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
(66391) 1999 KW416.51 - 3 km13.231.1 LD27 May 201830.3 LD13.028 May 201813.0
2018 EJ421.3145 - 325 m17.422.6 LD10 Jun 20185.6 LD13.510 Jun 201813.4
(144332) 2004 DV2416.51 - 3 km19.3455.4 LD16 Sep 201821.7 LD13.116 Sep 201813.1
(4953) 1990 MU14.14 - 9 km19.31130.3 LD29 Nov 201841.7 LD14.022 Nov 201812.6
(163899) 2003 SD22017.3920 - 2060 m19.1438.2 LD22 Dec 20187.4 LD16.216 Dec 201813.1
(454177) 2013 GJ3515.92 - 4 km21.21208.7 LD14 Jan 201975.1 LD13.811 Jan 201913.8

The current positions of these NEO are plotted in the below all-sky chart:

    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 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.