Short communication (Scientific journals)
Chi Cygnid Meteor Shower 2020
Jenniskens, P.; Hanke, T.; Heathcote, S. et al.
2020In Central Bureau Electronic Telegrams, 4837, p. 1
Editorial reviewed
 

Files


Full Text
CBET_4837.txt
Author postprint (1.77 kB)
Download

All documents in ORBi are protected by a user license.

Send to



Details



Abstract :
[en] P. Jenniskens, SETI Institute and NASA Ames Research Center, reports that the CAMS low-light video surveillance networks in Australia, South Africa, Namibia, and Chile recorded an outburst of slow meteors from a compact radiant between the constellations Delphinus and Aquila on 2020 Aug. 20/21 (cf. website URL http://cams.seti.org/FDL/ for date of Aug. 21). The shower may be ongoing. Meteors radiated from a geocentric radiant at R.A. = 304.7 +/- 1.0 deg, Decl. = +8.5 +/- 1.0 deg, with geocentric velocity 17.0 +/- 0.4 km/s during solar longitude 147.6-148.4 deg, corresponding to Aug. 20.50-21.29 The eight measured orbits have median orbital elements a = 2.95 +/- 0.17 AU, q = 0.830 +/- 0.008 AU, e = 0.716 +/- 0.017, i = 12.7 +/- 0.6 deg, Peri. = 235.3 +/- 1.3 deg, and Node = 148.0 +/- 0.3 deg (equinox J2000.0). The longitude of perihelion of the median orbit is 23.5 +/- 1.3 deg. The meteoroids appear to originate from an unknown Jupiter-family comet. The CAMS automated software identified this shower as the Chi Cygnids (IAU shower number 757), first detected by CAMS in 2015 during the period Sept. 14-25 (cf. Jenniskens, CBET 4144; Koukal et al. 2016, JIMO 44, 5). That shower had a higher inclination of i = 18.6 +/- 1.6 deg with a radiant in the constellation Cygnus, but the same longitude of perihelion of 21.5 +/- 1.9 deg. <P />CAMS Namibia is coordinated by T. Hanke (the H.E.S.S. Collaboration), CAMS Chile by S. Heathcote (AURA/Cerro Tololo) and E. Jehin (University of Liege), CAMS Australia by M. Towner (Curtin University), and CAMS South Africa by T. Cooper (Meteor Section, Astronomical Society of Southern Africa).
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Jenniskens, P.
Hanke, T.
Heathcote, S.
Jehin, Emmanuel  ;  Université de Liège - ULiège > Unités de recherche interfacultaires > Space sciences, Technologies and Astrophysics Research (STAR)
Towner, M.
Cooper, T.
Language :
English
Title :
Chi Cygnid Meteor Shower 2020
Publication date :
01 August 2020
Journal title :
Central Bureau Electronic Telegrams
Volume :
4837
Pages :
1
Peer reviewed :
Editorial reviewed
Available on ORBi :
since 24 November 2025

Statistics


Number of views
11 (0 by ULiège)
Number of downloads
2 (0 by ULiège)

Bibliography


Similar publications



Contact ORBi