2009 WU25
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	31 Mar 2026	30.3	3.687 AU	2.705 AU	13h25m	-03°33'	167.8°	3.3°

The interactive orbit chart above shows the body's path through the solar system and its position at the given date. Green and blue lines are shown perpendicular to the ecliptic plane: Green if the path is above the ecliptic plane, blue if it is below. (Left-click and drag to rotate the view; Right-click and drag to move the view; Use scroll wheel to zoom in our out.)

The orbital elements of 2009 WU25 are:

            e (Eccentricity)                : 0.5981225
            a (Semimajor axis)              : 2.4094719
            i (Inclination)                 : 5.43263
            Ω (Longitude of ascending node) : 60.58097
            ω (Argument of perihelion)      : 331.33807
            M (Mean anomaly)                : 102.36092
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 32.02747
            B (Latitude of perihelion)      : -2.60270
            P (Orbital period in years)     : 3.74            
        

The light curve chart below shows the estimated development of the minor planet's magnitude.

The all-sky chart below shows the path of the minor planet over the same period as the light curve. The current position is marked yellow.

The following chart shows the path of the minor planet in the next few days. The field of view is optimized for (~10x50) binoculars and finderscopes.

Ephemerides:

Date       Time       RA (2000)    DEC (2000)    delta   radius  elong  phase   PA    magn
2026-03-31 00:00 UT   13 25 15.9   -03 33 08     2.705    3.687  167.8    3.3   268   30.3 
2026-03-31 22:13 UT   13 24 26.7   -03 28 26     2.704    3.689  168.8    3.0   265   30.3 
2026-04-01 00:00 UT   13 24 22.7   -03 28 03     2.704    3.689  168.9    3.0   265   30.3 
2026-04-02 00:00 UT   13 23 29.1   -03 22 58     2.703    3.691  170.0    2.7   262   30.3 
2026-04-03 00:00 UT   13 22 35.3   -03 17 54     2.703    3.693  171.0    2.4   258   30.3 
2026-04-04 00:00 UT   13 21 41.3   -03 12 49     2.702    3.695  172.0    2.1   253   30.2 
2026-04-05 00:00 UT   13 20 47.0   -03 07 45     2.702    3.697  173.0    1.9   247   30.2 
2026-04-06 00:00 UT   13 19 52.6   -03 02 42     2.703    3.699  173.8    1.7   239   30.2 
2026-04-07 00:00 UT   13 18 58.1   -02 57 41     2.704    3.701  174.4    1.5   229   30.2 
2026-04-08 00:00 UT   13 18 03.6   -02 52 40     2.705    3.703  174.9    1.4   217   30.2 
2026-04-09 00:00 UT   13 17 09.0   -02 47 42     2.706    3.705  175.0    1.3   203   30.2 
2026-04-10 00:00 UT   13 16 14.4   -02 42 45     2.708    3.707  174.9    1.4   189   30.2 
2026-04-11 00:00 UT   13 15 19.8   -02 37 50     2.710    3.709  174.5    1.5   176   30.2 
2026-04-12 00:00 UT   13 14 25.4   -02 32 58     2.712    3.710  173.9    1.6   166   30.2 
2026-04-13 00:00 UT   13 13 31.1   -02 28 08     2.715    3.712  173.1    1.9   158   30.2 
2026-04-14 00:00 UT   13 12 37.0   -02 23 22     2.718    3.714  172.2    2.1   151   30.3 
2026-04-15 00:00 UT   13 11 43.1   -02 18 38     2.721    3.716  171.3    2.4   146   30.3 
2026-04-16 00:00 UT   13 10 49.5   -02 13 58     2.725    3.718  170.2    2.6   142   30.3 
2026-04-17 00:00 UT   13 09 56.2   -02 09 21     2.729    3.720  169.2    2.9   139   30.3 
2026-04-18 00:00 UT   13 09 03.2   -02 04 48     2.733    3.721  168.1    3.2   136   30.4 
2026-04-19 00:00 UT   13 08 10.6   -02 00 19     2.738    3.723  167.0    3.5   134   30.4 
2026-04-20 00:00 UT   13 07 18.5   -01 55 54     2.743    3.725  165.8    3.8   132   30.4 
2026-04-21 00:00 UT   13 06 26.8   -01 51 34     2.748    3.727  164.7    4.1   130   30.4 
2026-04-22 00:00 UT   13 05 35.6   -01 47 19     2.753    3.728  163.6    4.4   129   30.4 
2026-04-23 00:00 UT   13 04 44.9   -01 43 08     2.759    3.730  162.4    4.7   128   30.5 
2026-04-24 00:00 UT   13 03 54.8   -01 39 02     2.765    3.732  161.3    5.0   127   30.5 
2026-04-25 00:00 UT   13 03 05.3   -01 35 02     2.772    3.734  160.1    5.3   126   30.5 
2026-04-26 00:00 UT   13 02 16.5   -01 31 07     2.778    3.735  159.0    5.5   125   30.5 
2026-04-27 00:00 UT   13 01 28.3   -01 27 17     2.785    3.737  157.8    5.8   124   30.5 
2026-04-28 00:00 UT   13 00 40.8   -01 23 33     2.793    3.739  156.7    6.1   124   30.6 
2026-04-29 00:00 UT   12 59 54.0   -01 19 55     2.800    3.740  155.5    6.4   123   30.6 
2026-04-30 00:00 UT   12 59 07.9   -01 16 23     2.808    3.742  154.4    6.7   122   30.6 

    Terminology:
            
    delta:  distance between minor planet and earth in AU
    radius: distance between minor planet and sun in AU
    magn:   magnitude (brightness) estimate    
    ra:     right ascension in hours (24h = 360deg)
    dec:    declination in degrees
    elong:  elongation in degrees (angle sun-earth-minor planet)    
    phase:  phase angle in degrees (angle sun-minor planet-earth)        
    AU:     Astronomical Unit (mean distance between earth and sun: 149597870.7 km
    

Orbital elements provided by the MPC (Minor Planet 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.
NGC2000 dso catalog and star labels from VizieR as provided by the Strasbourg astronomical Data Center.
Tycho2 catalog from the ESO archive.