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...
16 KB (1,303 words) - 02:44, 3 July 2024
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...
22 KB (2,536 words) - 14:04, 1 November 2024
movements of Vulcan Tyche (hypothetical planet) Vulcan (Star Trek) Vulcanoid 2021 PH27, an Atira asteroid with an intra-Mercurian perihelion, the smallest semi-major...
23 KB (2,933 words) - 02:57, 16 September 2024
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),...
6 KB (399 words) - 01:34, 2 September 2024
significant events in science that have occurred in the second quarter of 2021. 2 April – Scientists report that the event that caused the mass-extinction...
126 KB (11,867 words) - 18:51, 28 August 2024
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...
139 KB (13,101 words) - 00:50, 25 September 2024
significant scientific events that occurred or were scheduled to occur in 2021. 1 July Construction begins on the Square Kilometre Array, with first light...
299 KB (39,012 words) - 16:36, 5 October 2024
Scott S. Sheppard (category Articles lacking reliable references from August 2021)
(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...
16 KB (1,331 words) - 05:18, 4 April 2024
Notable discoveries from this survey include the Atira asteroids 2021 LJ4 and 2021 PH27, the latter of which holds the record for the shortest orbital period...
16 KB (1,001 words) - 00:57, 6 October 2024
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...
25 KB (1,799 words) - 15:51, 3 November 2024
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...
6 KB (312 words) - 03:57, 7 October 2024
Earth during 2021. "2021 SG". Minor Planet Center. International Astronomical Union. Retrieved 11 December 2021. "MPEC 2021-S24 : 2021 SG". Minor Planet...
5 KB (239 words) - 04:04, 7 October 2024
2021 AV7 is a near-Earth asteroid of the Apollo group, discovered by astronomers Alain Maury and G. Attard at San Pedro de Atacama, Chile on 15 January...
9 KB (748 words) - 03:56, 7 October 2024
(231937) 2001 FO32 (category Use dmy dates from September 2021)
Mexico on 23 March 2001. The asteroid safely passed by Earth on 21 March 2021 16:03 UTC from a closest approach distance of 0.0135 AU (2.02 million km;...
15 KB (1,373 words) - 23:16, 25 January 2024
(679648) 2019 XS (category Use dmy dates from October 2021)
1.493 lunar distances (574,000 km; 357,000 mi) from Earth on 9 November 2021 at 03:48 UTC, after which observations were checked by the International...
8 KB (586 words) - 16:20, 23 April 2024
Postcodes in the United Kingdom (category Articles needing additional references from January 2021)
numbered district is PH50 but, within the range of PH1-PH50, the numbers PH27-PH29 and PH45-PH48 are not allocated, so as to maintain a distinct geographical...
73 KB (7,630 words) - 08:28, 28 October 2024