(346) Hermentaria
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	27 Sep 2026	13.1	2.908 AU	3.225 AU	16h18m	-20°20'	62.9°	17.9°
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) : 91.84900
            ω (Argument of perihelion)      : 290.64483
            M (Mean anomaly)                : 229.21118
            Epoch                           : 2026 Jun 09

            L (Longitude of perihelion)     : 22.71650
            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
2026-09-27 00:00 UT   16 18 53.4   -20 20 28     3.225    2.908   62.9   17.9    99   13.1 
2026-09-27 02:22 UT   16 19 00.8   -20 20 57     3.226    2.907   62.8   17.9    99   13.1 
2026-09-28 00:00 UT   16 20 08.9   -20 25 20     3.236    2.907   62.2   17.8    99   13.1 
2026-09-29 00:00 UT   16 21 25.0   -20 30 11     3.247    2.906   61.5   17.6    99   13.1 
2026-09-30 00:00 UT   16 22 41.8   -20 35 00     3.258    2.905   60.8   17.5    99   13.1 
2026-10-01 00:00 UT   16 23 59.2   -20 39 48     3.269    2.904   60.2   17.4    99   13.1 
2026-10-02 00:00 UT   16 25 17.3   -20 44 34     3.280    2.903   59.5   17.3    99   13.1 
2026-10-03 00:00 UT   16 26 36.1   -20 49 18     3.291    2.902   58.8   17.2    99   13.1 
2026-10-04 00:00 UT   16 27 55.5   -20 53 60     3.302    2.901   58.2   17.0    98   13.1 
2026-10-05 00:00 UT   16 29 15.5   -20 58 40     3.312    2.900   57.5   16.9    98   13.1 
2026-10-06 00:00 UT   16 30 36.1   -21 03 18     3.323    2.899   56.8   16.8    98   13.1 
2026-10-07 00:00 UT   16 31 57.4   -21 07 54     3.333    2.898   56.2   16.6    98   13.1 
2026-10-08 00:00 UT   16 33 19.3   -21 12 28     3.344    2.897   55.5   16.5    98   13.1 
2026-10-09 00:00 UT   16 34 41.7   -21 17 00     3.354    2.896   54.8   16.4    98   13.1 
2026-10-10 00:00 UT   16 36 04.8   -21 21 30     3.364    2.895   54.2   16.2    98   13.1 
2026-10-11 00:00 UT   16 37 28.5   -21 25 58     3.374    2.894   53.5   16.1    98   13.1 
2026-10-12 00:00 UT   16 38 52.8   -21 30 23     3.384    2.893   52.9   16.0    97   13.1 
2026-10-13 00:00 UT   16 40 17.6   -21 34 45     3.394    2.892   52.2   15.8    97   13.1 
2026-10-14 00:00 UT   16 41 43.0   -21 39 06     3.404    2.891   51.6   15.7    97   13.1 
2026-10-15 00:00 UT   16 43 08.9   -21 43 23     3.414    2.891   50.9   15.5    97   13.1 
2026-10-16 00:00 UT   16 44 35.5   -21 47 38     3.423    2.890   50.3   15.4    97   13.1 
2026-10-17 00:00 UT   16 46 02.5   -21 51 51     3.433    2.889   49.6   15.2    97   13.1 
2026-10-18 00:00 UT   16 47 30.1   -21 56 00     3.442    2.888   49.0   15.1    97   13.1 
2026-10-19 00:00 UT   16 48 58.2   -22 00 07     3.452    2.887   48.3   14.9    97   13.1 
2026-10-20 00:00 UT   16 50 26.8   -22 04 11     3.461    2.886   47.7   14.8    96   13.1 
2026-10-21 00:00 UT   16 51 56.0   -22 08 13     3.470    2.885   47.0   14.6    96   13.1 
2026-10-22 00:00 UT   16 53 25.6   -22 12 11     3.479    2.884   46.4   14.5    96   13.1 

    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.