IAU 523 · AGC
August gamma Cepheids
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
- 155.1 °
- Radiant right ascension
- 358 °
- Radiant declination
- 76.4 °
- Right ascension drift
- Not reported
- Declination drift
- Not reported
- Geocentric speed
- 44 km/s
- Semimajor axis
- 9 AU
- Perihelion distance
- 1.005 AU
- Eccentricity
- 0.892
- Argument of perihelion
- 188 °
- Ascending node
- 155 °
- Inclination
- 76 °
- Observed members
- 44
- Technique
- T
- Submitted on
- SD
- Reported parent body
- Not reported
Reference: 1) Andreic et al., 2013
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
- 156 °
- Radiant right ascension
- 354.2 °
- Radiant declination
- 76.6 °
- Right ascension drift
- 0.76 °/day
- Declination drift
- 0.4 °/day
- Geocentric speed
- 43.9 km/s
- Semimajor axis
- 11.42 AU
- Perihelion distance
- 1.005 AU
- Eccentricity
- 0.913
- Argument of perihelion
- 188.1 °
- Ascending node
- 156.1 °
- Inclination
- 75.6 °
- Observed members
- 15
- Technique
- T
- Submitted on
- SD
- Reported parent body
- Not reported
Reference: 2) Jenniskens et al., 2016, Icarus, 266, 355
Source: IAU Meteor Data Center (Jenniskens et al. 2020; Hajdukova & Rudawska)