2004 XD51
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	20 Jun 2026	27.3	1.522 AU	0.858 AU	22h56m	-14°36'	108.3°	39.3°

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 2004 XD51 are:

            e (Eccentricity)                : 0.2411301
            a (Semimajor axis)              : 1.2436125
            i (Inclination)                 : 6.79613
            Ω (Longitude of ascending node) : 83.50326
            ω (Argument of perihelion)      : 54.31209
            M (Mean anomaly)                : 3.06620
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 137.62371
            B (Latitude of perihelion)      : 5.51544
            P (Orbital period in years)     : 1.39            
        

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
2026-06-20 00:00 UT   22 56 58.9   -14 36 25     0.858    1.522  108.3   39.3   250   27.3 
2026-06-20 08:50 UT   22 57 23.3   -14 37 26     0.855    1.522  108.6   39.2   250   27.2 
2026-06-21 00:00 UT   22 58 04.6   -14 39 18     0.851    1.523  109.0   39.1   250   27.2 
2026-06-22 00:00 UT   22 59 08.4   -14 42 29     0.843    1.524  109.8   38.9   250   27.2 
2026-06-23 00:00 UT   23 00 10.3   -14 45 58     0.836    1.525  110.5   38.6   250   27.2 
2026-06-24 00:00 UT   23 01 10.4   -14 49 46     0.829    1.526  111.2   38.4   250   27.2 
2026-06-25 00:00 UT   23 02 08.4   -14 53 53     0.821    1.527  112.0   38.1   250   27.1 
2026-06-26 00:00 UT   23 03 04.5   -14 58 19     0.814    1.528  112.7   37.8   251   27.1 
2026-06-27 00:00 UT   23 03 58.6   -15 03 04     0.807    1.529  113.5   37.6   251   27.1 
2026-06-28 00:00 UT   23 04 50.5   -15 08 10     0.800    1.530  114.3   37.3   251   27.1 
2026-06-29 00:00 UT   23 05 40.3   -15 13 36     0.793    1.531  115.0   37.0   251   27.0 
2026-06-30 00:00 UT   23 06 28.0   -15 19 22     0.786    1.532  115.8   36.7   251   27.0 
2026-07-01 00:00 UT   23 07 13.4   -15 25 30     0.779    1.533  116.6   36.4   251   27.0 
2026-07-02 00:00 UT   23 07 56.6   -15 31 59     0.771    1.533  117.4   36.0   252   26.9 
2026-07-03 00:00 UT   23 08 37.4   -15 38 50     0.764    1.534  118.3   35.7   252   26.9 
2026-07-04 00:00 UT   23 09 15.8   -15 46 03     0.758    1.535  119.1   35.4   252   26.9 
2026-07-05 00:00 UT   23 09 51.7   -15 53 39     0.751    1.536  119.9   35.0   252   26.9 
2026-07-06 00:00 UT   23 10 25.2   -16 01 37     0.744    1.536  120.8   34.7   253   26.8 
2026-07-07 00:00 UT   23 10 56.1   -16 09 59     0.737    1.537  121.6   34.3   253   26.8 
2026-07-08 00:00 UT   23 11 24.3   -16 18 44     0.730    1.538  122.5   33.9   253   26.8 
2026-07-09 00:00 UT   23 11 49.8   -16 27 54     0.723    1.538  123.4   33.5   254   26.7 
2026-07-10 00:00 UT   23 12 12.6   -16 37 27     0.717    1.539  124.2   33.1   254   26.7 
2026-07-11 00:00 UT   23 12 32.5   -16 47 25     0.710    1.539  125.1   32.7   254   26.7 
2026-07-12 00:00 UT   23 12 49.5   -16 57 47     0.704    1.540  126.1   32.3   255   26.6 
2026-07-13 00:00 UT   23 13 03.6   -17 08 33     0.697    1.540  127.0   31.8   255   26.6 
2026-07-14 00:00 UT   23 13 14.6   -17 19 45     0.691    1.541  127.9   31.4   256   26.6 
2026-07-15 00:00 UT   23 13 22.5   -17 31 21     0.685    1.541  128.8   30.9   256   26.6 
2026-07-16 00:00 UT   23 13 27.3   -17 43 21     0.678    1.541  129.8   30.4   257   26.5 
2026-07-17 00:00 UT   23 13 28.9   -17 55 47     0.672    1.542  130.8   30.0   257   26.5 
2026-07-18 00:00 UT   23 13 27.2   -18 08 36     0.666    1.542  131.7   29.5   258   26.5 
2026-07-19 00:00 UT   23 13 22.3   -18 21 50     0.660    1.542  132.7   29.0   258   26.4 
2026-07-20 00:00 UT   23 13 13.9   -18 35 27     0.654    1.543  133.7   28.4   259   26.4 

    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.