2021 DL
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	11 Jul 2026	28.9	2.283 AU	1.556 AU	23h06m	-07°52'	123.8°	21.7°

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
2026-07-11 00:00 UT   23 06 18.1   -07 52 17     1.556    2.283  123.8   21.7   249   28.9 
2026-07-11 01:22 UT   23 06 17.1   -07 52 20     1.555    2.283  123.8   21.7   249   28.9 
2026-07-12 00:00 UT   23 05 59.1   -07 53 12     1.547    2.285  124.8   21.4   249   28.9 
2026-07-13 00:00 UT   23 05 38.0   -07 54 17     1.539    2.288  125.8   21.1   249   28.9 
2026-07-14 00:00 UT   23 05 15.0   -07 55 34     1.531    2.290  126.9   20.8   249   28.9 
2026-07-15 00:00 UT   23 04 49.9   -07 57 03     1.523    2.293  127.9   20.5   249   28.9 
2026-07-16 00:00 UT   23 04 22.7   -07 58 42     1.515    2.295  129.0   20.1   249   28.8 
2026-07-17 00:00 UT   23 03 53.5   -08 00 32     1.507    2.297  130.1   19.8   249   28.8 
2026-07-18 00:00 UT   23 03 22.3   -08 02 33     1.500    2.300  131.2   19.4   249   28.8 
2026-07-19 00:00 UT   23 02 49.1   -08 04 45     1.492    2.302  132.3   19.1   249   28.8 
2026-07-20 00:00 UT   23 02 13.8   -08 07 08     1.485    2.304  133.4   18.7   249   28.8 
2026-07-21 00:00 UT   23 01 36.5   -08 09 41     1.478    2.307  134.5   18.3   249   28.7 
2026-07-22 00:00 UT   23 00 57.2   -08 12 25     1.471    2.309  135.6   17.9   249   28.7 
2026-07-23 00:00 UT   23 00 15.9   -08 15 20     1.464    2.311  136.7   17.5   249   28.7 
2026-07-24 00:00 UT   22 59 32.7   -08 18 24     1.457    2.313  137.9   17.1   249   28.7 
2026-07-25 00:00 UT   22 58 47.4   -08 21 39     1.451    2.316  139.0   16.7   249   28.7 
2026-07-26 00:00 UT   22 58 00.2   -08 25 04     1.445    2.318  140.2   16.3   249   28.6 
2026-07-27 00:00 UT   22 57 11.1   -08 28 38     1.439    2.320  141.3   15.9   250   28.6 
2026-07-28 00:00 UT   22 56 20.1   -08 32 22     1.433    2.322  142.5   15.4   250   28.6 
2026-07-29 00:00 UT   22 55 27.2   -08 36 16     1.427    2.324  143.7   15.0   250   28.6 
2026-07-30 00:00 UT   22 54 32.4   -08 40 18     1.422    2.326  144.9   14.5   250   28.5 
2026-07-31 00:00 UT   22 53 35.8   -08 44 29     1.416    2.329  146.1   14.1   250   28.5 
2026-08-01 00:00 UT   22 52 37.4   -08 48 50     1.411    2.331  147.3   13.6   250   28.5 
2026-08-02 00:00 UT   22 51 37.2   -08 53 18     1.406    2.333  148.5   13.1   250   28.5 
2026-08-03 00:00 UT   22 50 35.4   -08 57 55     1.402    2.335  149.7   12.7   250   28.5 
2026-08-04 00:00 UT   22 49 31.8   -09 02 39     1.397    2.337  150.9   12.2   250   28.4 
2026-08-05 00:00 UT   22 48 26.6   -09 07 31     1.393    2.339  152.2   11.7   250   28.4 
2026-08-06 00:00 UT   22 47 19.8   -09 12 30     1.389    2.341  153.4   11.2   251   28.4 
2026-08-07 00:00 UT   22 46 11.5   -09 17 36     1.385    2.343  154.7   10.7   251   28.4 
2026-08-08 00:00 UT   22 45 01.7   -09 22 48     1.382    2.345  155.9   10.2   251   28.3 
2026-08-09 00:00 UT   22 43 50.5   -09 28 07     1.379    2.347  157.2    9.6   251   28.3 
2026-08-10 00:00 UT   22 42 37.9   -09 33 31     1.376    2.348  158.5    9.1   251   28.3 

    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.