Minor Planets; Asteroids; Light Curves; Photometry; Periods
Abstract :
[en] We observed two near-Earth asteroids (NEAs) with TRAPPIST-North and TRAPPIST-South from October 2024 to January 2025. We obtained their lightcurves and estimated their synodic rotational periods and amplitudes, which have not been previously reported ─ 2020 WG: (0.5927 ± 0.0003 h) and (0.36 ± 0.02 mag); (458122) 2010 EW45: (2.4880 ± 0.0008 h) and (0.11 ± 0.01 mag). We also performed calculations of their color indices B-V, V-R and V-I, and according to them, classified the asteroids into spectral types ─ 2020 WG: S-type, 2010 EW45: Q-type. The acquired data have been submitted to the ALCDEF database.
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Apostolova, Brankica
Miftah, Mohamed Amine ; Université de Liège - ULiège > Unités de recherche interfacultaires > Space sciences, Technologies and Astrophysics Research (STAR)
Jehin, Emmanuel ; Université de Liège - ULiège > Unités de recherche interfacultaires > Space sciences, Technologies and Astrophysics Research (STAR)
Petrescu, Elisabeta ; Université de Liège - ULiège > Unités de recherche interfacultaires > Space sciences, Technologies and Astrophysics Research (STAR)
Ferrais, Marin ; Université de Liège - ULiège > Département d'astrophysique, géophysique et océanographie (AGO) > COMets METeors and Asteroids (COMETA)
Jabiri, Abdelhadi
Benkhaldoun, Zouhair
Language :
English
Title :
Lightcurves, Rotational Periods and Spectral Classification of Two Near-Earth Asteroids Observed With Trappist: 2020 WG and (458122) 2010 EE45
Publication date :
01 October 2025
Journal title :
Minor Planet Bulletin
ISSN :
1052-8091
Publisher :
Minor Planets Section of the Association of Lunar and Planetary Observers, Austin, Us tx
