(346) Hermentaria
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	28 Jul 2026	12.6	2.961 AU	2.467 AU	15h29m	-15°23'	109.2°	18.9°
Opposition	1 Sep 2027	10.8	2.575 AU	1.582 AU	23h01m	-20°30'	166.8°	5.1°

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 Hermentaria are:

            e (Eccentricity)                : 0.1025552
            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
2026-07-28 00:00 UT   15 29 29.2   -15 23 08     2.467    2.961  109.2   18.9   105   12.6 
2026-07-28 21:05 UT   15 29 43.4   -15 26 43     2.478    2.960  108.5   19.0   105   12.6 
2026-07-29 00:00 UT   15 29 45.4   -15 27 13     2.479    2.960  108.4   19.0   105   12.6 
2026-07-30 00:00 UT   15 30 03.0   -15 31 20     2.491    2.959  107.5   19.1   105   12.6 
2026-07-31 00:00 UT   15 30 21.7   -15 35 31     2.504    2.959  106.6   19.2   105   12.6 
2026-08-01 00:00 UT   15 30 41.8   -15 39 45     2.516    2.958  105.8   19.3   105   12.7 
2026-08-02 00:00 UT   15 31 03.1   -15 44 01     2.528    2.957  104.9   19.4   105   12.7 
2026-08-03 00:00 UT   15 31 25.7   -15 48 21     2.541    2.956  104.1   19.4   105   12.7 
2026-08-04 00:00 UT   15 31 49.5   -15 52 43     2.553    2.955  103.2   19.5   105   12.7 
2026-08-05 00:00 UT   15 32 14.5   -15 57 08     2.566    2.954  102.4   19.6   105   12.7 
2026-08-06 00:00 UT   15 32 40.7   -16 01 36     2.578    2.954  101.5   19.7   104   12.7 
2026-08-07 00:00 UT   15 33 08.2   -16 06 06     2.591    2.953  100.7   19.7   104   12.7 
2026-08-08 00:00 UT   15 33 36.8   -16 10 39     2.604    2.952   99.9   19.8   104   12.7 
2026-08-09 00:00 UT   15 34 06.7   -16 15 14     2.616    2.951   99.1   19.8   104   12.8 
2026-08-10 00:00 UT   15 34 37.7   -16 19 52     2.629    2.950   98.2   19.9   104   12.8 
2026-08-11 00:00 UT   15 35 09.9   -16 24 31     2.642    2.949   97.4   19.9   104   12.8 
2026-08-12 00:00 UT   15 35 43.2   -16 29 13     2.655    2.949   96.6   20.0   104   12.8 
2026-08-13 00:00 UT   15 36 17.7   -16 33 57     2.667    2.948   95.8   20.0   104   12.8 
2026-08-14 00:00 UT   15 36 53.3   -16 38 43     2.680    2.947   95.0   20.0   104   12.8 
2026-08-15 00:00 UT   15 37 30.1   -16 43 31     2.693    2.946   94.2   20.1   104   12.8 
2026-08-16 00:00 UT   15 38 08.0   -16 48 21     2.706    2.945   93.4   20.1   104   12.8 
2026-08-17 00:00 UT   15 38 47.0   -16 53 13     2.719    2.944   92.6   20.1   103   12.8 
2026-08-18 00:00 UT   15 39 27.0   -16 58 06     2.732    2.943   91.8   20.1   103   12.8 
2026-08-19 00:00 UT   15 40 08.2   -17 03 00     2.745    2.943   91.1   20.1   103   12.9 
2026-08-20 00:00 UT   15 40 50.4   -17 07 56     2.757    2.942   90.3   20.1   103   12.9 
2026-08-21 00:00 UT   15 41 33.6   -17 12 54     2.770    2.941   89.5   20.1   103   12.9 
2026-08-22 00:00 UT   15 42 17.9   -17 17 53     2.783    2.940   88.7   20.1   103   12.9 
2026-08-23 00:00 UT   15 43 03.2   -17 22 53     2.796    2.939   88.0   20.1   103   12.9 
2026-08-24 00:00 UT   15 43 49.6   -17 27 54     2.809    2.938   87.2   20.1   103   12.9 
2026-08-25 00:00 UT   15 44 36.9   -17 32 56     2.822    2.937   86.4   20.1   103   12.9 
2026-08-26 00:00 UT   15 45 25.2   -17 37 59     2.834    2.937   85.7   20.1   103   12.9 
2026-08-27 00:00 UT   15 46 14.5   -17 43 03     2.847    2.936   84.9   20.0   102   12.9 

    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.