2021 DL
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	19 Sep 2026	28.6	2.407 AU	1.484 AU	21h51m	-12°58'	150.0°	12.1°

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 DL are:

            e (Eccentricity)                : 0.4100161
            a (Semimajor axis)              : 1.7261570
            i (Inclination)                 : 5.15554
            Ω (Longitude of ascending node) : 337.80297
            ω (Argument of perihelion)      : 190.21548
            M (Mean anomaly)                : 113.43638
            Epoch                           : 2026 Jun 09

            L (Longitude of perihelion)     : 347.97799
            B (Latitude of perihelion)      : -0.91314
            P (Orbital period in years)     : 2.27            
        

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
2026-09-19 00:00 UT   21 51 46.7   -12 58 05     1.484    2.407  150.0   12.1    70   28.6 
2026-09-19 03:18 UT   21 51 38.8   -12 58 31     1.485    2.407  149.8   12.1    70   28.6 
2026-09-20 00:00 UT   21 50 50.3   -13 01 06     1.492    2.408  148.8   12.5    70   28.7 
2026-09-21 00:00 UT   21 49 55.9   -13 03 58     1.501    2.409  147.6   12.9    70   28.7 
2026-09-22 00:00 UT   21 49 03.3   -13 06 41     1.509    2.410  146.4   13.3    71   28.7 
2026-09-23 00:00 UT   21 48 12.6   -13 09 14     1.518    2.411  145.2   13.8    71   28.7 
2026-09-24 00:00 UT   21 47 23.9   -13 11 38     1.527    2.412  144.0   14.2    71   28.8 
2026-09-25 00:00 UT   21 46 37.1   -13 13 52     1.536    2.413  142.8   14.5    71   28.8 
2026-09-26 00:00 UT   21 45 52.2   -13 15 57     1.546    2.414  141.7   14.9    71   28.8 
2026-09-27 00:00 UT   21 45 09.4   -13 17 53     1.556    2.415  140.5   15.3    71   28.8 
2026-09-28 00:00 UT   21 44 28.6   -13 19 39     1.565    2.416  139.4   15.7    71   28.9 
2026-09-29 00:00 UT   21 43 49.8   -13 21 16     1.575    2.417  138.2   16.0    71   28.9 
2026-09-30 00:00 UT   21 43 12.9   -13 22 44     1.586    2.417  137.1   16.4    71   28.9 
2026-10-01 00:00 UT   21 42 38.1   -13 24 03     1.596    2.418  136.0   16.7    71   29.0 
2026-10-02 00:00 UT   21 42 05.4   -13 25 13     1.606    2.419  134.9   17.1    71   29.0 
2026-10-03 00:00 UT   21 41 34.6   -13 26 14     1.617    2.420  133.7   17.4    71   29.0 
2026-10-04 00:00 UT   21 41 05.9   -13 27 05     1.628    2.421  132.6   17.7    71   29.0 
2026-10-05 00:00 UT   21 40 39.2   -13 27 48     1.639    2.421  131.6   18.0    71   29.1 
2026-10-06 00:00 UT   21 40 14.5   -13 28 22     1.650    2.422  130.5   18.3    71   29.1 
2026-10-07 00:00 UT   21 39 51.8   -13 28 47     1.662    2.423  129.4   18.6    71   29.1 
2026-10-08 00:00 UT   21 39 31.1   -13 29 03     1.673    2.423  128.3   18.9    71   29.1 
2026-10-09 00:00 UT   21 39 12.5   -13 29 10     1.685    2.424  127.3   19.1    71   29.2 
2026-10-10 00:00 UT   21 38 55.8   -13 29 08     1.697    2.425  126.2   19.4    71   29.2 
2026-10-11 00:00 UT   21 38 41.2   -13 28 58     1.708    2.425  125.2   19.7    71   29.2 
2026-10-12 00:00 UT   21 38 28.5   -13 28 39     1.721    2.426  124.1   19.9    71   29.2 
2026-10-13 00:00 UT   21 38 17.8   -13 28 12     1.733    2.426  123.1   20.2    71   29.3 
2026-10-14 00:00 UT   21 38 09.0   -13 27 37     1.745    2.427  122.1   20.4    71   29.3 
2026-10-15 00:00 UT   21 38 02.1   -13 26 53     1.757    2.427  121.1   20.6    71   29.3 
2026-10-16 00:00 UT   21 37 57.1   -13 26 00     1.770    2.428  120.1   20.8    71   29.3 
2026-10-17 00:00 UT   21 37 54.1   -13 25 00     1.782    2.428  119.1   21.0    71   29.3 
2026-10-18 00:00 UT   21 37 52.8   -13 23 52     1.795    2.429  118.1   21.2    71   29.4 
2026-10-19 00:00 UT   21 37 53.5   -13 22 35     1.808    2.429  117.1   21.4    71   29.4 

    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.