2021 JT
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	28 Sep 2026	31.3	1.722 AU	1.922 AU	08h15m	+21°07'	63.3°	31.3°

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 JT are:

            e (Eccentricity)                : 0.3121874
            a (Semimajor axis)              : 1.3312962
            i (Inclination)                 : 2.25825
            Ω (Longitude of ascending node) : 50.86163
            ω (Argument of perihelion)      : 233.60789
            M (Mean anomaly)                : 82.75220
            Epoch                           : 2026 Jun 09

            L (Longitude of perihelion)     : 104.44826
            B (Latitude of perihelion)      : -1.81767
            P (Orbital period in years)     : 1.54            
        

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
2026-09-28 00:00 UT   08 15 12.2   +21 07 17     1.922    1.722   63.3   31.3   283   31.3 
2026-09-28 19:20 UT   08 16 50.3   +21 02 54     1.915    1.723   63.7   31.4   284   31.3 
2026-09-29 00:00 UT   08 17 13.9   +21 01 50     1.913    1.723   63.8   31.4   284   31.3 
2026-09-30 00:00 UT   08 19 15.0   +20 56 20     1.904    1.724   64.3   31.5   284   31.3 
2026-10-01 00:00 UT   08 21 15.5   +20 50 46     1.896    1.726   64.8   31.7   284   31.3 
2026-10-02 00:00 UT   08 23 15.3   +20 45 10     1.887    1.727   65.3   31.8   284   31.3 
2026-10-03 00:00 UT   08 25 14.6   +20 39 31     1.878    1.728   65.8   31.9   284   31.2 
2026-10-04 00:00 UT   08 27 13.2   +20 33 49     1.868    1.729   66.3   32.0   284   31.2 
2026-10-05 00:00 UT   08 29 11.1   +20 28 06     1.859    1.730   66.8   32.1   285   31.2 
2026-10-06 00:00 UT   08 31 08.4   +20 22 19     1.850    1.731   67.3   32.2   285   31.2 
2026-10-07 00:00 UT   08 33 05.1   +20 16 31     1.840    1.732   67.8   32.3   285   31.2 
2026-10-08 00:00 UT   08 35 01.1   +20 10 41     1.831    1.733   68.4   32.4   285   31.2 
2026-10-09 00:00 UT   08 36 56.4   +20 04 49     1.822    1.734   68.9   32.5   285   31.2 
2026-10-10 00:00 UT   08 38 51.0   +19 58 55     1.812    1.735   69.4   32.6   285   31.2 
2026-10-11 00:00 UT   08 40 44.9   +19 52 59     1.802    1.735   70.0   32.7   285   31.2 
2026-10-12 00:00 UT   08 42 38.2   +19 47 03     1.792    1.736   70.5   32.8   286   31.2 
2026-10-13 00:00 UT   08 44 30.7   +19 41 05     1.783    1.737   71.0   32.9   286   31.2 
2026-10-14 00:00 UT   08 46 22.6   +19 35 05     1.773    1.738   71.6   33.0   286   31.2 
2026-10-15 00:00 UT   08 48 13.7   +19 29 05     1.763    1.739   72.1   33.1   286   31.2 
2026-10-16 00:00 UT   08 50 04.1   +19 23 04     1.753    1.739   72.7   33.2   286   31.2 

    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.