2023 JY3
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	28 Nov 2025	29.0	3.298 AU	2.669 AU	08h29m	+25°11'	121.9°	14.7°

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 2023 JY3 are:

            e (Eccentricity)                : 0.5854805
            a (Semimajor axis)              : 2.3257818
            i (Inclination)                 : 7.70608
            Ω (Longitude of ascending node) : 69.88740
            ω (Argument of perihelion)      : 195.61318
            M (Mean anomaly)                : 245.95102
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 85.36637
            B (Latitude of perihelion)      : -2.06823
            P (Orbital period in years)     : 3.55            
        

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
2025-11-28 00:00 UT   08 29 40.7   +25 11 48     2.669    3.298  121.9   14.7   280   29.0 
2025-11-28 13:19 UT   08 29 34.8   +25 13 41     2.660    3.297  122.5   14.6   280   29.0 
2025-11-29 00:00 UT   08 29 29.8   +25 15 13     2.653    3.295  122.9   14.6   280   29.0 
2025-11-30 00:00 UT   08 29 17.3   +25 18 43     2.637    3.292  124.0   14.4   280   28.9 
2025-12-01 00:00 UT   08 29 03.2   +25 22 19     2.621    3.289  125.1   14.2   280   28.9 
2025-12-02 00:00 UT   08 28 47.6   +25 26 00     2.606    3.285  126.1   14.0   279   28.9 
2025-12-03 00:00 UT   08 28 30.4   +25 29 47     2.590    3.282  127.2   13.8   279   28.9 
2025-12-04 00:00 UT   08 28 11.6   +25 33 40     2.575    3.279  128.3   13.6   279   28.8 
2025-12-05 00:00 UT   08 27 51.1   +25 37 38     2.560    3.275  129.4   13.4   279   28.8 
2025-12-06 00:00 UT   08 27 29.1   +25 41 42     2.545    3.272  130.5   13.2   278   28.8 
2025-12-07 00:00 UT   08 27 05.5   +25 45 51     2.530    3.268  131.6   13.0   278   28.8 
2025-12-08 00:00 UT   08 26 40.2   +25 50 05     2.516    3.265  132.7   12.8   278   28.8 
2025-12-09 00:00 UT   08 26 13.3   +25 54 24     2.501    3.262  133.8   12.6   277   28.7 
2025-12-10 00:00 UT   08 25 44.7   +25 58 48     2.487    3.258  134.9   12.4   277   28.7 
2025-12-11 00:00 UT   08 25 14.5   +26 03 17     2.473    3.255  136.0   12.1   277   28.7 
2025-12-12 00:00 UT   08 24 42.6   +26 07 51     2.460    3.251  137.2   11.9   276   28.7 
2025-12-13 00:00 UT   08 24 09.1   +26 12 29     2.446    3.248  138.3   11.6   276   28.6 
2025-12-14 00:00 UT   08 23 33.9   +26 17 12     2.433    3.244  139.5   11.4   276   28.6 
2025-12-15 00:00 UT   08 22 57.0   +26 21 59     2.420    3.241  140.6   11.1   275   28.6 
2025-12-16 00:00 UT   08 22 18.5   +26 26 49     2.407    3.237  141.7   10.9   275   28.6 
2025-12-17 00:00 UT   08 21 38.3   +26 31 44     2.394    3.234  142.9   10.6   274   28.5 
2025-12-18 00:00 UT   08 20 56.5   +26 36 42     2.382    3.230  144.1   10.3   274   28.5 
2025-12-19 00:00 UT   08 20 13.1   +26 41 43     2.369    3.227  145.2   10.0   273   28.5 
2025-12-20 00:00 UT   08 19 28.0   +26 46 48     2.357    3.223  146.4    9.7   273   28.5 
2025-12-21 00:00 UT   08 18 41.3   +26 51 55     2.346    3.220  147.6    9.4   272   28.4 
2025-12-22 00:00 UT   08 17 53.1   +26 57 05     2.334    3.216  148.7    9.1   271   28.4 
2025-12-23 00:00 UT   08 17 03.2   +27 02 17     2.323    3.212  149.9    8.8   271   28.4 
2025-12-24 00:00 UT   08 16 11.8   +27 07 31     2.312    3.209  151.1    8.5   270   28.4 
2025-12-25 00:00 UT   08 15 18.9   +27 12 47     2.302    3.205  152.3    8.2   269   28.3 
2025-12-26 00:00 UT   08 14 24.5   +27 18 04     2.291    3.201  153.4    7.9   268   28.3 
2025-12-27 00:00 UT   08 13 28.7   +27 23 22     2.281    3.198  154.6    7.6   267   28.3 
2025-12-28 00:00 UT   08 12 31.4   +27 28 41     2.272    3.194  155.8    7.3   266   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.