2021 GT
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	30 Dec 2025	28.3	1.603 AU	0.850 AU	10h35m	+10°59'	121.7°	31.5°

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 GT are:

            e (Eccentricity)                : 0.3918473
            a (Semimajor axis)              : 1.1742119
            i (Inclination)                 : 1.05752
            Ω (Longitude of ascending node) : 42.15401
            ω (Argument of perihelion)      : 248.67816
            M (Mean anomaly)                : 179.19172
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 110.82886
            B (Latitude of perihelion)      : -0.98513
            P (Orbital period in years)     : 1.27            
        

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
2025-12-30 00:00 UT   10 35 42.0   +10 59 45     0.850    1.603  121.7   31.5   291   28.3 
2025-12-30 15:10 UT   10 35 50.2   +10 59 57     0.844    1.602  122.3   31.2   291   28.3 
2025-12-31 00:00 UT   10 35 54.5   +11 00 07     0.840    1.601  122.7   31.1   291   28.2 
2026-01-01 00:00 UT   10 36 04.3   +11 00 47     0.829    1.600  123.7   30.8   290   28.2 
2026-01-02 00:00 UT   10 36 11.2   +11 01 44     0.819    1.598  124.7   30.4   290   28.2 
2026-01-03 00:00 UT   10 36 15.1   +11 02 60     0.808    1.596  125.7   30.0   290   28.1 
2026-01-04 00:00 UT   10 36 16.1   +11 04 35     0.798    1.594  126.7   29.6   290   28.1 
2026-01-05 00:00 UT   10 36 13.9   +11 06 29     0.788    1.592  127.7   29.2   290   28.0 
2026-01-06 00:00 UT   10 36 08.6   +11 08 43     0.777    1.590  128.8   28.8   290   28.0 
2026-01-07 00:00 UT   10 36 00.1   +11 11 17     0.767    1.588  129.9   28.4   290   28.0 
2026-01-08 00:00 UT   10 35 48.1   +11 14 13     0.757    1.586  130.9   27.9   290   27.9 
2026-01-09 00:00 UT   10 35 32.8   +11 17 29     0.747    1.584  132.0   27.5   290   27.9 
2026-01-10 00:00 UT   10 35 13.9   +11 21 07     0.738    1.582  133.2   27.0   290   27.8 
2026-01-11 00:00 UT   10 34 51.5   +11 25 07     0.728    1.580  134.3   26.5   290   27.8 
2026-01-12 00:00 UT   10 34 25.3   +11 29 29     0.718    1.578  135.4   25.9   289   27.7 
2026-01-13 00:00 UT   10 33 55.3   +11 34 14     0.709    1.576  136.6   25.4   289   27.7 
2026-01-14 00:00 UT   10 33 21.5   +11 39 22     0.699    1.573  137.8   24.9   289   27.6 
2026-01-15 00:00 UT   10 32 43.8   +11 44 54     0.690    1.571  138.9   24.3   289   27.6 
2026-01-16 00:00 UT   10 32 02.0   +11 50 49     0.681    1.569  140.2   23.7   289   27.5 
2026-01-17 00:00 UT   10 31 16.1   +11 57 09     0.672    1.566  141.4   23.1   289   27.5 
2026-01-18 00:00 UT   10 30 26.0   +12 03 52     0.663    1.564  142.6   22.5   288   27.4 
2026-01-19 00:00 UT   10 29 31.7   +12 10 59     0.655    1.561  143.9   21.8   288   27.4 
2026-01-20 00:00 UT   10 28 33.0   +12 18 31     0.646    1.559  145.2   21.1   288   27.3 
2026-01-21 00:00 UT   10 27 30.0   +12 26 27     0.638    1.556  146.5   20.4   288   27.3 
2026-01-22 00:00 UT   10 26 22.5   +12 34 46     0.629    1.553  147.8   19.7   287   27.2 
2026-01-23 00:00 UT   10 25 10.6   +12 43 30     0.621    1.551  149.1   19.0   287   27.2 
2026-01-24 00:00 UT   10 23 54.2   +12 52 38     0.613    1.548  150.5   18.3   287   27.1 
2026-01-25 00:00 UT   10 22 33.2   +13 02 08     0.606    1.545  151.9   17.5   286   27.0 
2026-01-26 00:00 UT   10 21 07.6   +13 12 02     0.598    1.542  153.2   16.7   286   27.0 
2026-01-27 00:00 UT   10 19 37.5   +13 22 18     0.591    1.540  154.7   15.9   285   26.9 
2026-01-28 00:00 UT   10 18 02.8   +13 32 56     0.584    1.537  156.1   15.1   285   26.9 
2026-01-29 00:00 UT   10 16 23.4   +13 43 55     0.577    1.534  157.5   14.2   284   26.8 

    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.