2021 JG2
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	21 Sep 2026	27.5	1.214 AU	0.521 AU	05h04m	+18°45'	100.7°	54.3°

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 2021 JG2 are:

            e (Eccentricity)                : 0.3800718
            a (Semimajor axis)              : 1.4078961
            i (Inclination)                 : 1.87570
            Ω (Longitude of ascending node) : 134.42778
            ω (Argument of perihelion)      : 156.91068
            M (Mean anomaly)                : 347.11788
            Epoch                           : 2026 Jun 09

            L (Longitude of perihelion)     : 111.34954
            B (Latitude of perihelion)      : 0.73547
            P (Orbital period in years)     : 1.67            
        

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
2026-09-21 00:00 UT   05 04 44.6   +18 45 05     0.521    1.214  100.7   54.3   265   27.5 
2026-09-21 07:16 UT   05 04 51.1   +18 44 24     0.520    1.216  101.0   54.1   265   27.5 
2026-09-22 00:00 UT   05 05 04.7   +18 42 47     0.520    1.220  101.6   53.7   265   27.4 
2026-09-23 00:00 UT   05 05 21.3   +18 40 25     0.519    1.226  102.6   53.0   266   27.4 
2026-09-24 00:00 UT   05 05 34.4   +18 37 58     0.518    1.232  103.5   52.4   266   27.4 
2026-09-25 00:00 UT   05 05 43.9   +18 35 27     0.518    1.238  104.4   51.7   266   27.4 
2026-09-26 00:00 UT   05 05 49.7   +18 32 51     0.517    1.244  105.4   51.0   266   27.4 
2026-09-27 00:00 UT   05 05 51.8   +18 30 11     0.516    1.250  106.4   50.3   266   27.4 
2026-09-28 00:00 UT   05 05 50.1   +18 27 26     0.515    1.256  107.3   49.6   266   27.4 
2026-09-29 00:00 UT   05 05 44.5   +18 24 37     0.514    1.262  108.3   48.9   266   27.4 
2026-09-30 00:00 UT   05 05 35.0   +18 21 43     0.513    1.268  109.4   48.2   266   27.3 
2026-10-01 00:00 UT   05 05 21.5   +18 18 45     0.512    1.274  110.4   47.5   266   27.3 
2026-10-02 00:00 UT   05 05 04.0   +18 15 42     0.511    1.279  111.5   46.7   266   27.3 
2026-10-03 00:00 UT   05 04 42.4   +18 12 34     0.510    1.285  112.5   46.0   266   27.3 
2026-10-04 00:00 UT   05 04 16.5   +18 09 22     0.509    1.291  113.6   45.2   267   27.3 
2026-10-05 00:00 UT   05 03 46.4   +18 06 05     0.507    1.297  114.7   44.5   267   27.3 
2026-10-06 00:00 UT   05 03 12.1   +18 02 43     0.506    1.303  115.8   43.7   267   27.3 
2026-10-07 00:00 UT   05 02 33.4   +17 59 16     0.505    1.309  117.0   42.9   267   27.2 
2026-10-08 00:00 UT   05 01 50.3   +17 55 44     0.504    1.315  118.1   42.1   267   27.2 
2026-10-09 00:00 UT   05 01 02.8   +17 52 07     0.503    1.320  119.3   41.3   267   27.2 
2026-10-10 00:00 UT   05 00 10.9   +17 48 25     0.502    1.326  120.5   40.5   267   27.2 
2026-10-11 00:00 UT   04 59 14.5   +17 44 38     0.501    1.332  121.7   39.6   267   27.2 
2026-10-12 00:00 UT   04 58 13.8   +17 40 47     0.500    1.338  122.9   38.8   267   27.1 
2026-10-13 00:00 UT   04 57 08.6   +17 36 50     0.499    1.343  124.2   37.9   267   27.1 
2026-10-14 00:00 UT   04 55 59.0   +17 32 48     0.498    1.349  125.4   37.0   267   27.1 
2026-10-15 00:00 UT   04 54 45.0   +17 28 40     0.497    1.355  126.7   36.2   267   27.1 
2026-10-16 00:00 UT   04 53 26.7   +17 24 28     0.497    1.360  128.0   35.3   267   27.1 
2026-10-17 00:00 UT   04 52 04.1   +17 20 10     0.496    1.366  129.3   34.4   268   27.0 
2026-10-18 00:00 UT   04 50 37.2   +17 15 47     0.495    1.372  130.7   33.4   268   27.0 
2026-10-19 00:00 UT   04 49 06.3   +17 11 18     0.495    1.377  132.0   32.5   268   27.0 
2026-10-20 00:00 UT   04 47 31.2   +17 06 45     0.494    1.383  133.4   31.6   268   27.0 
2026-10-21 00:00 UT   04 45 52.2   +17 02 05     0.494    1.389  134.8   30.6   268   27.0 

    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.