2021 TX2
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	21 Dec 2025	30.9	2.970 AU	3.931 AU	17h10m	-21°08'	10.6°	3.5°

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 TX2 are:

            e (Eccentricity)                : 0.5463569
            a (Semimajor axis)              : 1.9246509
            i (Inclination)                 : 3.11235
            Ω (Longitude of ascending node) : 204.77454
            ω (Argument of perihelion)      : 226.87988
            M (Mean anomaly)                : 178.84184
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 251.61222
            B (Latitude of perihelion)      : -2.27125
            P (Orbital period in years)     : 2.67            
        

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
2025-12-21 00:00 UT   17 10 49.7   -21 08 27     3.931    2.970   10.6    3.5   285   30.9 
2025-12-21 21:52 UT   17 12 11.2   -21 09 48     3.928    2.969   11.2    3.7   284   30.9 
2025-12-22 00:00 UT   17 12 19.2   -21 09 55     3.928    2.969   11.3    3.7   284   30.9 
2025-12-23 00:00 UT   17 13 48.7   -21 11 20     3.924    2.969   11.9    3.9   283   30.9 
2025-12-24 00:00 UT   17 15 18.1   -21 12 41     3.920    2.968   12.6    4.1   283   30.9 
2025-12-25 00:00 UT   17 16 47.6   -21 13 58     3.916    2.967   13.3    4.4   282   30.9 
2025-12-26 00:00 UT   17 18 16.9   -21 15 12     3.912    2.967   13.9    4.6   282   30.9 
2025-12-27 00:00 UT   17 19 46.3   -21 16 22     3.908    2.966   14.6    4.8   281   30.9 
2025-12-28 00:00 UT   17 21 15.6   -21 17 29     3.903    2.966   15.3    5.0   281   30.9 
2025-12-29 00:00 UT   17 22 44.8   -21 18 32     3.898    2.965   15.9    5.2   280   31.0 
2025-12-30 00:00 UT   17 24 13.9   -21 19 32     3.894    2.964   16.6    5.4   280   31.0 
2025-12-31 00:00 UT   17 25 43.0   -21 20 28     3.888    2.964   17.3    5.7   279   31.0 
2026-01-01 00:00 UT   17 27 12.0   -21 21 21     3.883    2.963   17.9    5.9   279   31.0 
2026-01-02 00:00 UT   17 28 41.0   -21 22 10     3.878    2.962   18.6    6.1   279   31.0 
2026-01-03 00:00 UT   17 30 09.8   -21 22 56     3.872    2.962   19.3    6.3   278   31.0 
2026-01-04 00:00 UT   17 31 38.6   -21 23 38     3.866    2.961   20.0    6.5   278   31.0 
2026-01-05 00:00 UT   17 33 07.2   -21 24 16     3.860    2.960   20.6    6.7   278   31.0 
2026-01-06 00:00 UT   17 34 35.8   -21 24 51     3.854    2.959   21.3    6.9   277   31.0 
2026-01-07 00:00 UT   17 36 04.3   -21 25 23     3.848    2.959   22.0    7.1   277   31.0 
2026-01-08 00:00 UT   17 37 32.7   -21 25 51     3.841    2.958   22.6    7.4   277   31.0 
2026-01-09 00:00 UT   17 39 00.9   -21 26 15     3.834    2.957   23.3    7.6   277   31.0 
2026-01-10 00:00 UT   17 40 29.0   -21 26 36     3.827    2.956   24.0    7.8   276   31.0 
2026-01-11 00:00 UT   17 41 57.0   -21 26 53     3.820    2.955   24.7    8.0   276   31.0 
2026-01-12 00:00 UT   17 43 24.9   -21 27 07     3.813    2.954   25.3    8.2   276   31.0 
2026-01-13 00:00 UT   17 44 52.6   -21 27 18     3.806    2.953   26.0    8.4   275   31.0 
2026-01-14 00:00 UT   17 46 20.2   -21 27 24     3.798    2.953   26.7    8.6   275   31.0 

    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.