2009 WU25
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	11 May 2026	30.8	3.759 AU	2.912 AU	12h51m	-00°44'	142.0°	9.5°

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
2026-05-11 00:00 UT   12 51 37.4   +00 44 23     2.912    3.759  142.0    9.5   119   30.8 
2026-05-11 01:06 UT   12 51 35.7   +00 44 17     2.912    3.759  141.9    9.5   119   30.8 
2026-05-12 00:00 UT   12 51 02.0   +00 42 09     2.922    3.760  140.9    9.8   118   30.8 
2026-05-13 00:00 UT   12 50 27.6   +00 40 02     2.934    3.762  139.8   10.0   118   30.9 
2026-05-14 00:00 UT   12 49 54.3   +00 38 01     2.945    3.763  138.7   10.2   118   30.9 
2026-05-15 00:00 UT   12 49 21.9   +00 36 08     2.956    3.765  137.6   10.4   118   30.9 
2026-05-16 00:00 UT   12 48 50.6   +00 34 21     2.968    3.766  136.5   10.6   117   30.9 
2026-05-17 00:00 UT   12 48 20.4   +00 32 42     2.980    3.768  135.4   10.9   117   30.9 
2026-05-18 00:00 UT   12 47 51.2   +00 31 10     2.992    3.769  134.3   11.1   117   31.0 
2026-05-19 00:00 UT   12 47 23.1   +00 29 45     3.005    3.770  133.3   11.3   117   31.0 
2026-05-20 00:00 UT   12 46 56.1   +00 28 28     3.017    3.772  132.2   11.5   117   31.0 
2026-05-21 00:00 UT   12 46 30.2   +00 27 17     3.030    3.773  131.1   11.7   117   31.0 
2026-05-22 00:00 UT   12 46 05.3   +00 26 14     3.043    3.775  130.1   11.8   116   31.0 
2026-05-23 00:00 UT   12 45 41.6   +00 25 18     3.056    3.776  129.0   12.0   116   31.0 
2026-05-24 00:00 UT   12 45 18.9   +00 24 28     3.069    3.777  128.0   12.2   116   31.1 
2026-05-25 00:00 UT   12 44 57.3   +00 23 46     3.082    3.779  126.9   12.4   116   31.1 
2026-05-26 00:00 UT   12 44 36.8   +00 23 11     3.096    3.780  125.9   12.5   116   31.1 
2026-05-27 00:00 UT   12 44 17.4   +00 22 43     3.110    3.781  124.9   12.7   116   31.1 
2026-05-28 00:00 UT   12 43 59.1   +00 22 21     3.124    3.783  123.8   12.9   116   31.1 
2026-05-29 00:00 UT   12 43 41.9   +00 22 07     3.138    3.784  122.8   13.0   116   31.1 
2026-05-30 00:00 UT   12 43 25.8   +00 21 59     3.152    3.785  121.8   13.2   116   31.2 
2026-05-31 00:00 UT   12 43 10.8   +00 21 58     3.166    3.786  120.8   13.3   115   31.2 
2026-06-01 00:00 UT   12 42 56.8   +00 22 04     3.181    3.788  119.8   13.4   115   31.2 
2026-06-02 00:00 UT   12 42 43.9   +00 22 17     3.195    3.789  118.8   13.6   115   31.2 
2026-06-03 00:00 UT   12 42 32.1   +00 22 36     3.210    3.790  117.8   13.7   115   31.2 
2026-06-04 00:00 UT   12 42 21.3   +00 23 01     3.225    3.791  116.8   13.8   115   31.2 
2026-06-05 00:00 UT   12 42 11.6   +00 23 33     3.239    3.792  115.8   13.9   115   31.2 
2026-06-06 00:00 UT   12 42 03.0   +00 24 12     3.254    3.794  114.8   14.1   115   31.3 
2026-06-07 00:00 UT   12 41 55.4   +00 24 57     3.270    3.795  113.8   14.2   115   31.3 
2026-06-08 00:00 UT   12 41 48.9   +00 25 48     3.285    3.796  112.9   14.3   115   31.3 
2026-06-09 00:00 UT   12 41 43.4   +00 26 46     3.300    3.797  111.9   14.4   115   31.3 
2026-06-10 00:00 UT   12 41 38.9   +00 27 50     3.315    3.798  110.9   14.5   114   31.3 

    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.