Bright NEO

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
(21374) 1997 WS2217.5860 - 1925 m13.543.0 LD21 May 202443.0 LD13.520 May 202413.4
(415029) 2011 UL2115.92 - 4 km17.7220.1 LD27 Jun 202417.3 LD11.929 Jun 202411.7
(363027) 1998 ST2719.6315 - 700 m21.7377.8 LD12 Oct 20249.5 LD13.510 Oct 202413.1
(66146) 1998 TU314.43 - 8 km25.3208.0 LD5 Nov 202434.6 LD12.030 Oct 202411.6
(36183) 1999 TX1616.31 - 3 km17.8265.0 LD13 Nov 202452.7 LD13.116 Nov 202412.7
2006 WB22.875 - 165 m24.6358.8 LD27 Nov 20242.0 LD12.626 Nov 202412.3
2020 XR19.9280 - 620 m24.1706.5 LD4 Dec 20246.6 LD13.75 Dec 202413.6
(458122) 2010 EW4517.6800 - 1785 m20.1453.3 LD19 Dec 202421.3 LD14.322 Dec 202413.7
(887) Alinda13.94 - 10 km19.11075.4 LD8 Jan 202532.3 LD9.412 Jan 20259.3


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.