2019 YD3
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	29 May 2026	29.0	1.947 AU	1.235 AU	20h40m	-18°22'	119.7°	26.9°

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 2019 YD3 are:

            e (Eccentricity)                : 0.3487908
            a (Semimajor axis)              : 1.5258761
            i (Inclination)                 : 1.19638
            Ω (Longitude of ascending node) : 100.41653
            ω (Argument of perihelion)      : 26.99466
            M (Mean anomaly)                : 31.29230
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 127.40614
            B (Latitude of perihelion)      : 0.54301
            P (Orbital period in years)     : 1.88            
        

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
2026-05-29 00:00 UT   20 40 10.6   -18 22 31     1.235    1.947  119.7   26.9   255   29.0 
2026-05-29 20:39 UT   20 40 08.4   -18 23 12     1.228    1.949  120.5   26.6   255   29.0 
2026-05-30 00:00 UT   20 40 07.9   -18 23 19     1.227    1.949  120.6   26.6   255   29.0 
2026-05-31 00:00 UT   20 40 02.7   -18 24 17     1.219    1.952  121.6   26.2   255   29.0 
2026-06-01 00:00 UT   20 39 55.1   -18 25 24     1.211    1.954  122.6   25.9   255   29.0 
2026-06-02 00:00 UT   20 39 44.9   -18 26 41     1.203    1.956  123.6   25.6   255   28.9 
2026-06-03 00:00 UT   20 39 32.2   -18 28 08     1.195    1.958  124.6   25.2   255   28.9 
2026-06-04 00:00 UT   20 39 17.0   -18 29 45     1.188    1.961  125.7   24.9   255   28.9 
2026-06-05 00:00 UT   20 38 59.1   -18 31 33     1.180    1.963  126.7   24.5   255   28.9 
2026-06-06 00:00 UT   20 38 38.6   -18 33 30     1.173    1.965  127.7   24.1   255   28.8 
2026-06-07 00:00 UT   20 38 15.5   -18 35 37     1.165    1.967  128.8   23.7   255   28.8 
2026-06-08 00:00 UT   20 37 49.7   -18 37 55     1.158    1.969  129.8   23.3   255   28.8 
2026-06-09 00:00 UT   20 37 21.3   -18 40 23     1.151    1.971  130.9   22.9   256   28.8 
2026-06-10 00:00 UT   20 36 50.2   -18 43 00     1.144    1.973  132.0   22.5   256   28.7 
2026-06-11 00:00 UT   20 36 16.4   -18 45 48     1.137    1.975  133.1   22.0   256   28.7 
2026-06-12 00:00 UT   20 35 39.9   -18 48 45     1.130    1.977  134.2   21.6   256   28.7 
2026-06-13 00:00 UT   20 35 00.6   -18 51 53     1.124    1.979  135.3   21.1   256   28.7 
2026-06-14 00:00 UT   20 34 18.7   -18 55 10     1.117    1.981  136.5   20.7   256   28.6 
2026-06-15 00:00 UT   20 33 34.1   -18 58 36     1.111    1.983  137.6   20.2   256   28.6 
2026-06-16 00:00 UT   20 32 46.8   -19 02 12     1.105    1.985  138.8   19.7   256   28.6 
2026-06-17 00:00 UT   20 31 56.8   -19 05 57     1.099    1.987  139.9   19.2   256   28.6 
2026-06-18 00:00 UT   20 31 04.1   -19 09 51     1.093    1.989  141.1   18.7   256   28.5 
2026-06-19 00:00 UT   20 30 08.9   -19 13 53     1.087    1.991  142.3   18.2   256   28.5 
2026-06-20 00:00 UT   20 29 11.0   -19 18 04     1.082    1.992  143.5   17.7   256   28.5 
2026-06-21 00:00 UT   20 28 10.6   -19 22 22     1.077    1.994  144.7   17.1   257   28.5 
2026-06-22 00:00 UT   20 27 07.6   -19 26 48     1.072    1.996  145.9   16.6   257   28.4 
2026-06-23 00:00 UT   20 26 02.1   -19 31 21     1.067    1.998  147.1   16.0   257   28.4 
2026-06-24 00:00 UT   20 24 54.2   -19 36 02     1.062    1.999  148.3   15.5   257   28.4 
2026-06-25 00:00 UT   20 23 43.9   -19 40 48     1.057    2.001  149.6   14.9   257   28.4 
2026-06-26 00:00 UT   20 22 31.3   -19 45 41     1.053    2.003  150.8   14.3   257   28.3 
2026-06-27 00:00 UT   20 21 16.3   -19 50 39     1.049    2.004  152.1   13.7   257   28.3 
2026-06-28 00:00 UT   20 19 59.2   -19 55 43     1.045    2.006  153.3   13.1   258   28.3 

    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.