2021 GT
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	28 Nov 2025	29.2	1.634 AU	1.208 AU	10h10m	+12°44'	95.7°	36.9°

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
2025-11-28 00:00 UT   10 10 11.5   +12 44 59     1.208    1.634   95.7   36.9   291   29.2 
2025-11-28 11:25 UT   10 10 46.4   +12 42 14     1.203    1.633   96.0   36.9   291   29.2 
2025-11-29 00:00 UT   10 11 24.7   +12 39 14     1.197    1.633   96.4   36.9   291   29.2 
2025-11-30 00:00 UT   10 12 36.6   +12 33 35     1.186    1.633   97.1   36.8   291   29.2 
2025-12-01 00:00 UT   10 13 47.3   +12 28 03     1.174    1.633   97.8   36.8   291   29.2 
2025-12-02 00:00 UT   10 14 56.6   +12 22 38     1.163    1.632   98.5   36.7   291   29.2 
2025-12-03 00:00 UT   10 16 04.6   +12 17 21     1.152    1.632   99.2   36.6   291   29.1 
2025-12-04 00:00 UT   10 17 11.1   +12 12 11     1.140    1.631  100.0   36.5   291   29.1 
2025-12-05 00:00 UT   10 18 16.3   +12 07 08     1.129    1.631  100.7   36.4   291   29.1 
2025-12-06 00:00 UT   10 19 20.0   +12 02 14     1.118    1.630  101.4   36.3   291   29.1 
2025-12-07 00:00 UT   10 20 22.3   +11 57 28     1.106    1.629  102.2   36.2   291   29.0 
2025-12-08 00:00 UT   10 21 23.0   +11 52 51     1.095    1.629  102.9   36.1   291   29.0 
2025-12-09 00:00 UT   10 22 22.2   +11 48 23     1.084    1.628  103.7   36.0   291   29.0 
2025-12-10 00:00 UT   10 23 19.7   +11 44 04     1.072    1.627  104.5   35.9   291   28.9 
2025-12-11 00:00 UT   10 24 15.7   +11 39 55     1.061    1.627  105.3   35.7   291   28.9 
2025-12-12 00:00 UT   10 25 09.9   +11 35 56     1.050    1.626  106.0   35.6   291   28.9 
2025-12-13 00:00 UT   10 26 02.4   +11 32 07     1.039    1.625  106.8   35.4   291   28.9 
2025-12-14 00:00 UT   10 26 53.2   +11 28 29     1.027    1.624  107.6   35.3   291   28.8 
2025-12-15 00:00 UT   10 27 42.1   +11 25 02     1.016    1.623  108.4   35.1   291   28.8 
2025-12-16 00:00 UT   10 28 29.2   +11 21 46     1.005    1.622  109.3   35.0   291   28.8 
2025-12-17 00:00 UT   10 29 14.3   +11 18 43     0.993    1.621  110.1   34.8   291   28.7 
2025-12-18 00:00 UT   10 29 57.4   +11 15 51     0.982    1.620  110.9   34.6   291   28.7 
2025-12-19 00:00 UT   10 30 38.6   +11 13 13     0.971    1.619  111.8   34.4   291   28.7 
2025-12-20 00:00 UT   10 31 17.6   +11 10 47     0.960    1.617  112.6   34.2   291   28.6 
2025-12-21 00:00 UT   10 31 54.6   +11 08 34     0.949    1.616  113.5   33.9   291   28.6 
2025-12-22 00:00 UT   10 32 29.3   +11 06 35     0.938    1.615  114.4   33.7   291   28.6 
2025-12-23 00:00 UT   10 33 01.8   +11 04 51     0.926    1.614  115.2   33.5   291   28.5 
2025-12-24 00:00 UT   10 33 32.1   +11 03 21     0.915    1.612  116.1   33.2   291   28.5 
2025-12-25 00:00 UT   10 33 59.9   +11 02 05     0.904    1.611  117.0   32.9   291   28.5 
2025-12-26 00:00 UT   10 34 25.4   +11 01 05     0.894    1.609  118.0   32.7   291   28.4 
2025-12-27 00:00 UT   10 34 48.4   +11 00 21     0.883    1.608  118.9   32.4   291   28.4 
2025-12-28 00:00 UT   10 35 08.9   +10 59 52     0.872    1.606  119.8   32.1   291   28.4 

    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.