IAU 429 · ACB
alpha Coronae Borealids
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
- 0
- MDC status
- single shower, working list
- Activity
- annual
- Shower group
- 00000
- Peak solar longitude
- 309.89 °
- Radiant right ascension
- 233.282 °
- Radiant declination
- 27.007 °
- Right ascension drift
- Not reported
- Declination drift
- Not reported
- Geocentric speed
- 58 km/s
- Semimajor axis
- Not reported
- Perihelion distance
- 0.98151 AU
- Eccentricity
- 0.9895
- Argument of perihelion
- 175.349 °
- Ascending node
- 309.89 °
- Inclination
- 105.404 °
- Observed members
- 15
- Technique
- T
- Submitted on
- SD
- Reported parent body
- Unknown
Reference: 1) Greaves, 2012
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
- 2013
- Shower group
- 00000
- Peak solar longitude
- 308 °
- Radiant right ascension
- 231.5 °
- Radiant declination
- 26 °
- Right ascension drift
- 1.8 °/day
- Declination drift
- -1 °/day
- Geocentric speed
- 57.8 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
- 500
- Technique
- T
- Submitted on
- SD
- Reported parent body
- Not reported
Reference: 2) Molau et al., 2013
Source: IAU Meteor Data Center (Jenniskens et al. 2020; Hajdukova & Rudawska)
Parameter set 2
- MDC status code
- 0
- MDC status
- single shower, working list
- Activity
- annual
- Shower group
- 00000
- Peak solar longitude
- 308 °
- Radiant right ascension
- 231.7 °
- Radiant declination
- 27.7 °
- Right ascension drift
- 0.75 °/day
- Declination drift
- -0.24 °/day
- Geocentric speed
- 57 km/s
- Semimajor axis
- 16.85 AU
- Perihelion distance
- 0.984 AU
- Eccentricity
- 0.943
- Argument of perihelion
- 176.3 °
- Ascending node
- 307.8 °
- Inclination
- 104.1 °
- Observed members
- 11
- Technique
- T
- Submitted on
- SD
- Reported parent body
- Not reported
Reference: 3) Jenniskens et al., 2016, Icarus, 266, 355
Source: IAU Meteor Data Center (Jenniskens et al. 2020; Hajdukova & Rudawska)