Category
page 1Discoveries by ATLAS
3I/ATLAS
3I/ATLAS, also known as C/2025 N1 (ATLAS) and previously as A11pl3Z, is an interstellar comet discovered on 1 July 2025 by the Asteroid Terrestrial-impact Last Alert System (ATLAS) station. The comet follows an unbound, hyperbolic trajectory past the Sun, and passed by Earth at 1.8 AU, posing no threat. The prefix "3I" designates it as the third confirmed interstellar object passing through the Solar System, after 1I/Oumuamua and 2I/Borisov.
C/2023 A3 (Tsuchinshan–ATLAS)
long period comet
Q131923081
near-Earth asteroid
C/2019 Y4 (ATLAS)
comet
C/2024 G3 (ATLAS)
long-period sungrazing comet which disintegrated after perihelion in 2025
C/2024 S1 (ATLAS)
sungrazing comet
SN 2018cow
powerful supernova which appeared to originate in galaxy CGCG 137-068 in 2018
C/2025 K1 (ATLAS)
parabolic comet
2020 VT4
near-Earth asteroid
P/2019 LD2 (ATLAS)
Jupiter-family comet
2019 MO
small asteroid which entered Earth's atmosphere in June 2019
2018 AH
asteroid
(809875) 2020 BX12
Binary near-Earth asteroid