2016 HM3
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	21 Jan 2026	29.9	2.833 AU	1.961 AU	05h46m	+25°55'	146.4°	11.1°

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 2016 HM3 are:

            e (Eccentricity)                : 0.5334343
            a (Semimajor axis)              : 2.3152242
            i (Inclination)                 : 2.14348
            Ω (Longitude of ascending node) : 43.49266
            ω (Argument of perihelion)      : 195.76197
            M (Mean anomaly)                : 255.88175
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 59.24415
            B (Latitude of perihelion)      : -0.58213
            P (Orbital period in years)     : 3.52            
        

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
2026-01-21 00:00 UT   05 46 45.9   +25 55 54     1.961    2.833  146.4   11.1    92   29.9 
2026-01-21 21:01 UT   05 45 53.2   +25 55 25     1.964    2.829  145.3   11.4    92   29.9 
2026-01-22 00:00 UT   05 45 45.8   +25 55 21     1.965    2.829  145.1   11.5    92   29.9 
2026-01-23 00:00 UT   05 44 47.3   +25 54 45     1.969    2.824  143.9   11.9    92   29.9 
2026-01-24 00:00 UT   05 43 50.3   +25 54 07     1.973    2.820  142.7   12.2    92   29.9 
2026-01-25 00:00 UT   05 42 55.1   +25 53 28     1.978    2.815  141.4   12.6    91   30.0 
2026-01-26 00:00 UT   05 42 01.5   +25 52 47     1.983    2.811  140.2   13.0    91   30.0 
2026-01-27 00:00 UT   05 41 09.6   +25 52 05     1.988    2.806  139.0   13.3    91   30.0 
2026-01-28 00:00 UT   05 40 19.5   +25 51 21     1.993    2.802  137.8   13.7    91   30.0 
2026-01-29 00:00 UT   05 39 31.2   +25 50 37     1.998    2.797  136.6   14.0    91   30.0 
2026-01-30 00:00 UT   05 38 44.7   +25 49 51     2.004    2.792  135.4   14.3    90   30.0 
2026-01-31 00:00 UT   05 37 60.0   +25 49 05     2.010    2.788  134.2   14.7    90   30.0 
2026-02-01 00:00 UT   05 37 17.1   +25 48 18     2.016    2.783  133.1   15.0    90   30.1 
2026-02-02 00:00 UT   05 36 36.1   +25 47 30     2.022    2.778  131.9   15.3    90   30.1 
2026-02-03 00:00 UT   05 35 57.0   +25 46 42     2.028    2.774  130.7   15.6    90   30.1 
2026-02-04 00:00 UT   05 35 19.9   +25 45 54     2.035    2.769  129.6   15.9    90   30.1 
2026-02-05 00:00 UT   05 34 44.6   +25 45 06     2.041    2.764  128.4   16.2    89   30.1 
2026-02-06 00:00 UT   05 34 11.2   +25 44 18     2.048    2.760  127.3   16.5    89   30.1 
2026-02-07 00:00 UT   05 33 39.8   +25 43 30     2.055    2.755  126.2   16.8    89   30.1 
2026-02-08 00:00 UT   05 33 10.3   +25 42 43     2.062    2.750  125.1   17.1    89   30.2 
2026-02-09 00:00 UT   05 32 42.8   +25 41 55     2.070    2.745  123.9   17.3    89   30.2 
2026-02-10 00:00 UT   05 32 17.3   +25 41 08     2.077    2.741  122.8   17.6    89   30.2 
2026-02-11 00:00 UT   05 31 53.7   +25 40 22     2.085    2.736  121.7   17.9    89   30.2 
2026-02-12 00:00 UT   05 31 32.0   +25 39 37     2.093    2.731  120.6   18.1    89   30.2 
2026-02-13 00:00 UT   05 31 12.4   +25 38 52     2.100    2.726  119.6   18.4    88   30.2 
2026-02-14 00:00 UT   05 30 54.7   +25 38 08     2.108    2.721  118.5   18.6    88   30.2 
2026-02-15 00:00 UT   05 30 39.0   +25 37 25     2.116    2.717  117.4   18.8    88   30.2 
2026-02-16 00:00 UT   05 30 25.3   +25 36 43     2.125    2.712  116.4   19.1    88   30.3 
2026-02-17 00:00 UT   05 30 13.5   +25 36 02     2.133    2.707  115.3   19.3    88   30.3 
2026-02-18 00:00 UT   05 30 03.7   +25 35 22     2.141    2.702  114.3   19.5    88   30.3 
2026-02-19 00:00 UT   05 29 55.8   +25 34 44     2.150    2.697  113.2   19.7    88   30.3 
2026-02-20 00:00 UT   05 29 49.9   +25 34 06     2.158    2.692  112.2   19.9    88   30.3 

    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.