(346) Hermentaria
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	6 May 2026	11.8	3.020 AU	2.053 AU	16h13m	-13°45'	159.9°	6.6°
Opposition	21 May 2026	11.5	3.011 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)                : 0.1027447
            a (Semimajor axis)              : 2.7949991
            i (Inclination)                 : 8.75798
            Ω (Longitude of ascending node) : 91.84739
            ω (Argument of perihelion)      : 290.70021
            M (Mean anomaly)                : 186.97743
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 22.77077
            B (Latitude of perihelion)      : -8.18857
            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
2026-05-06 00:00 UT   16 13 02.6   -13 45 41     2.053    3.020  159.9    6.6   260   11.8 
2026-05-06 11:55 UT   16 12 39.7   -13 45 09     2.050    3.020  160.5    6.4   259   11.8 
2026-05-07 00:00 UT   16 12 16.2   -13 44 37     2.048    3.020  161.0    6.2   259   11.7 
2026-05-08 00:00 UT   16 11 29.0   -13 43 34     2.043    3.019  162.1    5.9   257   11.7 
2026-05-09 00:00 UT   16 10 41.0   -13 42 32     2.038    3.018  163.2    5.6   256   11.7 
2026-05-10 00:00 UT   16 09 52.2   -13 41 31     2.034    3.018  164.2    5.2   254   11.7 
2026-05-11 00:00 UT   16 09 02.6   -13 40 31     2.030    3.017  165.2    4.9   252   11.7 
2026-05-12 00:00 UT   16 08 12.5   -13 39 33     2.026    3.017  166.3    4.6   250   11.6 
2026-05-13 00:00 UT   16 07 21.6   -13 38 36     2.022    3.016  167.3    4.2   247   11.6 
2026-05-14 00:00 UT   16 06 30.3   -13 37 41     2.019    3.015  168.2    3.9   244   11.6 
2026-05-15 00:00 UT   16 05 38.3   -13 36 47     2.016    3.015  169.2    3.6   241   11.6 
2026-05-16 00:00 UT   16 04 46.0   -13 35 55     2.013    3.014  170.0    3.3   236   11.6 
2026-05-17 00:00 UT   16 03 53.2   -13 35 05     2.011    3.013  170.8    3.1   231   11.5 
2026-05-18 00:00 UT   16 03 00.0   -13 34 18     2.009    3.013  171.6    2.8   225   11.5 
2026-05-19 00:00 UT   16 02 06.6   -13 33 32     2.007    3.012  172.2    2.6   218   11.5 
2026-05-20 00:00 UT   16 01 12.9   -13 32 49     2.005    3.011  172.7    2.5   210   11.5 
2026-05-21 00:00 UT   16 00 19.0   -13 32 08     2.004    3.011  173.0    2.4   201   11.5 
2026-05-22 00:00 UT   15 59 24.9   -13 31 30     2.003    3.010  173.1    2.3   191   11.5 
2026-05-23 00:00 UT   15 58 30.8   -13 30 54     2.002    3.010  173.0    2.3   182   11.5 
2026-05-24 00:00 UT   15 57 36.7   -13 30 21     2.002    3.009  172.8    2.4   172   11.5 
2026-05-25 00:00 UT   15 56 42.6   -13 29 51     2.002    3.008  172.3    2.6   164   11.5 
2026-05-26 00:00 UT   15 55 48.6   -13 29 24     2.002    3.008  171.8    2.8   157   11.5 
2026-05-27 00:00 UT   15 54 54.7   -13 28 60     2.002    3.007  171.1    3.0   150   11.5 
2026-05-28 00:00 UT   15 54 01.0   -13 28 39     2.003    3.006  170.3    3.3   145   11.5 
2026-05-29 00:00 UT   15 53 07.6   -13 28 21     2.004    3.006  169.4    3.5   141   11.5 
2026-05-30 00:00 UT   15 52 14.4   -13 28 07     2.005    3.005  168.5    3.9   137   11.6 
2026-05-31 00:00 UT   15 51 21.6   -13 27 56     2.006    3.004  167.6    4.2   134   11.6 
2026-06-01 00:00 UT   15 50 29.2   -13 27 49     2.008    3.004  166.6    4.5   131   11.6 
2026-06-02 00:00 UT   15 49 37.2   -13 27 45     2.010    3.003  165.6    4.8   128   11.6 
2026-06-03 00:00 UT   15 48 45.7   -13 27 45     2.013    3.002  164.5    5.2   126   11.6 
2026-06-04 00:00 UT   15 47 54.8   -13 27 49     2.015    3.002  163.5    5.5   125   11.7 
2026-06-05 00:00 UT   15 47 04.4   -13 27 56     2.018    3.001  162.4    5.9   123   11.7 

    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.