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
(4953) 1990 MU14.14 - 9 km16.5372.3 LD29 Nov 201841.7 LD14.022 Nov 201812.6
(163899) 2003 SD22017.3920 - 2060 m18.082.6 LD22 Dec 20187.4 LD16.216 Dec 201813.1
(454177) 2013 GJ3515.92 - 4 km19.7632.7 LD14 Jan 201975.1 LD13.811 Jan 201913.8
(66391) 1999 KW416.51 - 3 km15.8481.5 LD25 May 201913.9 LD12.827 May 201912.6
(214088) 2004 JN1315.32 - 5 km21.81677.3 LD26 Jul 201974.3 LD14.218 Jul 201914.0
(1620) Geographos15.62 - 5 km19.1583.2 LD31 Aug 201953.5 LD14.27 Sep 201913.9
(237805) 2002 CF2617.3920 - 2060 m21.91211.1 LD5 Sep 201939.4 LD13.84 Sep 201913.8


The current positions of these NEO 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 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.