2009 WU25
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	22 Apr 2026	30.4	3.728 AU	2.753 AU	13h05m	-01°47'	163.6°	4.4°

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
2026-04-22 00:00 UT   13 05 35.6   -01 47 19     2.753    3.728  163.6    4.4   129   30.4 
2026-04-22 00:21 UT   13 05 34.8   -01 47 15     2.754    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 
2026-05-01 00:00 UT   12 58 22.7   -01 12 56     2.816    3.743  153.3    7.0   122   30.6 
2026-05-02 00:00 UT   12 57 38.2   -01 09 36     2.825    3.745  152.1    7.2   121   30.7 
2026-05-03 00:00 UT   12 56 54.6   -01 06 22     2.833    3.747  151.0    7.5   121   30.7 
2026-05-04 00:00 UT   12 56 11.8   -01 03 14     2.842    3.748  149.8    7.8   121   30.7 
2026-05-05 00:00 UT   12 55 29.8   -01 00 13     2.851    3.750  148.7    8.0   120   30.7 
2026-05-06 00:00 UT   12 54 48.8   +00 57 18     2.861    3.751  147.6    8.3   120   30.7 
2026-05-07 00:00 UT   12 54 08.6   +00 54 29     2.870    3.753  146.4    8.5   120   30.7 
2026-05-08 00:00 UT   12 53 29.4   +00 51 48     2.880    3.754  145.3    8.8   119   30.8 
2026-05-09 00:00 UT   12 52 51.1   +00 49 13     2.891    3.756  144.2    9.0   119   30.8 
2026-05-10 00:00 UT   12 52 13.7   +00 46 45     2.901    3.757  143.1    9.3   119   30.8 
2026-05-11 00:00 UT   12 51 37.4   +00 44 23     2.912    3.759  142.0    9.5   119   30.8 
2026-05-12 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 

    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.