2021 DL
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	29 Mar 2026	29.5	1.908 AU	2.401 AU	21h27m	-17°52'	49.4°	23.4°

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)                : 0.4099739
            a (Semimajor axis)              : 1.7260319
            i (Inclination)                 : 5.15536
            Ω (Longitude of ascending node) : 337.80607
            ω (Argument of perihelion)      : 190.20405
            M (Mean anomaly)                : 26.52781
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 347.96970
            B (Latitude of perihelion)      : -0.91210
            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
2026-03-29 00:00 UT   21 27 53.2   -17 52 39     2.401    1.908   49.4   23.4   249   29.5 
2026-03-29 03:09 UT   21 28 07.7   -17 51 28     2.400    1.908   49.4   23.4   249   29.5 
2026-03-30 00:00 UT   21 29 43.5   -17 43 37     2.396    1.912   49.9   23.5   249   29.5 
2026-03-31 00:00 UT   21 31 33.0   -17 34 34     2.392    1.917   50.4   23.7   249   29.6 
2026-04-01 00:00 UT   21 33 21.6   -17 25 33     2.387    1.922   50.9   23.8   249   29.6 
2026-04-02 00:00 UT   21 35 09.3   -17 16 31     2.383    1.926   51.5   23.9   249   29.6 
2026-04-03 00:00 UT   21 36 56.1   -17 07 30     2.378    1.931   52.0   24.1   249   29.6 
2026-04-04 00:00 UT   21 38 42.1   -16 58 29     2.373    1.935   52.5   24.2   249   29.6 
2026-04-05 00:00 UT   21 40 27.2   -16 49 29     2.368    1.940   53.1   24.3   249   29.6 
2026-04-06 00:00 UT   21 42 11.4   -16 40 30     2.363    1.944   53.6   24.5   249   29.6 
2026-04-07 00:00 UT   21 43 54.8   -16 31 31     2.358    1.949   54.2   24.6   249   29.6 
2026-04-08 00:00 UT   21 45 37.3   -16 22 34     2.353    1.954   54.7   24.7   249   29.6 
2026-04-09 00:00 UT   21 47 18.9   -16 13 38     2.347    1.958   55.3   24.9   249   29.6 
2026-04-10 00:00 UT   21 48 59.7   -16 04 42     2.342    1.962   55.8   25.0   249   29.6 
2026-04-11 00:00 UT   21 50 39.6   -15 55 49     2.336    1.967   56.4   25.1   249   29.6 
2026-04-12 00:00 UT   21 52 18.6   -15 46 56     2.330    1.971   56.9   25.2   248   29.6 
2026-04-13 00:00 UT   21 53 56.7   -15 38 05     2.325    1.976   57.5   25.3   248   29.6 
2026-04-14 00:00 UT   21 55 33.9   -15 29 16     2.319    1.980   58.0   25.5   248   29.6 
2026-04-15 00:00 UT   21 57 10.3   -15 20 29     2.313    1.984   58.6   25.6   248   29.6 
2026-04-16 00:00 UT   21 58 45.8   -15 11 43     2.306    1.989   59.2   25.7   248   29.6 
2026-04-17 00:00 UT   22 00 20.4   -15 02 60     2.300    1.993   59.7   25.8   248   29.6 

    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.