2021 TJ12
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	30 May 2026	28.7	2.087 AU	1.137 AU	14h46m	-07°16'	151.9°	13.2°

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
2026-05-30 00:00 UT   14 46 03.4   -07 16 49     1.137    2.087  151.9   13.2   123   28.7 
2026-05-30 00:02 UT   14 46 03.3   -07 16 49     1.137    2.087  151.9   13.2   123   28.7 
2026-05-31 00:00 UT   14 44 57.6   -07 11 07     1.145    2.089  150.7   13.7   123   28.7 
2026-06-01 00:00 UT   14 43 54.0   -07 05 41     1.152    2.091  149.5   14.2   122   28.8 
2026-06-02 00:00 UT   14 42 52.6   -07 00 31     1.160    2.092  148.4   14.7   122   28.8 
2026-06-03 00:00 UT   14 41 53.4   -06 55 37     1.169    2.094  147.2   15.2   121   28.8 
2026-06-04 00:00 UT   14 40 56.4   -06 50 59     1.177    2.096  146.0   15.7   120   28.9 
2026-06-05 00:00 UT   14 40 01.7   -06 46 37     1.186    2.098  144.9   16.2   120   28.9 
2026-06-06 00:00 UT   14 39 09.3   -06 42 31     1.194    2.100  143.7   16.6   120   28.9 
2026-06-07 00:00 UT   14 38 19.1   -06 38 41     1.203    2.102  142.6   17.1   119   29.0 
2026-06-08 00:00 UT   14 37 31.2   -06 35 07     1.213    2.104  141.4   17.5   119   29.0 
2026-06-09 00:00 UT   14 36 45.7   -06 31 49     1.222    2.105  140.3   17.9   118   29.0 
2026-06-10 00:00 UT   14 36 02.4   -06 28 46     1.231    2.107  139.2   18.3   118   29.1 
2026-06-11 00:00 UT   14 35 21.4   -06 25 59     1.241    2.109  138.1   18.8   118   29.1 
2026-06-12 00:00 UT   14 34 42.8   -06 23 28     1.251    2.110  137.0   19.2   117   29.1 
2026-06-13 00:00 UT   14 34 06.4   -06 21 12     1.261    2.112  135.9   19.5   117   29.2 
2026-06-14 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 

    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.