2017 WD13
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	10 Oct 2026	27.1	1.333 AU	1.082 AU	07h54m	+20°16'	79.6°	47.5°

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 2017 WD13 are:

            e (Eccentricity)                : 0.6930065
            a (Semimajor axis)              : 2.0537134
            i (Inclination)                 : 0.68248
            Ω (Longitude of ascending node) : 209.33681
            ω (Argument of perihelion)      : 113.25512
            M (Mean anomaly)                : 344.14852
            Epoch                           : 2026 Jun 09

            L (Longitude of perihelion)     : 142.59340
            B (Latitude of perihelion)      : 0.62703
            P (Orbital period in years)     : 2.94            
        

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
2026-10-10 00:00 UT   07 54 46.4   +20 16 24     1.082    1.333   79.6   47.5   281   27.1 
2026-10-10 20:44 UT   07 55 27.6   +20 13 57     1.082    1.343   80.3   47.1   281   27.1 
2026-10-11 00:00 UT   07 55 34.0   +20 13 34     1.082    1.344   80.4   47.1   281   27.1 
2026-10-12 00:00 UT   07 56 19.2   +20 10 50     1.082    1.355   81.2   46.7   281   27.1 
2026-10-13 00:00 UT   07 57 02.1   +20 08 11     1.082    1.366   82.0   46.3   281   27.1 
2026-10-14 00:00 UT   07 57 42.6   +20 05 38     1.082    1.377   82.8   46.0   281   27.1 
2026-10-15 00:00 UT   07 58 20.6   +20 03 12     1.082    1.388   83.7   45.6   281   27.1 
2026-10-16 00:00 UT   07 58 56.2   +20 00 51     1.081    1.399   84.5   45.2   281   27.1 
2026-10-17 00:00 UT   07 59 29.2   +19 58 38     1.081    1.410   85.4   44.8   281   27.1 
2026-10-18 00:00 UT   07 59 59.7   +19 56 31     1.080    1.420   86.2   44.4   281   27.1 
2026-10-19 00:00 UT   08 00 27.7   +19 54 31     1.079    1.431   87.1   44.0   281   27.1 
2026-10-20 00:00 UT   08 00 53.1   +19 52 38     1.078    1.442   88.0   43.7   282   27.2 
2026-10-21 00:00 UT   08 01 15.8   +19 50 53     1.077    1.453   88.9   43.3   282   27.2 
2026-10-22 00:00 UT   08 01 35.9   +19 49 15     1.076    1.463   89.8   42.9   282   27.2 
2026-10-23 00:00 UT   08 01 53.4   +19 47 44     1.074    1.474   90.7   42.5   282   27.2 
2026-10-24 00:00 UT   08 02 08.1   +19 46 21     1.073    1.484   91.7   42.1   282   27.2 
2026-10-25 00:00 UT   08 02 20.1   +19 45 06     1.072    1.495   92.6   41.7   282   27.2 
2026-10-26 00:00 UT   08 02 29.3   +19 43 58     1.070    1.505   93.6   41.2   282   27.2 
2026-10-27 00:00 UT   08 02 35.8   +19 42 59     1.068    1.516   94.5   40.8   282   27.2 
2026-10-28 00:00 UT   08 02 39.4   +19 42 08     1.067    1.526   95.5   40.4   282   27.2 
2026-10-29 00:00 UT   08 02 40.1   +19 41 25     1.065    1.537   96.5   40.0   282   27.2 
2026-10-30 00:00 UT   08 02 37.9   +19 40 51     1.063    1.547   97.5   39.5   282   27.2 
2026-10-31 00:00 UT   08 02 32.8   +19 40 25     1.061    1.557   98.5   39.1   282   27.2 
2026-11-01 00:00 UT   08 02 24.7   +19 40 07     1.059    1.568   99.6   38.6   282   27.2 
2026-11-02 00:00 UT   08 02 13.6   +19 39 59     1.057    1.578  100.6   38.2   282   27.2 
2026-11-03 00:00 UT   08 01 59.5   +19 39 59     1.055    1.588  101.7   37.7   282   27.1 
2026-11-04 00:00 UT   08 01 42.3   +19 40 08     1.053    1.598  102.7   37.3   282   27.1 
2026-11-05 00:00 UT   08 01 21.9   +19 40 26     1.051    1.608  103.8   36.8   282   27.1 
2026-11-06 00:00 UT   08 00 58.4   +19 40 53     1.049    1.618  104.9   36.3   282   27.1 
2026-11-07 00:00 UT   08 00 31.7   +19 41 28     1.047    1.628  106.0   35.8   282   27.1 
2026-11-08 00:00 UT   08 00 01.8   +19 42 13     1.045    1.638  107.1   35.3   282   27.1 
2026-11-09 00:00 UT   07 59 28.7   +19 43 07     1.043    1.648  108.3   34.8   282   27.1 

    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.