2020 JK3
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	19 Oct 2025	29.3	2.284 AU	1.362 AU	03h28m	+19°15'	150.8°	12.3°

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)                : 0.3815299
            a (Semimajor axis)              : 1.7271914
            i (Inclination)                 : 2.53727
            Ω (Longitude of ascending node) : 38.07068
            ω (Argument of perihelion)      : 206.29912
            M (Mean anomaly)                : 63.44819
            Epoch                           : 2025 May 05

            L (Longitude of perihelion)     : 64.34748
            B (Latitude of perihelion)      : -1.12386
            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
2025-10-19 00:00 UT   03 28 56.3   +19 15 04     1.362    2.284  150.8   12.3   255   29.3 
2025-10-19 21:44 UT   03 27 51.5   +19 12 15     1.358    2.286  152.0   11.8   255   29.3 
2025-10-20 00:00 UT   03 27 44.7   +19 11 56     1.358    2.286  152.1   11.8   255   29.3 
2025-10-21 00:00 UT   03 26 31.3   +19 08 41     1.354    2.288  153.4   11.2   255   29.3 
2025-10-22 00:00 UT   03 25 16.3   +19 05 17     1.350    2.290  154.7   10.7   255   29.2 
2025-10-23 00:00 UT   03 23 59.7   +19 01 46     1.347    2.292  156.0   10.2   255   29.2 
2025-10-24 00:00 UT   03 22 41.6   +18 58 07     1.344    2.294  157.3    9.6   254   29.2 
2025-10-25 00:00 UT   03 21 22.1   +18 54 21     1.341    2.296  158.6    9.1   254   29.2 
2025-10-26 00:00 UT   03 20 01.3   +18 50 27     1.338    2.298  159.9    8.5   254   29.1 
2025-10-27 00:00 UT   03 18 39.3   +18 46 26     1.336    2.299  161.3    8.0   254   29.1 
2025-10-28 00:00 UT   03 17 16.2   +18 42 19     1.334    2.301  162.6    7.4   253   29.1 
2025-10-29 00:00 UT   03 15 52.1   +18 38 05     1.332    2.303  163.9    6.9   253   29.0 
2025-10-30 00:00 UT   03 14 27.1   +18 33 44     1.331    2.305  165.3    6.3   253   29.0 
2025-10-31 00:00 UT   03 13 01.2   +18 29 18     1.329    2.307  166.6    5.7   252   29.0 
2025-11-01 00:00 UT   03 11 34.6   +18 24 46     1.328    2.308  168.0    5.1   252   29.0 
2025-11-02 00:00 UT   03 10 07.4   +18 20 08     1.328    2.310  169.3    4.6   251   28.9 
2025-11-03 00:00 UT   03 08 39.8   +18 15 25     1.327    2.312  170.7    4.0   251   28.9 
2025-11-04 00:00 UT   03 07 11.7   +18 10 37     1.327    2.314  172.0    3.4   250   28.9 
2025-11-05 00:00 UT   03 05 43.3   +18 05 44     1.328    2.315  173.4    2.8   249   28.8 
2025-11-06 00:00 UT   03 04 14.8   +18 00 48     1.328    2.317  174.7    2.3   247   28.8 
2025-11-07 00:00 UT   03 02 46.1   +17 55 47     1.329    2.319  176.1    1.7   244   28.8 
2025-11-08 00:00 UT   03 01 17.5   +17 50 44     1.330    2.320  177.4    1.1   238   28.7 
2025-11-09 00:00 UT   02 59 49.0   +17 45 37     1.331    2.322  178.7    0.6   222   28.7 
2025-11-10 00:00 UT   02 58 20.8   +17 40 28     1.333    2.324  179.2    0.3   147   28.6 
2025-11-11 00:00 UT   02 56 52.9   +17 35 16     1.335    2.325  178.3    0.7    98   28.7 
2025-11-12 00:00 UT   02 55 25.4   +17 30 03     1.338    2.327  177.0    1.3    88   28.7 
2025-11-13 00:00 UT   02 53 58.5   +17 24 49     1.340    2.328  175.6    1.9    83   28.8 

    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.