ascending node
- 31.8 °
- Inclination
- 3.1 °
- Observed members
- 21
- Technique
- P
- Submitted on
- SD
- Reported parent body
- 1998 SH2?
Reference: 4) Lindblad, 1971a
Source: IAU Meteor Data Center (Jenniskens et al. 2020; Hajdukova & Rudawska)
Parameter set 4
- MDC status code
- 1
- MDC status
- single established shower, group
- Activity
- annual
- Shower group
- 00000
- Peak solar longitude
- 32 °
- Radiant right ascension
- 203.5 °
- Radiant declination
- 2.9 °
- Right ascension drift
- 0.91 °/day
- Declination drift
- -0.36 °/day
- Geocentric speed
- 18.8 km/s
- Semimajor axis
- 2.55 AU
- Perihelion distance
- 0.744 AU
- Eccentricity
- 0.716
- Argument of perihelion
- 247.9 °
- Ascending node
- 30 °
- Inclination
- 7 °
- Observed members
- 12
- Technique
- T
- Submitted on
- SD
- Reported parent body
- 1998 SH2?
Reference: 5) Jenniskens et al., 2016, Icarus, 266, 355
Source: IAU Meteor Data Center (Jenniskens et al. 2020; Hajdukova & Rudawska)