2021 TJ12
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	25 Jul 2026	30.2	2.157 AU	1.767 AU	14h38m	-07°43'	98.0°	27.8°

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 TJ12 are:

            e (Eccentricity)                : 0.4161233
            a (Semimajor axis)              : 1.5269819
            i (Inclination)                 : 8.29054
            Ω (Longitude of ascending node) : 201.05432
            ω (Argument of perihelion)      : 231.68330
            M (Mean anomaly)                : 41.18871
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 252.44447
            B (Latitude of perihelion)      : -6.49595
            P (Orbital period in years)     : 1.89            
        

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
2026-07-25 00:00 UT   14 38 57.9   -07 43 24     1.767    2.157   98.0   27.8   109   30.2 
2026-07-25 03:13 UT   14 39 03.4   -07 44 03     1.769    2.157   97.9   27.8   109   30.2 
2026-07-26 00:00 UT   14 39 40.0   -07 48 17     1.780    2.158   97.2   27.8   109   30.2 
2026-07-27 00:00 UT   14 40 23.4   -07 53 16     1.793    2.158   96.5   27.9   109   30.2 
2026-07-28 00:00 UT   14 41 08.1   -07 58 19     1.806    2.159   95.7   27.9   109   30.2 
2026-07-29 00:00 UT   14 41 53.9   -08 03 26     1.819    2.159   95.0   27.9   108   30.3 
2026-07-30 00:00 UT   14 42 41.0   -08 08 38     1.832    2.160   94.3   28.0   108   30.3 
2026-07-31 00:00 UT   14 43 29.3   -08 13 54     1.845    2.160   93.5   28.0   108   30.3 
2026-08-01 00:00 UT   14 44 18.7   -08 19 14     1.858    2.160   92.8   28.0   108   30.3 
2026-08-02 00:00 UT   14 45 09.3   -08 24 38     1.871    2.161   92.1   28.0   108   30.3 
2026-08-03 00:00 UT   14 46 01.0   -08 30 06     1.884    2.161   91.4   28.0   108   30.3 
2026-08-04 00:00 UT   14 46 53.8   -08 35 37     1.897    2.161   90.7   28.0   107   30.4 
2026-08-05 00:00 UT   14 47 47.7   -08 41 12     1.910    2.161   89.9   28.0   107   30.4 
2026-08-06 00:00 UT   14 48 42.7   -08 46 50     1.922    2.162   89.2   28.0   107   30.4 
2026-08-07 00:00 UT   14 49 38.7   -08 52 31     1.935    2.162   88.5   28.0   107   30.4 
2026-08-08 00:00 UT   14 50 35.8   -08 58 15     1.948    2.162   87.8   28.0   107   30.4 
2026-08-09 00:00 UT   14 51 34.0   -09 04 02     1.961    2.162   87.1   27.9   107   30.4 
2026-08-10 00:00 UT   14 52 33.2   -09 09 52     1.974    2.162   86.4   27.9   107   30.4 
2026-08-11 00:00 UT   14 53 33.4   -09 15 45     1.986    2.162   85.8   27.9   106   30.5 
2026-08-12 00:00 UT   14 54 34.6   -09 21 40     1.999    2.162   85.1   27.8   106   30.5 
2026-08-13 00:00 UT   14 55 36.7   -09 27 37     2.012    2.162   84.4   27.8   106   30.5 
2026-08-14 00:00 UT   14 56 39.9   -09 33 36     2.024    2.162   83.7   27.8   106   30.5 
2026-08-15 00:00 UT   14 57 44.0   -09 39 38     2.037    2.162   83.0   27.7   106   30.5 
2026-08-16 00:00 UT   14 58 49.1   -09 45 41     2.050    2.162   82.4   27.7   106   30.5 
2026-08-17 00:00 UT   14 59 55.1   -09 51 46     2.062    2.162   81.7   27.6   105   30.5 
2026-08-18 00:00 UT   15 01 02.0   -09 57 53     2.074    2.162   81.1   27.5   105   30.5 
2026-08-19 00:00 UT   15 02 09.8   -10 04 01     2.087    2.162   80.4   27.5   105   30.5 
2026-08-20 00:00 UT   15 03 18.5   -10 10 10     2.099    2.162   79.7   27.4   105   30.6 
2026-08-21 00:00 UT   15 04 28.0   -10 16 21     2.112    2.162   79.1   27.4   105   30.6 
2026-08-22 00:00 UT   15 05 38.4   -10 22 32     2.124    2.161   78.4   27.3   105   30.6 
2026-08-23 00:00 UT   15 06 49.7   -10 28 45     2.136    2.161   77.8   27.2   104   30.6 
2026-08-24 00:00 UT   15 08 01.8   -10 34 58     2.148    2.161   77.1   27.1   104   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.