2021 DT
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	21 Aug 2026	26.8	1.623 AU	0.775 AU	01h08m	+04°37'	130.1°	28.5°

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 DT are:

            e (Eccentricity)                : 0.3428554
            a (Semimajor axis)              : 1.3830938
            i (Inclination)                 : 4.90806
            Ω (Longitude of ascending node) : 2.60830
            ω (Argument of perihelion)      : 210.08091
            M (Mean anomaly)                : 297.95131
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 32.59801
            B (Latitude of perihelion)      : -2.45778
            P (Orbital period in years)     : 1.63            
        

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
2026-08-21 00:00 UT   01 08 15.6   +04 37 43     0.775    1.623  130.1   28.5   250   26.8 
2026-08-21 04:07 UT   01 08 07.3   +04 37 28     0.774    1.623  130.3   28.4   250   26.8 
2026-08-22 00:00 UT   01 07 25.9   +04 36 08     0.771    1.626  131.2   27.9   250   26.8 
2026-08-23 00:00 UT   01 06 32.8   +04 34 18     0.767    1.630  132.4   27.3   250   26.7 
2026-08-24 00:00 UT   01 05 36.6   +04 32 10     0.763    1.633  133.6   26.6   250   26.7 
2026-08-25 00:00 UT   01 04 37.0   +04 29 47     0.759    1.637  134.8   26.0   250   26.7 
2026-08-26 00:00 UT   01 03 34.3   +04 27 06     0.756    1.641  136.0   25.3   250   26.7 
2026-08-27 00:00 UT   01 02 28.3   +04 24 10     0.752    1.644  137.3   24.6   250   26.6 
2026-08-28 00:00 UT   01 01 19.1   +04 20 57     0.749    1.648  138.5   24.0   250   26.6 
2026-08-29 00:00 UT   01 00 06.9   +04 17 28     0.746    1.651  139.8   23.3   250   26.6 
2026-08-30 00:00 UT   00 58 51.5   +04 13 43     0.743    1.655  141.1   22.5   250   26.6 
2026-08-31 00:00 UT   00 57 33.1   +04 09 42     0.740    1.658  142.4   21.8   250   26.5 
2026-09-01 00:00 UT   00 56 11.6   +04 05 26     0.737    1.661  143.7   21.1   250   26.5 
2026-09-02 00:00 UT   00 54 47.3   +04 00 54     0.734    1.665  145.0   20.3   250   26.5 
2026-09-03 00:00 UT   00 53 20.1   +03 56 06     0.732    1.668  146.3   19.6   250   26.5 
2026-09-04 00:00 UT   00 51 50.1   +03 51 04     0.730    1.671  147.7   18.8   250   26.4 
2026-09-05 00:00 UT   00 50 17.4   +03 45 48     0.728    1.675  149.0   18.0   250   26.4 
2026-09-06 00:00 UT   00 48 42.2   +03 40 17     0.726    1.678  150.4   17.3   250   26.4 
2026-09-07 00:00 UT   00 47 04.4   +03 34 32     0.724    1.681  151.8   16.5   250   26.4 
2026-09-08 00:00 UT   00 45 24.3   +03 28 34     0.723    1.684  153.2   15.7   250   26.3 
2026-09-09 00:00 UT   00 43 41.9   +03 22 24     0.721    1.688  154.6   14.8   250   26.3 
2026-09-10 00:00 UT   00 41 57.4   +03 16 02     0.720    1.691  156.0   14.0   250   26.3 
2026-09-11 00:00 UT   00 40 11.0   +03 09 28     0.719    1.694  157.4   13.2   250   26.2 
2026-09-12 00:00 UT   00 38 22.7   +03 02 45     0.719    1.697  158.9   12.4   249   26.2 
2026-09-13 00:00 UT   00 36 32.8   +02 55 51     0.718    1.700  160.3   11.5   249   26.2 

    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.