(200) Dynamene
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	28 Dec 2025	11.6	2.463 AU	1.487 AU	06h45m	+31°18'	171.0°	3.6°
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
2025-12-28 00:00 UT   06 45 23.2   +31 18 09     1.487    2.463  171.0    3.6   208   11.6 
2025-12-28 06:17 UT   06 45 05.9   +31 17 54     1.487    2.464  171.1    3.5   207   11.6 
2025-12-29 00:00 UT   06 44 16.9   +31 17 08     1.488    2.464  171.4    3.4   201   11.6 
2025-12-30 00:00 UT   06 43 10.4   +31 15 58     1.488    2.465  171.7    3.3   192   11.6 
2025-12-31 00:00 UT   06 42 04.0   +31 14 41     1.489    2.466  171.9    3.2   183   11.6 
2026-01-01 00:00 UT   06 40 57.6   +31 13 16     1.490    2.467  171.8    3.3   174   11.6 
2026-01-02 00:00 UT   06 39 51.5   +31 11 44     1.492    2.469  171.5    3.4   166   11.6 
2026-01-03 00:00 UT   06 38 45.7   +31 10 04     1.493    2.470  171.1    3.5   158   11.6 
2026-01-04 00:00 UT   06 37 40.2   +31 08 16     1.495    2.471  170.5    3.8   151   11.6 
2026-01-05 00:00 UT   06 36 35.2   +31 06 21     1.498    2.472  169.8    4.0   145   11.7 
2026-01-06 00:00 UT   06 35 30.8   +31 04 19     1.500    2.473  169.1    4.3   139   11.7 
2026-01-07 00:00 UT   06 34 27.0   +31 02 10     1.503    2.474  168.2    4.7   135   11.7 
2026-01-08 00:00 UT   06 33 24.0   +30 59 54     1.506    2.475  167.3    5.0   130   11.7 
2026-01-09 00:00 UT   06 32 21.8   +30 57 30     1.510    2.476  166.3    5.4   127   11.8 
2026-01-10 00:00 UT   06 31 20.4   +30 55 01     1.513    2.477  165.3    5.8   124   11.8 
2026-01-11 00:00 UT   06 30 20.1   +30 52 24     1.517    2.478  164.2    6.2   121   11.8 
2026-01-12 00:00 UT   06 29 20.8   +30 49 41     1.521    2.479  163.2    6.6   119   11.8 
2026-01-13 00:00 UT   06 28 22.7   +30 46 52     1.526    2.480  162.1    7.0   117   11.9 
2026-01-14 00:00 UT   06 27 25.7   +30 43 57     1.530    2.481  161.0    7.4   115   11.9 
2026-01-15 00:00 UT   06 26 30.1   +30 40 57     1.535    2.482  159.9    7.8   113   11.9 
2026-01-16 00:00 UT   06 25 35.8   +30 37 51     1.541    2.483  158.8    8.2   112   11.9 
2026-01-17 00:00 UT   06 24 43.0   +30 34 39     1.546    2.485  157.7    8.6   111   12.0 
2026-01-18 00:00 UT   06 23 51.6   +30 31 23     1.552    2.486  156.6    9.1   109   12.0 
2026-01-19 00:00 UT   06 23 01.8   +30 28 02     1.558    2.487  155.5    9.5   108   12.0 
2026-01-20 00:00 UT   06 22 13.6   +30 24 36     1.564    2.488  154.3    9.9   107   12.0 
2026-01-21 00:00 UT   06 21 27.0   +30 21 06     1.571    2.489  153.2   10.3   106   12.1 
2026-01-22 00:00 UT   06 20 42.2   +30 17 33     1.577    2.490  152.1   10.7   105   12.1 
2026-01-23 00:00 UT   06 19 59.1   +30 13 55     1.584    2.491  151.0   11.1   105   12.1 
2026-01-24 00:00 UT   06 19 17.8   +30 10 14     1.592    2.492  149.9   11.4   104   12.1 
2026-01-25 00:00 UT   06 18 38.4   +30 06 30     1.599    2.494  148.7   11.8   103   12.2 
2026-01-26 00:00 UT   06 18 00.8   +30 02 43     1.607    2.495  147.6   12.2   102   12.2 
2026-01-27 00:00 UT   06 17 25.1   +29 58 54     1.615    2.496  146.5   12.6   102   12.2 

    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.