(2016) Heinemann
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	28 Sep 2026	17.6	2.899 AU	2.984 AU	17h15m	-23°56'	75.4°	19.5°
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
2026-09-28 00:00 UT   17 15 59.4   -23 56 24     2.984    2.899   75.4   19.5    95   17.6 
2026-09-28 23:40 UT   17 17 07.8   -23 57 21     2.995    2.897   74.7   19.5    94   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 
2026-10-03 00:00 UT   17 21 54.4   -24 01 07     3.040    2.890   71.9   19.2    94   17.7 
2026-10-04 00:00 UT   17 23 07.9   -24 02 00     3.051    2.888   71.2   19.1    94   17.7 
2026-10-05 00:00 UT   17 24 22.2   -24 02 52     3.062    2.886   70.5   19.1    94   17.7 
2026-10-06 00:00 UT   17 25 37.3   -24 03 42     3.073    2.884   69.8   19.0    94   17.7 
2026-10-07 00:00 UT   17 26 53.2   -24 04 31     3.084    2.882   69.1   18.9    94   17.7 
2026-10-08 00:00 UT   17 28 09.8   -24 05 19     3.095    2.880   68.4   18.8    93   17.7 
2026-10-09 00:00 UT   17 29 27.2   -24 06 05     3.106    2.879   67.7   18.7    93   17.7 
2026-10-10 00:00 UT   17 30 45.4   -24 06 49     3.116    2.877   67.0   18.6    93   17.7 
2026-10-11 00:00 UT   17 32 04.3   -24 07 31     3.127    2.875   66.3   18.5    93   17.7 
2026-10-12 00:00 UT   17 33 24.0   -24 08 11     3.138    2.873   65.6   18.4    93   17.7 
2026-10-13 00:00 UT   17 34 44.3   -24 08 49     3.148    2.871   64.9   18.3    93   17.7 
2026-10-14 00:00 UT   17 36 05.4   -24 09 25     3.159    2.870   64.3   18.2    93   17.7 
2026-10-15 00:00 UT   17 37 27.2   -24 09 60     3.169    2.868   63.6   18.1    93   17.7 
2026-10-16 00:00 UT   17 38 49.7   -24 10 31     3.179    2.866   62.9   18.0    93   17.7 
2026-10-17 00:00 UT   17 40 12.8   -24 11 01     3.190    2.864   62.2   17.9    92   17.7 
2026-10-18 00:00 UT   17 41 36.7   -24 11 28     3.200    2.862   61.5   17.8    92   17.7 
2026-10-19 00:00 UT   17 43 01.1   -24 11 53     3.210    2.861   60.9   17.7    92   17.7 
2026-10-20 00:00 UT   17 44 26.3   -24 12 16     3.220    2.859   60.2   17.6    92   17.7 
2026-10-21 00:00 UT   17 45 52.0   -24 12 35     3.230    2.857   59.5   17.5    92   17.7 
2026-10-22 00:00 UT   17 47 18.4   -24 12 53     3.240    2.855   58.9   17.4    92   17.7 
2026-10-23 00:00 UT   17 48 45.4   -24 13 07     3.249    2.853   58.2   17.2    92   17.7 
2026-10-24 00:00 UT   17 50 13.0   -24 13 19     3.259    2.852   57.5   17.1    91   17.7 
2026-10-25 00:00 UT   17 51 41.2   -24 13 28     3.269    2.850   56.9   17.0    91   17.7 
2026-10-26 00:00 UT   17 53 10.0   -24 13 34     3.278    2.848   56.2   16.9    91   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.