(2016) Heinemann
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	2 Sep 2026	17.5	2.947 AU	2.680 AU	16h51m	-23°29'	95.2°	19.9°
Opposition	3 Oct 2027	15.0	2.548 AU	1.547 AU	00h39m	+04°04'	179.0°	0.4°

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 Heinemann are:

            e (Eccentricity)                : 0.1899989
            a (Semimajor axis)              : 3.1319350
            i (Inclination)                 : 0.91745
            Ω (Longitude of ascending node) : 16.98339
            ω (Argument of perihelion)      : 339.92502
            M (Mean anomaly)                : 283.35011
            Epoch                           : 2026 Jun 09

            L (Longitude of perihelion)     : -3.08922
            B (Latitude of perihelion)      : -0.31490
            P (Orbital period in years)     : 5.54            
        

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
2026-09-02 00:00 UT   16 51 34.8   -23 29 58     2.680    2.947   95.2   19.9    97   17.5 
2026-09-02 01:43 UT   16 51 37.9   -23 30 02     2.680    2.947   95.1   19.9    97   17.5 
2026-09-03 00:00 UT   16 52 17.8   -23 30 52     2.691    2.945   94.4   20.0    97   17.5 
2026-09-04 00:00 UT   16 53 01.9   -23 31 47     2.703    2.943   93.6   20.0    97   17.5 
2026-09-05 00:00 UT   16 53 47.1   -23 32 43     2.715    2.941   92.8   20.0    96   17.5 
2026-09-06 00:00 UT   16 54 33.5   -23 33 41     2.727    2.939   92.0   20.0    96   17.5 
2026-09-07 00:00 UT   16 55 21.0   -23 34 39     2.739    2.938   91.2   20.1    96   17.5 
2026-09-08 00:00 UT   16 56 09.7   -23 35 38     2.750    2.936   90.4   20.1    96   17.5 
2026-09-09 00:00 UT   16 56 59.4   -23 36 39     2.762    2.934   89.6   20.1    96   17.5 
2026-09-10 00:00 UT   16 57 50.3   -23 37 39     2.774    2.932   88.8   20.1    96   17.5 
2026-09-11 00:00 UT   16 58 42.3   -23 38 41     2.786    2.930   88.1   20.1    96   17.5 
2026-09-12 00:00 UT   16 59 35.3   -23 39 43     2.798    2.928   87.3   20.1    96   17.5 
2026-09-13 00:00 UT   17 00 29.4   -23 40 45     2.810    2.926   86.5   20.1    96   17.5 
2026-09-14 00:00 UT   17 01 24.5   -23 41 48     2.821    2.925   85.8   20.1    96   17.6 
2026-09-15 00:00 UT   17 02 20.7   -23 42 52     2.833    2.923   85.0   20.0    96   17.6 
2026-09-16 00:00 UT   17 03 17.9   -23 43 55     2.845    2.921   84.3   20.0    96   17.6 
2026-09-17 00:00 UT   17 04 16.1   -23 44 59     2.857    2.919   83.5   20.0    96   17.6 
2026-09-18 00:00 UT   17 05 15.4   -23 46 02     2.868    2.917   82.8   20.0    96   17.6 
2026-09-19 00:00 UT   17 06 15.6   -23 47 06     2.880    2.915   82.0   20.0    95   17.6 
2026-09-20 00:00 UT   17 07 16.7   -23 48 10     2.892    2.913   81.3   19.9    95   17.6 
2026-09-21 00:00 UT   17 08 18.8   -23 49 13     2.903    2.912   80.5   19.9    95   17.6 
2026-09-22 00:00 UT   17 09 21.9   -23 50 16     2.915    2.910   79.8   19.8    95   17.6 
2026-09-23 00:00 UT   17 10 25.9   -23 51 19     2.926    2.908   79.1   19.8    95   17.6 
2026-09-24 00:00 UT   17 11 30.8   -23 52 21     2.938    2.906   78.3   19.8    95   17.6 
2026-09-25 00:00 UT   17 12 36.6   -23 53 23     2.949    2.904   77.6   19.7    95   17.6 
2026-09-26 00:00 UT   17 13 43.4   -23 54 24     2.961    2.902   76.9   19.7    95   17.6 
2026-09-27 00:00 UT   17 14 51.0   -23 55 24     2.972    2.901   76.2   19.6    95   17.6 
2026-09-28 00:00 UT   17 15 59.4   -23 56 24     2.984    2.899   75.4   19.5    95   17.6 
2026-09-29 00:00 UT   17 17 08.7   -23 57 22     2.995    2.897   74.7   19.5    94   17.6 
2026-09-30 00:00 UT   17 18 18.9   -23 58 20     3.006    2.895   74.0   19.4    94   17.6 
2026-10-01 00:00 UT   17 19 29.9   -23 59 17     3.018    2.893   73.3   19.4    94   17.7 
2026-10-02 00:00 UT   17 20 41.8   -24 00 12     3.029    2.891   72.6   19.3    94   17.7 

    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.