2009 WU25
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	1 Mar 2026	30.8	3.622 AU	2.872 AU	13h46m	-05°46'	133.0°	11.5°

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
2026-03-01 00:00 UT   13 46 33.1   -05 46 47     2.872    3.622  133.0   11.5   286   30.8 
2026-03-01 14:49 UT   13 46 15.7   -05 44 41     2.867    3.623  133.7   11.4   286   30.8 
2026-03-02 00:00 UT   13 46 04.6   -05 43 22     2.863    3.624  134.2   11.3   286   30.8 
2026-03-03 00:00 UT   13 45 35.0   -05 39 52     2.854    3.626  135.3   11.1   286   30.8 
2026-03-04 00:00 UT   13 45 04.2   -05 36 16     2.845    3.629  136.4   10.9   286   30.8 
2026-03-05 00:00 UT   13 44 32.3   -05 32 35     2.837    3.631  137.6   10.6   286   30.7 
2026-03-06 00:00 UT   13 43 59.3   -05 28 48     2.828    3.633  138.7   10.4   285   30.7 
2026-03-07 00:00 UT   13 43 25.2   -05 24 57     2.820    3.636  139.9   10.1   285   30.7 
2026-03-08 00:00 UT   13 42 50.0   -05 20 60     2.813    3.638  141.0    9.9   285   30.7 
2026-03-09 00:00 UT   13 42 13.7   -05 16 58     2.805    3.640  142.2    9.6   285   30.7 
2026-03-10 00:00 UT   13 41 36.4   -05 12 51     2.798    3.643  143.3    9.4   284   30.7 
2026-03-11 00:00 UT   13 40 58.0   -05 08 40     2.790    3.645  144.5    9.1   284   30.6 
2026-03-12 00:00 UT   13 40 18.6   -05 04 24     2.783    3.647  145.6    8.8   284   30.6 
2026-03-13 00:00 UT   13 39 38.3   -05 00 04     2.777    3.649  146.8    8.6   284   30.6 
2026-03-14 00:00 UT   13 38 57.0   -04 55 39     2.770    3.651  148.0    8.3   283   30.6 
2026-03-15 00:00 UT   13 38 14.7   -04 51 11     2.764    3.654  149.1    8.0   283   30.6 
2026-03-16 00:00 UT   13 37 31.5   -04 46 38     2.758    3.656  150.3    7.7   282   30.6 
2026-03-17 00:00 UT   13 36 47.4   -04 42 02     2.753    3.658  151.5    7.5   282   30.6 
2026-03-18 00:00 UT   13 36 02.5   -04 37 22     2.747    3.660  152.7    7.2   282   30.5 
2026-03-19 00:00 UT   13 35 16.8   -04 32 39     2.742    3.662  153.8    6.9   281   30.5 
2026-03-20 00:00 UT   13 34 30.2   -04 27 53     2.738    3.665  155.0    6.6   281   30.5 
2026-03-21 00:00 UT   13 33 42.9   -04 23 04     2.733    3.667  156.2    6.3   280   30.5 
2026-03-22 00:00 UT   13 32 54.9   -04 18 13     2.729    3.669  157.4    6.0   279   30.5 
2026-03-23 00:00 UT   13 32 06.1   -04 13 19     2.725    3.671  158.6    5.7   279   30.5 
2026-03-24 00:00 UT   13 31 16.8   -04 08 22     2.722    3.673  159.7    5.4   278   30.4 
2026-03-25 00:00 UT   13 30 26.8   -04 03 24     2.718    3.675  160.9    5.1   277   30.4 
2026-03-26 00:00 UT   13 29 36.2   -03 58 25     2.715    3.677  162.1    4.8   276   30.4 
2026-03-27 00:00 UT   13 28 45.1   -03 53 23     2.713    3.679  163.3    4.5   275   30.4 
2026-03-28 00:00 UT   13 27 53.4   -03 48 21     2.710    3.681  164.4    4.2   273   30.4 
2026-03-29 00:00 UT   13 27 01.4   -03 43 17     2.708    3.683  165.6    3.9   272   30.4 
2026-03-30 00:00 UT   13 26 08.8   -03 38 13     2.706    3.685  166.7    3.6   270   30.3 
2026-03-31 00:00 UT   13 25 15.9   -03 33 08     2.705    3.687  167.8    3.3   268   30.3 

    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.