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
(23606) 1996 AS118.3580 - 1300 m15.754.4 LD18 Jul 202239.8 LD13.819 Jul 202213.6
(2100) Ra-Shalom16.41 - 3 km17.4144.4 LD31 Aug 202272.9 LD14.03 Sep 202214.0
(161989) Cacus17.4900 - 2015 m18.7173.1 LD1 Sep 202222.4 LD13.73 Sep 202213.6
(85713) 1998 SS4915.62 - 4 km20.5930.3 LD21 Nov 202255.6 LD14.216 Nov 202213.9
2005 LW321.6125 - 280 m23.8339.8 LD23 Nov 20223.1 LD14.124 Nov 202213.5
2015 RN3523.165 - 145 m24.4259.3 LD15 Dec 20221.8 LD13.716 Dec 202213.4
2018 YK222.875 - 165 m24.9383.1 LD22 Dec 20222.1 LD14.422 Dec 202213.9
2010 XC1521.4140 - 310 m22.8580.1 LD27 Dec 20222.0 LD14.127 Dec 202213.4
(199145) 2005 YY12818.2605 - 1350 m23.51437.2 LD16 Feb 202311.9 LD13.814 Feb 202313.1
(488453) 1994 XD19.1400 - 900 m25.61490.3 LD11 Jun 20238.4 LD14.210 Jun 202313.4
2020 DB519.3365 - 820 m24.91507.3 LD14 Jun 202310.7 LD13.814 Jun 202313.8


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.