(135) Hertha
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Opposition	6 May 2026	11.1	2.386 AU	1.378 AU	14h53m	-20°16'	176.2°	1.6°
Today	10 Jun 2026	11.8	2.305 AU	1.428 AU	14h23m	-18°02'	140.6°	16.2°

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 Hertha are:

            e (Eccentricity)                : 0.2083719
            a (Semimajor axis)              : 2.4268992
            i (Inclination)                 : 2.30329
            Ω (Longitude of ascending node) : 343.43461
            ω (Argument of perihelion)      : 340.31245
            M (Mean anomaly)                : 243.17605
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 323.76174
            B (Latitude of perihelion)      : -0.77577
            P (Orbital period in years)     : 3.78            
        

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
2026-06-10 00:00 UT   14 23 54.6   -18 02 04     1.428    2.305  140.6   16.2   104   11.8 
2026-06-10 13:40 UT   14 23 39.4   -18 00 26     1.431    2.303  140.0   16.4   105   11.8 
2026-06-11 00:00 UT   14 23 28.3   -17 59 13     1.433    2.302  139.6   16.6   105   11.8 
2026-06-12 00:00 UT   14 23 03.7   -17 56 29     1.439    2.300  138.5   17.0   105   11.8 
2026-06-13 00:00 UT   14 22 41.1   -17 53 53     1.444    2.298  137.5   17.4   105   11.8 
2026-06-14 00:00 UT   14 22 20.4   -17 51 25     1.450    2.295  136.4   17.8   105   11.8 
2026-06-15 00:00 UT   14 22 01.5   -17 49 04     1.456    2.293  135.4   18.1   105   11.9 
2026-06-16 00:00 UT   14 21 44.6   -17 46 52     1.462    2.291  134.4   18.5   106   11.9 
2026-06-17 00:00 UT   14 21 29.7   -17 44 47     1.468    2.288  133.3   18.8   106   11.9 
2026-06-18 00:00 UT   14 21 16.6   -17 42 51     1.475    2.286  132.3   19.2   106   11.9 
2026-06-19 00:00 UT   14 21 05.6   -17 41 03     1.481    2.284  131.3   19.5   106   11.9 
2026-06-20 00:00 UT   14 20 56.4   -17 39 24     1.488    2.281  130.3   19.8   106   12.0 
2026-06-21 00:00 UT   14 20 49.2   -17 37 53     1.495    2.279  129.3   20.2   106   12.0 
2026-06-22 00:00 UT   14 20 44.0   -17 36 31     1.502    2.276  128.4   20.5   106   12.0 
2026-06-23 00:00 UT   14 20 40.7   -17 35 18     1.509    2.274  127.4   20.8   106   12.0 
2026-06-24 00:00 UT   14 20 39.3   -17 34 13     1.516    2.272  126.4   21.1   107   12.0 
2026-06-25 00:00 UT   14 20 39.9   -17 33 17     1.523    2.269  125.5   21.4   107   12.0 
2026-06-26 00:00 UT   14 20 42.3   -17 32 30     1.531    2.267  124.5   21.7   107   12.1 
2026-06-27 00:00 UT   14 20 46.7   -17 31 51     1.538    2.265  123.6   22.0   107   12.1 
2026-06-28 00:00 UT   14 20 52.9   -17 31 21     1.546    2.262  122.7   22.2   107   12.1 
2026-06-29 00:00 UT   14 21 01.0   -17 31 00     1.553    2.260  121.8   22.5   107   12.1 
2026-06-30 00:00 UT   14 21 11.0   -17 30 48     1.561    2.258  120.8   22.7   107   12.1 
2026-07-01 00:00 UT   14 21 22.9   -17 30 44     1.569    2.255  119.9   23.0   107   12.1 
2026-07-02 00:00 UT   14 21 36.6   -17 30 48     1.577    2.253  119.0   23.2   107   12.2 
2026-07-03 00:00 UT   14 21 52.1   -17 31 02     1.585    2.251  118.1   23.5   107   12.2 
2026-07-04 00:00 UT   14 22 09.4   -17 31 23     1.593    2.248  117.3   23.7   107   12.2 
2026-07-05 00:00 UT   14 22 28.5   -17 31 53     1.602    2.246  116.4   23.9   107   12.2 
2026-07-06 00:00 UT   14 22 49.4   -17 32 32     1.610    2.244  115.5   24.1   107   12.2 
2026-07-07 00:00 UT   14 23 12.1   -17 33 19     1.618    2.242  114.6   24.3   107   12.2 
2026-07-08 00:00 UT   14 23 36.5   -17 34 14     1.627    2.239  113.8   24.5   107   12.3 
2026-07-09 00:00 UT   14 24 02.7   -17 35 17     1.635    2.237  112.9   24.7   107   12.3 
2026-07-10 00:00 UT   14 24 30.6   -17 36 28     1.644    2.235  112.1   24.9   108   12.3 

    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.