(346) Hermentaria
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	10 Apr 2026	12.3	3.035 AU	2.270 AU	16h26m	-14°13'	132.2°	14.2°
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
2026-04-10 00:00 UT   16 26 27.8   -14 13 35     2.270    3.035  132.2   14.2   272   12.3 
2026-04-10 17:58 UT   16 26 17.3   -14 12 54     2.262    3.035  132.9   14.0   272   12.3 
2026-04-11 00:00 UT   16 26 13.6   -14 12 39     2.260    3.035  133.2   13.9   272   12.3 
2026-04-12 00:00 UT   16 25 58.0   -14 11 43     2.249    3.034  134.2   13.7   272   12.3 
2026-04-13 00:00 UT   16 25 40.9   -14 10 44     2.238    3.033  135.3   13.5   272   12.2 
2026-04-14 00:00 UT   16 25 22.3   -14 09 45     2.228    3.033  136.3   13.2   271   12.2 
2026-04-15 00:00 UT   16 25 02.3   -14 08 44     2.218    3.032  137.3   13.0   271   12.2 
2026-04-16 00:00 UT   16 24 40.9   -14 07 43     2.208    3.032  138.4   12.7   271   12.2 
2026-04-17 00:00 UT   16 24 18.1   -14 06 40     2.198    3.031  139.4   12.4   271   12.2 
2026-04-18 00:00 UT   16 23 53.9   -14 05 37     2.188    3.031  140.5   12.2   270   12.1 
2026-04-19 00:00 UT   16 23 28.3   -14 04 32     2.179    3.030  141.6   11.9   270   12.1 
2026-04-20 00:00 UT   16 23 01.3   -14 03 27     2.169    3.030  142.6   11.6   270   12.1 
2026-04-21 00:00 UT   16 22 33.0   -14 02 22     2.160    3.029  143.7   11.3   269   12.1 
2026-04-22 00:00 UT   16 22 03.3   -14 01 16     2.152    3.028  144.8   11.0   269   12.1 
2026-04-23 00:00 UT   16 21 32.3   -14 00 09     2.143    3.028  145.8   10.7   269   12.0 
2026-04-24 00:00 UT   16 21 00.1   -13 59 02     2.135    3.027  146.9   10.4   268   12.0 
2026-04-25 00:00 UT   16 20 26.6   -13 57 55     2.127    3.027  148.0   10.1   268   12.0 
2026-04-26 00:00 UT   16 19 51.8   -13 56 47     2.119    3.026  149.1    9.8   267   12.0 
2026-04-27 00:00 UT   16 19 15.9   -13 55 40     2.111    3.026  150.2    9.5   267   12.0 
2026-04-28 00:00 UT   16 18 38.7   -13 54 32     2.104    3.025  151.2    9.2   266   11.9 
2026-04-29 00:00 UT   16 18 00.4   -13 53 25     2.096    3.024  152.3    8.9   266   11.9 
2026-04-30 00:00 UT   16 17 21.0   -13 52 17     2.089    3.024  153.4    8.6   265   11.9 
2026-05-01 00:00 UT   16 16 40.5   -13 51 10     2.083    3.023  154.5    8.2   264   11.9 
2026-05-02 00:00 UT   16 15 58.9   -13 50 03     2.076    3.023  155.6    7.9   264   11.9 
2026-05-03 00:00 UT   16 15 16.3   -13 48 57     2.070    3.022  156.7    7.6   263   11.8 
2026-05-04 00:00 UT   16 14 32.7   -13 47 51     2.064    3.021  157.8    7.2   262   11.8 
2026-05-05 00:00 UT   16 13 48.1   -13 46 46     2.058    3.021  158.9    6.9   261   11.8 
2026-05-06 00:00 UT   16 13 02.6   -13 45 41     2.053    3.020  159.9    6.6   260   11.8 
2026-05-07 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 

    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.