2021 TJ12
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	13 Jun 2026	29.2	2.112 AU	1.261 AU	14h34m	-06°21'	135.9°	19.5°

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
2026-06-13 00:00 UT   14 34 06.4   -06 21 12     1.261    2.112  135.9   19.5   117   29.2 
2026-06-13 01:54 UT   14 34 03.7   -06 21 02     1.262    2.112  135.8   19.6   117   29.2 
2026-06-14 00:00 UT   14 33 32.4   -06 19 11     1.271    2.114  134.8   19.9   117   29.2 
2026-06-15 00:00 UT   14 33 00.7   -06 17 25     1.281    2.115  133.8   20.3   116   29.2 
2026-06-16 00:00 UT   14 32 31.2   -06 15 54     1.292    2.117  132.7   20.6   116   29.3 
2026-06-17 00:00 UT   14 32 04.1   -06 14 38     1.302    2.118  131.7   21.0   116   29.3 
2026-06-18 00:00 UT   14 31 39.2   -06 13 36     1.313    2.120  130.6   21.3   116   29.3 
2026-06-19 00:00 UT   14 31 16.5   -06 12 47     1.324    2.121  129.6   21.7   115   29.3 
2026-06-20 00:00 UT   14 30 56.1   -06 12 13     1.335    2.123  128.6   22.0   115   29.4 
2026-06-21 00:00 UT   14 30 37.9   -06 11 53     1.346    2.124  127.6   22.3   115   29.4 
2026-06-22 00:00 UT   14 30 21.8   -06 11 45     1.357    2.126  126.6   22.6   115   29.4 
2026-06-23 00:00 UT   14 30 07.9   -06 11 51     1.369    2.127  125.6   22.9   114   29.5 
2026-06-24 00:00 UT   14 29 56.2   -06 12 09     1.380    2.128  124.6   23.1   114   29.5 
2026-06-25 00:00 UT   14 29 46.5   -06 12 40     1.392    2.130  123.6   23.4   114   29.5 
2026-06-26 00:00 UT   14 29 39.0   -06 13 23     1.403    2.131  122.7   23.7   114   29.5 
2026-06-27 00:00 UT   14 29 33.4   -06 14 18     1.415    2.132  121.7   23.9   114   29.6 
2026-06-28 00:00 UT   14 29 29.9   -06 15 24     1.427    2.134  120.8   24.2   113   29.6 
2026-06-29 00:00 UT   14 29 28.4   -06 16 42     1.439    2.135  119.8   24.4   113   29.6 
2026-06-30 00:00 UT   14 29 28.8   -06 18 11     1.451    2.136  118.9   24.6   113   29.6 
2026-07-01 00:00 UT   14 29 31.2   -06 19 51     1.463    2.137  118.0   24.8   113   29.7 
2026-07-02 00:00 UT   14 29 35.4   -06 21 41     1.475    2.138  117.1   25.0   113   29.7 
2026-07-03 00:00 UT   14 29 41.6   -06 23 41     1.487    2.139  116.2   25.2   113   29.7 
2026-07-04 00:00 UT   14 29 49.5   -06 25 52     1.499    2.141  115.3   25.4   112   29.7 
2026-07-05 00:00 UT   14 29 59.3   -06 28 12     1.512    2.142  114.4   25.6   112   29.8 
2026-07-06 00:00 UT   14 30 10.9   -06 30 42     1.524    2.143  113.5   25.8   112   29.8 
2026-07-07 00:00 UT   14 30 24.2   -06 33 21     1.536    2.144  112.6   26.0   112   29.8 
2026-07-08 00:00 UT   14 30 39.3   -06 36 10     1.549    2.145  111.7   26.1   112   29.8 
2026-07-09 00:00 UT   14 30 56.1   -06 39 07     1.561    2.146  110.9   26.3   111   29.9 
2026-07-10 00:00 UT   14 31 14.6   -06 42 13     1.574    2.146  110.0   26.4   111   29.9 
2026-07-11 00:00 UT   14 31 34.7   -06 45 27     1.587    2.147  109.2   26.6   111   29.9 
2026-07-12 00:00 UT   14 31 56.5   -06 48 50     1.599    2.148  108.3   26.7   111   29.9 
2026-07-13 00:00 UT   14 32 19.9   -06 52 20     1.612    2.149  107.5   26.8   111   30.0 

    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.