The below near-earth objects are expected to become brighter than magnitude 14.0 in the coming 12 months.
If a NEO is currently brighter than magnitude 14 it will be highlighted in yellow. For more information about one of these near-earth objects, click on its designation.
| NEO |
Today |
Closest Approach |
Brightest |
| designation |
Hₒ |
diameter est. |
magn |
delta (LD) |
date |
delta (LD) |
magn |
date |
magn |
| 2023 HO18 | 25.3 | 25 - 50 m | 16.8 | 3.2 LD | 4 Jun 2023 | 1.3 LD | 13.8 | 4 Jun 2023 | 13.6 |
| (488453) 1994 XD | 19.3 | 375 - 845 m | 15.9 | 49.4 LD | 12 Jun 2023 | 8.2 LD | 14.3 | 10 Jun 2023 | 13.5 |
| 2020 DB5 | 19.2 | 380 - 855 m | 16.0 | 30.0 LD | 15 Jun 2023 | 11.2 LD | 13.8 | 14 Jun 2023 | 13.8 |
| 2023 HO6 | 20.8 | 180 - 405 m | 18.5 | 60.3 LD | 5 Jul 2023 | 5.3 LD | 13.5 | 5 Jul 2023 | 13.4 |
| (154244) 2002 KL6 | 17.6 | 790 - 1760 m | 16.2 | 110.4 LD | 5 Aug 2023 | 24.8 LD | 14.0 | 6 Aug 2023 | 14.0 |
| (458732) 2011 MD5 | 17.9 | 690 - 1540 m | 21.2 | 502.1 LD | 22 Sep 2023 | 29.5 LD | 14.2 | 17 Sep 2023 | 13.9 |
| 1998 HH49 | 21.3 | 145 - 320 m | 23.6 | 355.8 LD | 16 Oct 2023 | 2.5 LD | 13.1 | 17 Oct 2023 | 12.5 |
| (164121) 2003 YT1 | 16.3 | 1 - 3 km | 19.4 | 519.3 LD | 3 Nov 2023 | 23.2 LD | 12.3 | 2 Nov 2023 | 12.2 |
| (1685) Toro | 14.3 | 4 - 8 km | 15.4 | 295.5 LD | 20 Jan 2024 | 51.9 LD | 13.1 | 28 Jan 2024 | 12.7 |
| (2063) Bacchus | 17.2 | 945 - 2120 m | 17.4 | 183.2 LD | 31 Mar 2024 | 46.6 LD | 14.9 | 23 Apr 2024 | 13.9 |
| (21374) 1997 WS22 | 17.5 | 850 - 1905 m | 20.8 | 796.2 LD | 21 May 2024 | 43.0 LD | 13.5 | 20 May 2024 | 13.4 |
The current positions of these NEOs are plotted in the below all-sky chart:
Terminology:
diameter est.: Estimated diameter based on Hₒ and an albedo between 0.25 and 0.05 (So sizes may be over-estimated for icy objects)
delta: Distance between dwarf planet and earth in AU
magn: Magnitude (brightness) estimate
LD: Lunar distance (~0.0257 AU)
AU: Astronomical Unit (mean distance between earth and sun: 149597870.7 km
Hₒ: Absolute magnitude (magnitude from a distance of 1 AU)
Orbital elements provided by the MPC (Minor Planet Center).
UCAC4 star catalog via VizieR as provided by the Strasbourg astronomical Data Center.
Calculations by a modified version of AAPlus, a C# implementation of the AA+ project by PJ Naughter from the algorithms presented in the book "Astronomical Algorithms" by Jean Meeus.
