(346) Hermentaria
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	16 Apr 2024	12.9	2.692 AU	3.162 AU	05h15m	+23°46'	53.7°	17.5°
Opposition	2 Mar 2025	11.7	3.000 AU	2.024 AU	11h12m	+18°24'	167.7°	4.0°

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)                : 0.1031480
            a (Semimajor axis)              : 2.7955423
            i (Inclination)                 : 8.75728
            Ω (Longitude of ascending node) : 91.84659
            ω (Argument of perihelion)      : 290.93206
            M (Mean anomaly)                : 60.14239
            Epoch                           : 2024 Mar 31

            L (Longitude of perihelion)     : 23.00382
            B (Latitude of perihelion)      : -8.17524
            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
2024-04-16 00:00 UT   05 15 45.8   +23 46 33     3.162    2.692   53.7   17.5    85   12.9 
2024-04-16 08:51 UT   05 16 21.0   +23 47 45     3.166    2.693   53.5   17.4    85   12.9 
2024-04-17 00:00 UT   05 17 21.4   +23 49 48     3.173    2.693   53.1   17.3    85   13.0 
2024-04-18 00:00 UT   05 18 57.4   +23 52 59     3.185    2.694   52.5   17.2    85   13.0 
2024-04-19 00:00 UT   05 20 33.8   +23 56 06     3.197    2.695   51.9   17.1    85   13.0 
2024-04-20 00:00 UT   05 22 10.6   +23 59 09     3.208    2.696   51.3   16.9    86   13.0 
2024-04-21 00:00 UT   05 23 47.8   +24 02 07     3.220    2.698   50.7   16.8    86   13.0 
2024-04-22 00:00 UT   05 25 25.4   +24 05 02     3.231    2.699   50.1   16.6    86   13.0 
2024-04-23 00:00 UT   05 27 03.4   +24 07 53     3.242    2.700   49.5   16.4    86   13.0 
2024-04-24 00:00 UT   05 28 41.7   +24 10 39     3.253    2.701   48.9   16.3    86   13.0 
2024-04-25 00:00 UT   05 30 20.4   +24 13 22     3.264    2.702   48.3   16.1    86   13.0 
2024-04-26 00:00 UT   05 31 59.4   +24 15 60     3.275    2.703   47.7   16.0    86   13.0 
2024-04-27 00:00 UT   05 33 38.8   +24 18 34     3.286    2.704   47.1   15.8    86   13.0 
2024-04-28 00:00 UT   05 35 18.5   +24 21 03     3.297    2.705   46.5   15.7    87   13.0 
2024-04-29 00:00 UT   05 36 58.6   +24 23 29     3.308    2.706   45.9   15.5    87   13.0 
2024-04-30 00:00 UT   05 38 39.0   +24 25 50     3.318    2.707   45.3   15.3    87   13.0 
2024-05-01 00:00 UT   05 40 19.7   +24 28 06     3.329    2.708   44.8   15.2    87   13.0 
2024-05-02 00:00 UT   05 42 00.7   +24 30 19     3.339    2.709   44.2   15.0    87   13.0 
2024-05-03 00:00 UT   05 43 42.0   +24 32 27     3.350    2.710   43.6   14.9    87   13.0 
2024-05-04 00:00 UT   05 45 23.6   +24 34 30     3.360    2.711   43.0   14.7    87   13.0 
2024-05-05 00:00 UT   05 47 05.5   +24 36 29     3.370    2.712   42.4   14.5    87   13.0 
2024-05-06 00:00 UT   05 48 47.7   +24 38 24     3.380    2.713   41.8   14.4    88   13.0 
2024-05-07 00:00 UT   05 50 30.2   +24 40 14     3.390    2.714   41.3   14.2    88   13.0 
2024-05-08 00:00 UT   05 52 12.9   +24 41 59     3.400    2.715   40.7   14.0    88   13.0 

    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.