(2016) Heinemann
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	11 Mar 2026	18.0	3.268 AU	3.129 AU	17h20m	-23°49'	89.1°	17.7°
Opposition	9 Jun 2026	16.1	3.105 AU	2.090 AU	17h09m	-24°08'	178.8°	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)                : 0.1901159
            a (Semimajor axis)              : 3.1313175
            i (Inclination)                 : 0.91755
            Ω (Longitude of ascending node) : 16.98871
            ω (Argument of perihelion)      : 339.97735
            M (Mean anomaly)                : 247.72948
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : -3.03158
            B (Latitude of perihelion)      : -0.31415
            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
2026-03-11 00:00 UT   17 20 13.0   -23 49 05     3.129    3.268   89.1   17.7   274   18.0 
2026-03-11 06:49 UT   17 20 26.3   -23 49 23     3.124    3.268   89.4   17.7   274   17.9 
2026-03-12 00:00 UT   17 20 59.3   -23 50 07     3.112    3.267   90.0   17.7   274   17.9 
2026-03-13 00:00 UT   17 21 44.6   -23 51 07     3.096    3.265   90.8   17.7   274   17.9 
2026-03-14 00:00 UT   17 22 29.0   -23 52 06     3.080    3.263   91.6   17.7   274   17.9 
2026-03-15 00:00 UT   17 23 12.5   -23 53 03     3.064    3.261   92.5   17.7   274   17.9 
2026-03-16 00:00 UT   17 23 55.0   -23 53 59     3.048    3.260   93.3   17.7   274   17.9 
2026-03-17 00:00 UT   17 24 36.5   -23 54 53     3.032    3.258   94.1   17.7   274   17.9 
2026-03-18 00:00 UT   17 25 17.0   -23 55 46     3.016    3.256   95.0   17.7   274   17.9 
2026-03-19 00:00 UT   17 25 56.5   -23 56 38     2.999    3.254   95.8   17.7   273   17.9 
2026-03-20 00:00 UT   17 26 35.0   -23 57 29     2.983    3.253   96.7   17.7   273   17.8 
2026-03-21 00:00 UT   17 27 12.4   -23 58 18     2.967    3.251   97.5   17.7   273   17.8 
2026-03-22 00:00 UT   17 27 48.8   -23 59 06     2.951    3.249   98.4   17.7   273   17.8 
2026-03-23 00:00 UT   17 28 24.1   -23 59 53     2.935    3.247   99.2   17.6   273   17.8 
2026-03-24 00:00 UT   17 28 58.3   -24 00 39     2.919    3.246  100.1   17.6   273   17.8 
2026-03-25 00:00 UT   17 29 31.5   -24 01 24     2.903    3.244  100.9   17.6   273   17.8 
2026-03-26 00:00 UT   17 30 03.5   -24 02 08     2.888    3.242  101.8   17.5   273   17.8 
2026-03-27 00:00 UT   17 30 34.4   -24 02 50     2.872    3.240  102.7   17.5   273   17.7 
2026-03-28 00:00 UT   17 31 04.2   -24 03 32     2.856    3.239  103.6   17.4   273   17.7 
2026-03-29 00:00 UT   17 31 32.8   -24 04 13     2.840    3.237  104.4   17.4   273   17.7 
2026-03-30 00:00 UT   17 32 00.3   -24 04 53     2.825    3.235  105.3   17.3   273   17.7 
2026-03-31 00:00 UT   17 32 26.6   -24 05 32     2.809    3.233  106.2   17.3   273   17.7 
2026-04-01 00:00 UT   17 32 51.7   -24 06 10     2.794    3.232  107.1   17.2   273   17.7 
2026-04-02 00:00 UT   17 33 15.7   -24 06 47     2.778    3.230  108.0   17.1   273   17.7 
2026-04-03 00:00 UT   17 33 38.4   -24 07 23     2.763    3.228  108.9   17.0   273   17.6 
2026-04-04 00:00 UT   17 33 59.9   -24 07 59     2.747    3.226  109.8   17.0   273   17.6 
2026-04-05 00:00 UT   17 34 20.1   -24 08 33     2.732    3.225  110.7   16.9   273   17.6 
2026-04-06 00:00 UT   17 34 39.1   -24 09 07     2.717    3.223  111.6   16.8   273   17.6 
2026-04-07 00:00 UT   17 34 56.9   -24 09 40     2.702    3.221  112.5   16.7   273   17.6 
2026-04-08 00:00 UT   17 35 13.3   -24 10 13     2.687    3.219  113.5   16.6   273   17.6 
2026-04-09 00:00 UT   17 35 28.5   -24 10 44     2.672    3.218  114.4   16.5   273   17.5 
2026-04-10 00:00 UT   17 35 42.4   -24 11 15     2.657    3.216  115.3   16.4   273   17.5 

    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.