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
(143649) 2003 QQ4717.4875 - 1960 m13.738.3 LD23 Sep 202138.3 LD13.723 Sep 202113.7
2019 XS23.750 - 110 m26.8135.2 LD9 Nov 20211.5 LD14.49 Nov 202113.8
(4660) Nereus18.3580 - 1295 m18.6176.3 LD11 Dec 202110.3 LD12.97 Dec 202112.5
(163899) 2003 SD22017.7780 - 1745 m18.575.1 LD17 Dec 202114.1 LD13.813 Dec 202113.6
(7482) 1994 PC116.51 - 3 km19.3433.2 LD18 Jan 20225.2 LD10.218 Jan 202210.1
(153591) 2001 SN26316.91 - 2 km19.6412.0 LD28 Feb 202239.4 LD14.05 Mar 202213.9
(138971) 2001 CB2118.4560 - 1255 m21.3514.9 LD4 Mar 202212.8 LD14.928 Feb 202214.0
(467460) 2006 JF4219.2385 - 860 m21.2722.1 LD9 May 202214.8 LD13.610 May 202213.4
(7335) 1989 JA17.5835 - 1860 m22.71245.7 LD27 May 202210.3 LD11.925 May 202211.6
(5693) 1993 EA16.71 - 3 km20.91153.3 LD28 May 202226.8 LD14.424 May 202213.7
(23606) 1996 AS118.3580 - 1295 m23.21195.5 LD18 Jul 202239.8 LD13.919 Jul 202213.7
(161989) Cacus17.2985 - 2200 m19.7407.8 LD1 Sep 202222.4 LD13.53 Sep 202213.4


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.