2020 JK3
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	19 Dec 2025	30.0	2.370 AU	1.610 AU	02h18m	+15°03'	130.4°	18.4°

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 2020 JK3 are:

            e (Eccentricity)                : 0.3814483
            a (Semimajor axis)              : 1.7271935
            i (Inclination)                 : 2.53714
            Ω (Longitude of ascending node) : 38.07050
            ω (Argument of perihelion)      : 206.29540
            M (Mean anomaly)                : 150.30434
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 64.34359
            B (Latitude of perihelion)      : -1.12366
            P (Orbital period in years)     : 2.27            
        

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
2025-12-19 00:00 UT   02 18 35.6   +15 03 14     1.610    2.370  130.4   18.4    72   30.0 
2025-12-19 10:28 UT   02 18 25.9   +15 02 34     1.615    2.370  129.9   18.6    72   30.0 
2025-12-20 00:00 UT   02 18 13.9   +15 01 46     1.622    2.371  129.3   18.7    72   30.0 
2025-12-21 00:00 UT   02 17 54.4   +15 00 28     1.633    2.371  128.2   19.0    72   30.0 
2025-12-22 00:00 UT   02 17 37.0   +14 59 20     1.645    2.372  127.1   19.3    72   30.0 
2025-12-23 00:00 UT   02 17 21.7   +14 58 21     1.657    2.373  126.0   19.6    72   30.1 
2025-12-24 00:00 UT   02 17 08.4   +14 57 32     1.669    2.374  125.0   19.9    72   30.1 
2025-12-25 00:00 UT   02 16 57.3   +14 56 53     1.681    2.374  123.9   20.1    72   30.1 
2025-12-26 00:00 UT   02 16 48.2   +14 56 24     1.693    2.375  122.8   20.4    72   30.1 
2025-12-27 00:00 UT   02 16 41.2   +14 56 04     1.706    2.376  121.8   20.6    72   30.2 
2025-12-28 00:00 UT   02 16 36.1   +14 55 54     1.718    2.376  120.7   20.8    71   30.2 
2025-12-29 00:00 UT   02 16 33.1   +14 55 53     1.731    2.377  119.7   21.1    71   30.2 
2025-12-30 00:00 UT   02 16 32.0   +14 56 02     1.743    2.377  118.7   21.3    71   30.2 
2025-12-31 00:00 UT   02 16 32.8   +14 56 20     1.756    2.378  117.7   21.5    71   30.2 
2026-01-01 00:00 UT   02 16 35.5   +14 56 47     1.769    2.379  116.7   21.7    71   30.3 
2026-01-02 00:00 UT   02 16 40.1   +14 57 22     1.782    2.379  115.7   21.9    71   30.3 
2026-01-03 00:00 UT   02 16 46.6   +14 58 07     1.795    2.380  114.7   22.1    71   30.3 
2026-01-04 00:00 UT   02 16 54.9   +14 59 00     1.808    2.380  113.7   22.2    71   30.3 
2026-01-05 00:00 UT   02 17 05.0   +15 00 02     1.821    2.381  112.7   22.4    71   30.4 
2026-01-06 00:00 UT   02 17 16.8   +15 01 12     1.834    2.381  111.8   22.6    71   30.4 
2026-01-07 00:00 UT   02 17 30.4   +15 02 31     1.848    2.381  110.8   22.7    71   30.4 
2026-01-08 00:00 UT   02 17 45.7   +15 03 58     1.861    2.382  109.9   22.8    71   30.4 
2026-01-09 00:00 UT   02 18 02.8   +15 05 33     1.874    2.382  108.9   23.0    71   30.4 
2026-01-10 00:00 UT   02 18 21.5   +15 07 16     1.888    2.383  108.0   23.1    71   30.5 
2026-01-11 00:00 UT   02 18 41.8   +15 09 06     1.901    2.383  107.0   23.2    71   30.5 
2026-01-12 00:00 UT   02 19 03.8   +15 11 05     1.915    2.383  106.1   23.4    71   30.5 
2026-01-13 00:00 UT   02 19 27.4   +15 13 11     1.929    2.384  105.2   23.5    71   30.5 
2026-01-14 00:00 UT   02 19 52.6   +15 15 24     1.942    2.384  104.3   23.6    71   30.5 
2026-01-15 00:00 UT   02 20 19.4   +15 17 45     1.956    2.384  103.4   23.7    71   30.6 
2026-01-16 00:00 UT   02 20 47.7   +15 20 13     1.970    2.385  102.5   23.8    71   30.6 
2026-01-17 00:00 UT   02 21 17.5   +15 22 48     1.984    2.385  101.6   23.8    71   30.6 
2026-01-18 00:00 UT   02 21 48.8   +15 25 30     1.997    2.385  100.7   23.9    71   30.6 

    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.