(200) Dynamene
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	22 Oct 2025	12.9	2.406 AU	1.953 AU	07h03m	+30°21'	104.7°	23.6°
Opposition	30 Dec 2025	11.6	2.466 AU	1.489 AU	06h42m	+31°15'	171.8°	3.3°

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 Dynamene are:

            e (Eccentricity)                : 0.1335988
            a (Semimajor axis)              : 2.7380249
            i (Inclination)                 : 6.90031
            Ω (Longitude of ascending node) : 324.22250
            ω (Argument of perihelion)      : 87.21611
            M (Mean anomaly)                : 28.22714
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 51.41833
            B (Latitude of perihelion)      : 6.89213
            P (Orbital period in years)     : 4.53            
        

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
2025-10-22 00:00 UT   07 03 07.5   +30 21 49     1.953    2.406  104.7   23.6   274   12.9 
2025-10-22 18:39 UT   07 03 43.9   +30 22 18     1.945    2.407  105.3   23.5   274   12.9 
2025-10-23 00:00 UT   07 03 54.2   +30 22 26     1.942    2.407  105.5   23.5   274   12.9 
2025-10-24 00:00 UT   07 04 39.1   +30 23 04     1.931    2.408  106.3   23.4   274   12.9 
2025-10-25 00:00 UT   07 05 22.4   +30 23 44     1.920    2.408  107.1   23.2   274   12.9 
2025-10-26 00:00 UT   07 06 04.0   +30 24 26     1.909    2.409  108.0   23.1   274   12.9 
2025-10-27 00:00 UT   07 06 43.8   +30 25 09     1.898    2.410  108.8   23.0   274   12.8 
2025-10-28 00:00 UT   07 07 21.9   +30 25 54     1.887    2.410  109.7   22.8   274   12.8 
2025-10-29 00:00 UT   07 07 58.2   +30 26 40     1.876    2.411  110.5   22.7   274   12.8 
2025-10-30 00:00 UT   07 08 32.7   +30 27 29     1.865    2.412  111.4   22.5   274   12.8 
2025-10-31 00:00 UT   07 09 05.4   +30 28 19     1.855    2.413  112.3   22.4   274   12.8 
2025-11-01 00:00 UT   07 09 36.3   +30 29 11     1.844    2.413  113.1   22.2   273   12.8 
2025-11-02 00:00 UT   07 10 05.3   +30 30 06     1.833    2.414  114.0   22.1   273   12.7 
2025-11-03 00:00 UT   07 10 32.5   +30 31 02     1.823    2.415  114.9   21.9   273   12.7 
2025-11-04 00:00 UT   07 10 57.7   +30 31 60     1.812    2.415  115.8   21.7   273   12.7 
2025-11-05 00:00 UT   07 11 21.0   +30 32 59     1.802    2.416  116.7   21.5   273   12.7 
2025-11-06 00:00 UT   07 11 42.4   +30 34 01     1.792    2.417  117.6   21.3   273   12.7 
2025-11-07 00:00 UT   07 12 01.9   +30 35 05     1.782    2.418  118.6   21.1   273   12.7 
2025-11-08 00:00 UT   07 12 19.3   +30 36 10     1.772    2.418  119.5   20.9   273   12.6 
2025-11-09 00:00 UT   07 12 34.8   +30 37 18     1.762    2.419  120.4   20.7   272   12.6 
2025-11-10 00:00 UT   07 12 48.2   +30 38 27     1.752    2.420  121.4   20.5   272   12.6 
2025-11-11 00:00 UT   07 12 59.6   +30 39 38     1.742    2.421  122.3   20.2   272   12.6 
2025-11-12 00:00 UT   07 13 08.9   +30 40 51     1.733    2.422  123.3   20.0   272   12.6 
2025-11-13 00:00 UT   07 13 16.2   +30 42 05     1.723    2.422  124.2   19.7   272   12.5 
2025-11-14 00:00 UT   07 13 21.3   +30 43 21     1.714    2.423  125.2   19.5   271   12.5 
2025-11-15 00:00 UT   07 13 24.4   +30 44 39     1.705    2.424  126.2   19.2   271   12.5 
2025-11-16 00:00 UT   07 13 25.3   +30 45 58     1.695    2.425  127.2   19.0   271   12.5 
2025-11-17 00:00 UT   07 13 24.0   +30 47 18     1.686    2.426  128.2   18.7   271   12.5 
2025-11-18 00:00 UT   07 13 20.7   +30 48 40     1.678    2.426  129.2   18.4   270   12.4 
2025-11-19 00:00 UT   07 13 15.1   +30 50 03     1.669    2.427  130.2   18.1   270   12.4 
2025-11-20 00:00 UT   07 13 07.4   +30 51 26     1.660    2.428  131.2   17.8   270   12.4 
2025-11-21 00:00 UT   07 12 57.6   +30 52 50     1.652    2.429  132.2   17.5   269   12.4 

    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.