2021 DL
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	22 Aug 2026	27.9	2.369 AU	1.361 AU	22h26m	-10°42'	174.0°	2.6°

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
2026-08-22 00:00 UT   22 26 49.3   -10 42 45     1.361    2.369  174.0    2.6   257   27.9 
2026-08-22 02:46 UT   22 26 39.8   -10 43 26     1.361    2.370  174.2    2.5   258   27.9 
2026-08-23 00:00 UT   22 25 26.4   -10 48 38     1.362    2.371  175.3    2.0   259   27.9 
2026-08-24 00:00 UT   22 24 03.3   -10 54 30     1.363    2.373  176.6    1.5   263   27.9 
2026-08-25 00:00 UT   22 22 40.2   -11 00 20     1.364    2.374  177.9    0.9   271   27.8 
2026-08-26 00:00 UT   22 21 17.0   -11 06 08     1.365    2.376  179.0    0.4   299   27.8 
2026-08-27 00:00 UT   22 19 54.0   -11 11 53     1.367    2.377  179.0    0.4    20   27.8 
2026-08-28 00:00 UT   22 18 31.1   -11 17 35     1.369    2.379  177.9    0.9    49   27.8 
2026-08-29 00:00 UT   22 17 08.5   -11 23 14     1.371    2.380  176.6    1.4    57   27.9 
2026-08-30 00:00 UT   22 15 46.3   -11 28 48     1.374    2.382  175.4    2.0    61   27.9 
2026-08-31 00:00 UT   22 14 24.6   -11 34 19     1.377    2.383  174.1    2.5    63   28.0 
2026-09-01 00:00 UT   22 13 03.4   -11 39 45     1.380    2.385  172.8    3.1    65   28.0 
2026-09-02 00:00 UT   22 11 42.9   -11 45 05     1.383    2.386  171.5    3.6    66   28.1 
2026-09-03 00:00 UT   22 10 23.0   -11 50 21     1.387    2.387  170.2    4.1    66   28.1 
2026-09-04 00:00 UT   22 09 04.0   -11 55 30     1.391    2.389  168.9    4.7    67   28.1 
2026-09-05 00:00 UT   22 07 45.9   -12 00 34     1.396    2.390  167.6    5.2    67   28.2 
2026-09-06 00:00 UT   22 06 28.7   -12 05 31     1.400    2.392  166.3    5.7    68   28.2 
2026-09-07 00:00 UT   22 05 12.6   -12 10 21     1.405    2.393  165.0    6.3    68   28.2 
2026-09-08 00:00 UT   22 03 57.6   -12 15 05     1.410    2.394  163.7    6.8    68   28.3 
2026-09-09 00:00 UT   22 02 43.8   -12 19 40     1.416    2.395  162.4    7.3    69   28.3 
2026-09-10 00:00 UT   22 01 31.3   -12 24 09     1.421    2.397  161.2    7.8    69   28.3 
2026-09-11 00:00 UT   22 00 20.2   -12 28 29     1.427    2.398  159.9    8.3    69   28.4 
2026-09-12 00:00 UT   21 59 10.5   -12 32 41     1.433    2.399  158.6    8.8    69   28.4 
2026-09-13 00:00 UT   21 58 02.2   -12 36 45     1.440    2.400  157.4    9.3    69   28.4 
2026-09-14 00:00 UT   21 56 55.5   -12 40 40     1.447    2.401  156.1    9.8    70   28.5 
2026-09-15 00:00 UT   21 55 50.5   -12 44 27     1.454    2.403  154.9   10.2    70   28.5 
2026-09-16 00:00 UT   21 54 47.1   -12 48 04     1.461    2.404  153.6   10.7    70   28.5 
2026-09-17 00:00 UT   21 53 45.3   -12 51 33     1.468    2.405  152.4   11.2    70   28.6 

    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.