IAU 11 · EVI
eta 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.
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
- 354 °
- Radiant right ascension
- 182.1 °
- Radiant declination
- 2.6 °
- Right ascension drift
- 1 °/day
- Declination drift
- -0.37 °/day
- Geocentric speed
- 29.2 km/s
- Semimajor axis
- 2.562 AU
- Perihelion distance
- 0.382 AU
- Eccentricity
- Not reported
- Argument of perihelion
- 349.1 °
- Ascending node
- 280.5 °
- Inclination
- 3.5 °
- Observed members
- 7
- Technique
- Not reported
- Submitted on
- SD
- Reported parent body
- D/1766 G1 (Helfenzrieder)?
Reference: 1) Jenniskens, 2006
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
- 354 °
- Radiant right ascension
- 174.3 °
- Radiant declination
- 4.7 °
- Right ascension drift
- 0.9 °/day
- Declination drift
- 0.31 °/day
- Geocentric speed
- 34.2 km/s
- Semimajor axis
- 2.637 AU
- Perihelion distance
- 0.234 AU
- Eccentricity
- Not reported
- Argument of perihelion
- 308 °
- Ascending node
- 334.5 °
- Inclination
- 3.5 °
- Observed members
- 4
- Technique
- P
- Submitted on
- SD
- Reported parent body
- D/1766 G1 (Helfenzrieder)?
Reference: 2) Lindblad, 1971
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
- 357 °
- Radiant right ascension
- 184.8 °
- Radiant declination
- 3.9 °
- Right ascension drift
- 0.92 °/day
- Declination drift
- -0.4 °/day
- Geocentric speed
- 26.6 km/s
- Semimajor axis
- 2.47 AU
- Perihelion distance
- 0.46 AU
- Eccentricity
- 0.812
- Argument of perihelion
- 281 °
- Ascending node
- 355.7 °
- Inclination
- 5.4 °
- Observed members
- 57
- Technique
- T
- Submitted on
- SD
- Reported parent body
- D/1766 G1 (Helfenzrieder)?
Reference: 3) Jenniskens et al., 2016, Icarus, 266, 331
Source: IAU Meteor Data Center (Jenniskens et al. 2020; Hajdukova & Rudawska)