2021 PH27 is a near-Earth asteroid of the Atira group. It was discovered by Scott Sheppard using the Dark Energy Survey's DECam imager at NOIRLab's Cerro...

movements of Vulcan Tyche (hypothetical planet) Vulcan (Star Trek) Vulcanoid 2021 PH27, an Atira asteroid with an intra-Mercurian perihelion, the smallest semi-major...

to produce substantial evidence on vulcanoids. On August 13, 2021, an asteroid, 2021 PH27, was discovered with a perihelion well within the orbit of Mercury...

2019 LF6 is a near-Earth object of the Atira group. After 2021 PH27, it has the second-smallest semi-major axis among the known asteroids (0.555 AU),...

(2018) S/2018 J 4 (2018) S/2021 J 1 (2021) S/2021 J 2 (2021) S/2021 J 3 (2021) S/2021 J 4 (2021) S/2021 J 5 (2021) S/2021 J 6 (2021) S/2022 J 1 (2022) S/2022...

significant events in science that have occurred in the first quarter of 2021. 1 January – Beginning of the implementation of Plan S, an initiative for...

S. Sheppard MPC · JPL 2021 PB2 0.610 0.7174 0.825 0.1501 24.83 222 3392 18.8 620 Zwicky Transient Facility MPC · JPL 2021 PH27 0.133 0.4617 0.790 0.7117...

2021 DW1 is a small Apollo near-Earth asteroid discovered on 16 February 2021 by the Pan-STARRS 1 survey at Haleakala Observatory, Hawaii. On 4 March...

Earth during 2021. "2021 SG". Minor Planet Center. International Astronomical Union. Retrieved 11 December 2021. "MPEC 2021-S24 : 2021 SG". Minor Planet...

significant scientific events that occurred or were scheduled to occur in 2021. 1 July Construction begins on the Square Kilometre Array, with first light...