2023 JY3
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	15 Oct 2025	29.7	3.426 AU	3.443 AU	08h16m	+24°11'	80.7°	16.7°

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)                : 0.5856068
            a (Semimajor axis)              : 2.3271697
            i (Inclination)                 : 7.74021
            Ω (Longitude of ascending node) : 70.01989
            ω (Argument of perihelion)      : 195.34634
            M (Mean anomaly)                : 190.80722
            Epoch                           : 2025 May 05

            L (Longitude of perihelion)     : 85.23292
            B (Latitude of perihelion)      : -2.04268
            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. A more printer-friendly version of the same chart can be found below.

Ephemerides:

Date       Time       RA (2000)    DEC (2000)    delta   radius  elong  phase   PA    magn
2025-10-15 00:00 UT   08 16 22.9   +24 11 52     3.443    3.426   80.7   16.7   284   29.7 
2025-10-15 11:24 UT   08 16 42.3   +24 11 44     3.435    3.425   81.1   16.7   284   29.7 
2025-10-16 00:00 UT   08 17 03.6   +24 11 37     3.425    3.424   81.6   16.7   284   29.7 
2025-10-17 00:00 UT   08 17 43.4   +24 11 26     3.407    3.421   82.4   16.8   284   29.7 
2025-10-18 00:00 UT   08 18 22.5   +24 11 19     3.390    3.418   83.2   16.8   284   29.6 
2025-10-19 00:00 UT   08 19 00.7   +24 11 15     3.372    3.416   84.1   16.9   284   29.6 
2025-10-20 00:00 UT   08 19 38.0   +24 11 14     3.354    3.413   84.9   16.9   284   29.6 
2025-10-21 00:00 UT   08 20 14.4   +24 11 17     3.336    3.410   85.8   16.9   284   29.6 
2025-10-22 00:00 UT   08 20 50.0   +24 11 24     3.318    3.408   86.7   17.0   284   29.6 
2025-10-23 00:00 UT   08 21 24.6   +24 11 35     3.300    3.405   87.5   17.0   284   29.6 
2025-10-24 00:00 UT   08 21 58.3   +24 11 50     3.281    3.402   88.4   17.0   284   29.6 
2025-10-25 00:00 UT   08 22 31.1   +24 12 08     3.263    3.399   89.3   17.0   284   29.6 
2025-10-26 00:00 UT   08 23 03.0   +24 12 31     3.245    3.396   90.1   17.0   283   29.5 
2025-10-27 00:00 UT   08 23 33.8   +24 12 58     3.227    3.394   91.0   17.0   283   29.5 
2025-10-28 00:00 UT   08 24 03.7   +24 13 30     3.209    3.391   91.9   17.0   283   29.5 
2025-10-29 00:00 UT   08 24 32.6   +24 14 06     3.191    3.388   92.8   17.0   283   29.5 
2025-10-30 00:00 UT   08 25 00.4   +24 14 46     3.173    3.385   93.7   17.0   283   29.5 
2025-10-31 00:00 UT   08 25 27.3   +24 15 31     3.155    3.382   94.6   17.0   283   29.5 
2025-11-01 00:00 UT   08 25 53.0   +24 16 20     3.137    3.379   95.5   17.0   283   29.5 
2025-11-02 00:00 UT   08 26 17.8   +24 17 14     3.119    3.376   96.4   17.0   283   29.4 
2025-11-03 00:00 UT   08 26 41.4   +24 18 13     3.101    3.374   97.3   17.0   283   29.4 
2025-11-04 00:00 UT   08 27 03.9   +24 19 17     3.083    3.371   98.2   16.9   283   29.4 
2025-11-05 00:00 UT   08 27 25.4   +24 20 26     3.065    3.368   99.2   16.9   283   29.4 
2025-11-06 00:00 UT   08 27 45.7   +24 21 40     3.047    3.365  100.1   16.9   283   29.4 
2025-11-07 00:00 UT   08 28 04.8   +24 22 58     3.029    3.362  101.0   16.8   283   29.4 
2025-11-08 00:00 UT   08 28 22.8   +24 24 22     3.011    3.359  102.0   16.8   283   29.3 
2025-11-09 00:00 UT   08 28 39.6   +24 25 52     2.993    3.356  102.9   16.7   283   29.3 
2025-11-10 00:00 UT   08 28 55.2   +24 27 26     2.975    3.353  103.8   16.7   283   29.3 
2025-11-11 00:00 UT   08 29 09.6   +24 29 06     2.957    3.350  104.8   16.6   283   29.3 
2025-11-12 00:00 UT   08 29 22.7   +24 30 52     2.939    3.347  105.8   16.5   283   29.3 
2025-11-13 00:00 UT   08 29 34.6   +24 32 43     2.922    3.344  106.7   16.5   282   29.3 
2025-11-14 00:00 UT   08 29 45.2   +24 34 40     2.904    3.341  107.7   16.4   282   29.2 

    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.