IAU 478 · STC

September theta Capricornids

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: -2
MDC status: shower removed from the MDC lists, but in the future, it can return to the database
Activity: annual
Shower group: 00000
Peak solar longitude: 177.7 °
Radiant right ascension: 316 °
Radiant declination: -14.1 °
Right ascension drift: Not reported
Declination drift: Not reported
Geocentric speed: 10.3 km/s
Semimajor axis: Not reported
Perihelion distance: 0.938 AU
Eccentricity: 0.606
Argument of perihelion: 213.1 °
Ascending node: 173.5 °
Inclination: 1.7 °
Observed members: 13
Technique: T
Submitted on: SD
Reported parent body: Not reported

Reference: 1) Rudawska and Jenniskens, 2014

Source: IAU Meteor Data Center (Jenniskens et al. 2020; Hajdukova & Rudawska)

Parameter set 1

MDC status code: -2
MDC status: shower removed from the MDC lists, but in the future, it can return to the database
Activity: annual
Shower group: 00000
Peak solar longitude: 170.7 °
Radiant right ascension: 315.3 °
Radiant declination: -13.3 °
Right ascension drift: Not reported
Declination drift: Not reported
Geocentric speed: 10.19 km/s
Semimajor axis: Not reported
Perihelion distance: 0.927 AU
Eccentricity: 0.561
Argument of perihelion: 218.3 °
Ascending node: 170.7 °
Inclination: 1.1 °
Observed members: 6
Technique: T
Submitted on: SD
Reported parent body: Not reported

Reference: 2) Kornos et al., 2014

Source: IAU Meteor Data Center (Jenniskens et al. 2020; Hajdukova & Rudawska)