(346) Hermentaria
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Opposition	21 May 2026	11.5	3.011 AU	2.003 AU	15h59m	-13°31'	173.1°	2.3°
Today	9 Jun 2026	11.8	2.998 AU	2.032 AU	15h43m	-13°29'	158.1°	7.2°

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 Hermentaria are:

            e (Eccentricity)                : 0.1025553
            a (Semimajor axis)              : 2.7955455
            i (Inclination)                 : 8.75772
            Ω (Longitude of ascending node) : 91.84899
            ω (Argument of perihelion)      : 290.64483
            M (Mean anomaly)                : 229.21118
            Epoch                           : 2026 Jun 09

            L (Longitude of perihelion)     : 22.71649
            B (Latitude of perihelion)      : -8.19133
            P (Orbital period in years)     : 4.67            
        

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
2026-06-09 00:00 UT   15 43 50.3   -13 29 10     2.032    2.998  158.1    7.2   118   11.8 
2026-06-09 17:54 UT   15 43 15.3   -13 29 31     2.035    2.998  157.3    7.5   118   11.8 
2026-06-10 00:00 UT   15 43 03.5   -13 29 39     2.036    2.997  157.1    7.6   118   11.8 
2026-06-11 00:00 UT   15 42 17.6   -13 30 11     2.041    2.997  156.0    7.9   117   11.8 
2026-06-12 00:00 UT   15 41 32.5   -13 30 49     2.045    2.996  154.9    8.3   116   11.8 
2026-06-13 00:00 UT   15 40 48.4   -13 31 30     2.050    2.995  153.8    8.6   115   11.8 
2026-06-14 00:00 UT   15 40 05.3   -13 32 16     2.056    2.995  152.7    8.9   115   11.9 
2026-06-15 00:00 UT   15 39 23.1   -13 33 07     2.061    2.994  151.6    9.3   114   11.9 
2026-06-16 00:00 UT   15 38 42.0   -13 34 03     2.067    2.993  150.6    9.6   114   11.9 
2026-06-17 00:00 UT   15 38 02.0   -13 35 03     2.072    2.992  149.5    9.9   113   11.9 
2026-06-18 00:00 UT   15 37 23.1   -13 36 08     2.079    2.992  148.4   10.2   113   11.9 
2026-06-19 00:00 UT   15 36 45.3   -13 37 18     2.085    2.991  147.3   10.6   112   12.0 
2026-06-20 00:00 UT   15 36 08.7   -13 38 33     2.092    2.990  146.3   10.9   112   12.0 
2026-06-21 00:00 UT   15 35 33.3   -13 39 52     2.098    2.990  145.2   11.2   112   12.0 
2026-06-22 00:00 UT   15 34 59.1   -13 41 17     2.105    2.989  144.1   11.5   111   12.0 
2026-06-23 00:00 UT   15 34 26.1   -13 42 46     2.113    2.988  143.1   11.8   111   12.0 
2026-06-24 00:00 UT   15 33 54.4   -13 44 20     2.120    2.987  142.0   12.1   111   12.0 
2026-06-25 00:00 UT   15 33 24.0   -13 45 59     2.128    2.987  141.0   12.4   110   12.1 
2026-06-26 00:00 UT   15 32 54.9   -13 47 43     2.135    2.986  139.9   12.7   110   12.1 
2026-06-27 00:00 UT   15 32 27.0   -13 49 32     2.143    2.985  138.9   12.9   110   12.1 
2026-06-28 00:00 UT   15 32 00.5   -13 51 25     2.152    2.984  137.9   13.2   110   12.1 
2026-06-29 00:00 UT   15 31 35.4   -13 53 24     2.160    2.984  136.8   13.5   109   12.1 
2026-06-30 00:00 UT   15 31 11.6   -13 55 27     2.169    2.983  135.8   13.7   109   12.2 
2026-07-01 00:00 UT   15 30 49.1   -13 57 35     2.177    2.982  134.8   14.0   109   12.2 
2026-07-02 00:00 UT   15 30 28.0   -13 59 48     2.186    2.981  133.8   14.3   109   12.2 
2026-07-03 00:00 UT   15 30 08.3   -14 02 05     2.196    2.981  132.8   14.5   109   12.2 
2026-07-04 00:00 UT   15 29 49.9   -14 04 27     2.205    2.980  131.8   14.7   108   12.2 
2026-07-05 00:00 UT   15 29 33.0   -14 06 54     2.214    2.979  130.8   15.0   108   12.2 
2026-07-06 00:00 UT   15 29 17.4   -14 09 26     2.224    2.978  129.8   15.2   108   12.3 
2026-07-07 00:00 UT   15 29 03.2   -14 12 02     2.234    2.978  128.8   15.4   108   12.3 
2026-07-08 00:00 UT   15 28 50.5   -14 14 42     2.243    2.977  127.8   15.7   108   12.3 
2026-07-09 00:00 UT   15 28 39.1   -14 17 28     2.254    2.976  126.8   15.9   108   12.3 

    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.