Physical and orbital properties of eta-Virginids

We studied meteors from the eta-Virginid meteor shower that were observed by AMOS all-sky camera network during the increase of activity in the years 2017, 2021 and 2025. Our sample consisted of 28 meteors that could be associated with the eta-Virginid meteoroid stream and their orbital parameters are presented. We describe our modifications to a model of meteoroid erosion previously used by other authors, which was successfully applied to model the luminous trajectory of 19 eta-Virginids. The resulting bulk density was 1672 ± 587 k g m − 3 which clearly indicates that the eta-Virginid stream has asteroidal origin, and the meteoroids possibly have carbonaceous chondritic composition. We also aimed to find members of possible southern branch but we did not conclusively find any even after a broader search. • We reviewed archival data from AMOS network of all-sky cameras from years 2017, 2021 and 2025 to search for meteors from eta-Virginids meteor shower and found 28 members that can be linked to the shower. • Model for simulating luminous trajectory of meteors based on model of meteoroid erosion (Borovička et al., 2007) is presented, and successfully applied to our observations. • We aimed to confirm suggestions of other authors that eta-Virginids are of asteroidal origin, and we did so by determining that their mean bulk density is 1672 k g m − 3 , which hints at carbonaceous chondritic material. • We also tried to find a possible southern branch of eta-Virginids in our observations but we only found one possible candidate that was on a rather different orbit.