J/A+A/695/A83ivo://CDS.VizieR/J/A+A/695/A83doi:10.26093/cds/vizier/bc-nq/lidCDSBorovicka J.Spurny P.Kotkova L.Molau S.Tomko D.Weiland T.2026-07-03T06:36:46Z2025-03-11T09:31:41ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.frsolar-systemasteroidsMeteoroid streams can be complex structures shaped by the processes of their formation and subsequent orbital evolution. The first step of their understanding is mapping their current stage. We used precise data from the European Fireball Network to disentangle the situation with meteor showers active in August and having radiants in the Cygnus-Draco area. In total, 179 fireballs observed between 2016-2024 were analyzed. We confirmed that two shower systems, kappa Cygnids and August Draconids, are present. The meteoroid swarm producing kappa Cygnids is locked in the 5:3 main motion resonance with Jupiter with orbital period 7.12 years and has a limited extent of less than 90 degrees in mean anomaly. The shower is therefore markedly active only once or twice during each seven-year period. The orbits have wide range of inclinations, 28-44 degrees. There is a correlation between inclination, perihelion distance, and argument of perihelion. The radiant area is almost 30 degrees long in declination. August Draconids have even more extended radiant and can be divided into three branches depending on the position of the perihelion relative to the ecliptic plane. Neither of the showers can be described by a single set of orbital elements. We provide sets of representative orbits and identifications with showers previously reported in the literature. Physical properties of meteoroids and possible parent bodies are also discussed.2025A&A...695A..83Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/695/A83CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/667/A157 : 824 fireballs observed in 2017-2018 (Borovicka+, 2022)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/695/A83https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/695/A83http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/695/A83https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/695/A83https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/695/A83http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/695/A83GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/695/A83/fireball (Fireball data)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/695/A83/fireball?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/695/A83/fireball?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/695/A83/fireball?GETtext/xml+votable180.050000true278.16847.1670.0055555555555555565/3837 6/9586 9593 9663 9724-9725 9935 9982 10035 10060 10148 10174 10205 10218 10225 10230-10232 10238 11382 11524 11541 11543 11548 11550 11567 11569 11579 11584 11591 11594 11601 11607 11616 11619 11629 11636-11637 11667-11668 11697 11722 11735 11738 11765 12106 14700 14783 14794 14797 14877 14894 14901 14903 14906 14917 14941 14946 14960 14969 14972 14991 15001 15005 15046-15047 15053 15060-15061 15067 15071 15077 15084-15085 15095 15098 15119 15130 15133-15134 15138 15140 15142 15147-15148 15151-15152 15156-15157 15160 15165 15193 15195 15198 15201-15202 15204 15210 15212 15214 15218 15222 15229-15230 15233-15235 15241-15242 15244-15246 15249-15250 15257 15260-15261 15273 15275 15280 15284-15286 15290 15308-15309 15313 15326 15331 15334 15337 15345 15347 15353-15354 15548 15873 15904 15907 15910 15913 15917 15923 15944 16000 16005 16021 16041 16043-16044 16057 16109 16130 16163 16264https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/695/A83?format=asciidefaultJ/A+A/695/A83/fireballFireball dataEccEccentricitysrc.orbital.eccentricityfloatObjectAsteroid with similar orbitmeta.idcharTimeDate (YYYY/MM/DDThh:mm:ss.s)stime.epochnullablerecnoRecord number assigned by the VizieR team. 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