2009 WU25
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	28 Jan 2026	31.2	3.539 AU	3.240 AU	13h51m	-06°40'	99.5°	15.9°

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
2026-01-28 00:00 UT   13 51 08.2   -06 40 50     3.240    3.539   99.5   15.9   290   31.2 
2026-01-28 22:16 UT   13 51 17.2   -06 40 49     3.228    3.541  100.4   15.9   290   31.2 
2026-01-29 00:00 UT   13 51 17.9   -06 40 48     3.228    3.541  100.5   15.9   290   31.2 
2026-01-30 00:00 UT   13 51 26.5   -06 40 41     3.215    3.544  101.4   15.8   290   31.1 
2026-01-31 00:00 UT   13 51 33.9   -06 40 27     3.202    3.547  102.4   15.7   290   31.1 
2026-02-01 00:00 UT   13 51 40.3   -06 40 07     3.189    3.550  103.4   15.7   290   31.1 
2026-02-02 00:00 UT   13 51 45.5   -06 39 40     3.177    3.552  104.4   15.6   289   31.1 
2026-02-03 00:00 UT   13 51 49.5   -06 39 07     3.164    3.555  105.4   15.5   289   31.1 
2026-02-04 00:00 UT   13 51 52.5   -06 38 27     3.152    3.558  106.4   15.4   289   31.1 
2026-02-05 00:00 UT   13 51 54.2   -06 37 41     3.139    3.561  107.4   15.3   289   31.1 
2026-02-06 00:00 UT   13 51 54.8   -06 36 49     3.127    3.563  108.4   15.2   289   31.1 
2026-02-07 00:00 UT   13 51 54.2   -06 35 49     3.114    3.566  109.4   15.1   289   31.1 
2026-02-08 00:00 UT   13 51 52.4   -06 34 44     3.102    3.569  110.5   15.0   289   31.1 
2026-02-09 00:00 UT   13 51 49.4   -06 33 31     3.090    3.571  111.5   14.9   289   31.0 
2026-02-10 00:00 UT   13 51 45.2   -06 32 12     3.078    3.574  112.5   14.8   289   31.0 
2026-02-11 00:00 UT   13 51 39.8   -06 30 47     3.066    3.577  113.6   14.7   289   31.0 
2026-02-12 00:00 UT   13 51 33.2   -06 29 15     3.054    3.579  114.6   14.5   289   31.0 
2026-02-13 00:00 UT   13 51 25.3   -06 27 36     3.042    3.582  115.6   14.4   288   31.0 
2026-02-14 00:00 UT   13 51 16.3   -06 25 51     3.030    3.584  116.7   14.2   288   31.0 
2026-02-15 00:00 UT   13 51 06.0   -06 23 59     3.019    3.587  117.8   14.1   288   31.0 
2026-02-16 00:00 UT   13 50 54.5   -06 22 01     3.007    3.589  118.8   14.0   288   31.0 
2026-02-17 00:00 UT   13 50 41.7   -06 19 56     2.996    3.592  119.9   13.8   288   31.0 
2026-02-18 00:00 UT   13 50 27.7   -06 17 45     2.985    3.595  121.0   13.6   288   30.9 
2026-02-19 00:00 UT   13 50 12.5   -06 15 27     2.974    3.597  122.0   13.5   288   30.9 
2026-02-20 00:00 UT   13 49 56.0   -06 13 02     2.963    3.600  123.1   13.3   288   30.9 
2026-02-21 00:00 UT   13 49 38.3   -06 10 32     2.952    3.602  124.2   13.1   287   30.9 
2026-02-22 00:00 UT   13 49 19.4   -06 07 55     2.942    3.605  125.3   12.9   287   30.9 
2026-02-23 00:00 UT   13 48 59.2   -06 05 12     2.931    3.607  126.4   12.8   287   30.9 
2026-02-24 00:00 UT   13 48 37.9   -06 02 23     2.921    3.609  127.5   12.6   287   30.9 
2026-02-25 00:00 UT   13 48 15.3   -05 59 27     2.911    3.612  128.6   12.4   287   30.8 
2026-02-26 00:00 UT   13 47 51.5   -05 56 26     2.901    3.614  129.7   12.2   287   30.8 
2026-02-27 00:00 UT   13 47 26.6   -05 53 19     2.891    3.617  130.8   12.0   287   30.8 

    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.