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
designation Hₒ diameter est. magn delta (AU) delta (LD) date magn delta (AU) delta (LD) delta (km)
(3122) Florence 14.14 - 9 km15.10.565 AU219.9 LD1 Sep 20178.80.047 AU18.4 LD7,086,512 km
(171576) 1999 VP1118.5530 - 1185 m21.21.873 AU728.8 LD22 Oct 201713.40.015 AU5.8 LD2,239,857 km
(66146) 1998 TU3 14.63 - 7 km16.30.550 AU213.9 LD31 Oct 201712.30.131 AU51.1 LD19,658,703 km
(163696) 2003 EB5016.51 - 3 km18.60.842 AU327.8 LD21 Nov 201713.50.094 AU36.6 LD14,085,216 km
(3200) Phaethon 14.63 - 7 km19.73.195 AU1243.3 LD16 Dec 201711.10.069 AU26.7 LD10,274,843 km
(276033) 2002 AJ12918.7485 - 1080 m23.82.721 AU1058.9 LD4 Feb 201813.20.029 AU11.4 LD4,390,209 km
(3752) Camillo 15.32 - 5 km18.51.297 AU504.7 LD20 Feb 201813.20.138 AU53.5 LD20,572,937 km
(1981) Midas 15.22 - 5 km20.93.629 AU1412.2 LD21 Mar 201812.70.090 AU35.0 LD13,458,274 km
(444193) 2005 SE7118.2610 - 1360 m19.30.545 AU212.2 LD27 Apr 201813.70.062 AU24.0 LD9,211,537 km
(194126) 2001 SG27617.7765 - 1715 m21.92.617 AU1018.1 LD27 Apr 201813.20.084 AU32.7 LD12,560,251 km
(388945) 2008 TZ320.4220 - 495 m24.93.217 AU1251.6 LD9 May 201813.40.017 AU6.5 LD2,514,089 km


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.