(346) Hermentaria
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	14 Jul 2025	13.3	3.067 AU	3.479 AU	11h33m	+11°17'	58.2°	16.4°
Opposition	21 May 2026	11.5	3.010 AU	2.003 AU	15h59m	-13°31'	173.1°	2.3°

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)                : 0.1029058
            a (Semimajor axis)              : 2.7946187
            i (Inclination)                 : 8.75798
            Ω (Longitude of ascending node) : 91.84788
            ω (Argument of perihelion)      : 290.71415
            M (Mean anomaly)                : 144.76616
            Epoch                           : 2025 May 05

            L (Longitude of perihelion)     : 22.78533
            B (Latitude of perihelion)      : -8.18781
            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. A more printer-friendly version of the same chart can be found below.

Ephemerides:

Date       Time       RA (2000)    DEC (2000)    delta   radius  elong  phase   PA    magn
2025-07-14 00:00 UT   11 33 01.1   +11 17 47     3.479    3.067   58.2   16.4   109   13.3 
2025-07-14 23:19 UT   11 34 03.6   +11 09 24     3.491    3.067   57.5   16.2   109   13.3 
2025-07-15 00:00 UT   11 34 05.4   +11 09 09     3.491    3.068   57.5   16.2   109   13.3 
2025-07-16 00:00 UT   11 35 10.1   +11 00 30     3.503    3.068   56.9   16.1   108   13.3 
2025-07-17 00:00 UT   11 36 15.2   +10 51 49     3.514    3.068   56.2   16.0   108   13.4 
2025-07-18 00:00 UT   11 37 20.7   +10 43 06     3.526    3.068   55.6   15.9   108   13.4 
2025-07-19 00:00 UT   11 38 26.5   +10 34 22     3.537    3.069   55.0   15.7   108   13.4 
2025-07-20 00:00 UT   11 39 32.7   +10 25 36     3.549    3.069   54.3   15.6   108   13.4 
2025-07-21 00:00 UT   11 40 39.3   +10 16 48     3.560    3.069   53.7   15.5   108   13.4 
2025-07-22 00:00 UT   11 41 46.2   +10 07 59     3.571    3.070   53.0   15.3   108   13.4 
2025-07-23 00:00 UT   11 42 53.5   +09 59 08     3.582    3.070   52.4   15.2   108   13.4 
2025-07-24 00:00 UT   11 44 01.1   +09 50 16     3.593    3.070   51.8   15.1   108   13.4 
2025-07-25 00:00 UT   11 45 09.0   +09 41 22     3.604    3.070   51.1   14.9   108   13.4 
2025-07-26 00:00 UT   11 46 17.3   +09 32 27     3.615    3.071   50.5   14.8   107   13.4 
2025-07-27 00:00 UT   11 47 25.9   +09 23 31     3.625    3.071   49.9   14.6   107   13.4 
2025-07-28 00:00 UT   11 48 34.8   +09 14 33     3.636    3.071   49.3   14.5   107   13.4 
2025-07-29 00:00 UT   11 49 44.0   +09 05 34     3.646    3.071   48.6   14.4   107   13.4 
2025-07-30 00:00 UT   11 50 53.6   +08 56 34     3.657    3.072   48.0   14.2   107   13.4 
2025-07-31 00:00 UT   11 52 03.4   +08 47 33     3.667    3.072   47.4   14.1   107   13.4 
2025-08-01 00:00 UT   11 53 13.5   +08 38 31     3.677    3.072   46.8   13.9   107   13.4 
2025-08-02 00:00 UT   11 54 23.9   +08 29 28     3.687    3.072   46.1   13.8   107   13.4 
2025-08-03 00:00 UT   11 55 34.6   +08 20 23     3.697    3.073   45.5   13.6   106   13.4 
2025-08-04 00:00 UT   11 56 45.5   +08 11 18     3.707    3.073   44.9   13.5   106   13.4 
2025-08-05 00:00 UT   11 57 56.8   +08 02 12     3.717    3.073   44.3   13.3   106   13.4 
2025-08-06 00:00 UT   11 59 08.3   +07 53 05     3.726    3.073   43.7   13.2   106   13.4 
2025-08-07 00:00 UT   12 00 20.0   +07 43 57     3.736    3.074   43.1   13.0   106   13.4 
2025-08-08 00:00 UT   12 01 32.0   +07 34 48     3.745    3.074   42.4   12.9   106   13.4 
2025-08-09 00:00 UT   12 02 44.3   +07 25 38     3.754    3.074   41.8   12.7   106   13.4 

    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.