2020 TY1
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	18 Oct 2025	24.6	1.530 AU	0.817 AU	21h40m	-23°32'	114.7°	36.3°

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 2020 TY1 are:

            e (Eccentricity)                : 0.5409488
            a (Semimajor axis)              : 1.8741547
            i (Inclination)                 : 5.87417
            Ω (Longitude of ascending node) : 50.94417
            ω (Argument of perihelion)      : 49.03028
            M (Mean anomaly)                : 255.25405
            Epoch                           : 2025 May 05

            L (Longitude of perihelion)     : 99.82506
            B (Latitude of perihelion)      : 4.43198
            P (Orbital period in years)     : 2.57            
        

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
2025-10-18 00:00 UT   21 40 05.4   -23 32 30     0.817    1.530  114.7   36.3    67   24.6 
2025-10-18 09:39 UT   21 39 53.0   -23 30 28     0.817    1.526  114.3   36.5    67   24.6 
2025-10-19 00:00 UT   21 39 35.7   -23 27 20     0.818    1.522  113.6   36.9    67   24.7 
2025-10-20 00:00 UT   21 39 09.5   -23 21 50     0.820    1.514  112.6   37.4    67   24.7 
2025-10-21 00:00 UT   21 38 46.7   -23 16 02     0.822    1.506  111.6   37.9    67   24.7 
2025-10-22 00:00 UT   21 38 27.4   -23 09 57     0.823    1.498  110.6   38.5    68   24.7 
2025-10-23 00:00 UT   21 38 11.6   -23 03 34     0.825    1.490  109.6   39.0    68   24.7 
2025-10-24 00:00 UT   21 37 59.2   -22 56 53     0.827    1.482  108.6   39.5    68   24.7 
2025-10-25 00:00 UT   21 37 50.1   -22 49 56     0.828    1.474  107.6   40.0    68   24.7 
2025-10-26 00:00 UT   21 37 44.5   -22 42 42     0.830    1.466  106.6   40.5    68   24.7 
2025-10-27 00:00 UT   21 37 42.2   -22 35 11     0.832    1.458  105.7   41.0    69   24.7 
2025-10-28 00:00 UT   21 37 43.2   -22 27 25     0.833    1.450  104.8   41.5    69   24.7 
2025-10-29 00:00 UT   21 37 47.4   -22 19 23     0.835    1.442  103.8   42.0    69   24.7 
2025-10-30 00:00 UT   21 37 54.9   -22 11 05     0.837    1.434  102.9   42.4    69   24.7 
2025-10-31 00:00 UT   21 38 05.6   -22 02 32     0.838    1.426  102.0   42.9    69   24.7 
2025-11-01 00:00 UT   21 38 19.5   -21 53 44     0.840    1.418  101.1   43.4    69   24.7 
2025-11-02 00:00 UT   21 38 36.4   -21 44 41     0.841    1.410  100.2   43.8    70   24.7 
2025-11-03 00:00 UT   21 38 56.4   -21 35 24     0.843    1.402   99.4   44.3    70   24.7 
2025-11-04 00:00 UT   21 39 19.5   -21 25 52     0.844    1.394   98.5   44.7    70   24.7 
2025-11-05 00:00 UT   21 39 45.5   -21 16 06     0.845    1.386   97.7   45.1    70   24.7 
2025-11-06 00:00 UT   21 40 14.4   -21 06 06     0.847    1.378   96.8   45.6    70   24.8 
2025-11-07 00:00 UT   21 40 46.2   -20 55 52     0.848    1.370   96.0   46.0    70   24.8 
2025-11-08 00:00 UT   21 41 20.9   -20 45 24     0.849    1.362   95.2   46.4    70   24.8 
2025-11-09 00:00 UT   21 41 58.4   -20 34 42     0.850    1.354   94.4   46.8    70   24.8 
2025-11-10 00:00 UT   21 42 38.6   -20 23 46     0.851    1.346   93.6   47.3    70   24.8 
2025-11-11 00:00 UT   21 43 21.6   -20 12 36     0.852    1.338   92.9   47.7    70   24.8 
2025-11-12 00:00 UT   21 44 07.2   -20 01 13     0.853    1.330   92.1   48.1    70   24.8 
2025-11-13 00:00 UT   21 44 55.6   -19 49 35     0.853    1.322   91.3   48.5    70   24.8 
2025-11-14 00:00 UT   21 45 46.5   -19 37 44     0.854    1.314   90.6   48.9    70   24.8 
2025-11-15 00:00 UT   21 46 40.1   -19 25 38     0.855    1.305   89.8   49.3    71   24.8 
2025-11-16 00:00 UT   21 47 36.2   -19 13 19     0.855    1.297   89.1   49.7    71   24.8 
2025-11-17 00:00 UT   21 48 34.8   -19 00 46     0.856    1.289   88.4   50.1    71   24.8 

    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.