(200) Dynamene
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	15 Jan 2025	13.7	2.477 AU	3.010 AU	22h54m	-03°18'	48.9°	17.4°
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)                : 0.1330691
            a (Semimajor axis)              : 2.7366014
            i (Inclination)                 : 6.89991
            Ω (Longitude of ascending node) : 324.23850
            ω (Argument of perihelion)      : 87.14368
            M (Mean anomaly)                : 301.20617
            Epoch                           : 2024 Oct 17

            L (Longitude of perihelion)     : 51.36138
            B (Latitude of perihelion)      : 6.89130
            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. 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
2025-01-15 00:00 UT   22 54 09.1   -03 18 60     3.010    2.477   48.9   17.4    65   13.7 
2025-01-15 04:47 UT   22 54 27.5   -03 16 59     3.012    2.477   48.8   17.4    65   13.7 
2025-01-16 00:00 UT   22 55 41.2   -03 08 53     3.019    2.476   48.3   17.3    64   13.7 
2025-01-17 00:00 UT   22 57 13.5   -02 58 42     3.027    2.475   47.7   17.1    64   13.7 
2025-01-18 00:00 UT   22 58 46.2   -02 48 28     3.036    2.474   47.1   16.9    64   13.7 
2025-01-19 00:00 UT   23 00 19.2   -02 38 11     3.044    2.473   46.5   16.8    64   13.7 
2025-01-20 00:00 UT   23 01 52.5   -02 27 51     3.053    2.472   45.9   16.6    64   13.7 
2025-01-21 00:00 UT   23 03 26.1   -02 17 27     3.061    2.471   45.4   16.5    64   13.7 
2025-01-22 00:00 UT   23 04 59.9   -02 07 01     3.069    2.470   44.8   16.3    64   13.7 
2025-01-23 00:00 UT   23 06 34.1   -01 56 31     3.077    2.469   44.2   16.1    64   13.7 
2025-01-24 00:00 UT   23 08 08.6   -01 45 59     3.085    2.468   43.6   16.0    63   13.7 
2025-01-25 00:00 UT   23 09 43.4   -01 35 23     3.093    2.467   43.0   15.8    63   13.7 
2025-01-26 00:00 UT   23 11 18.4   -01 24 45     3.101    2.466   42.4   15.6    63   13.7 
2025-01-27 00:00 UT   23 12 53.7   -01 14 03     3.109    2.465   41.9   15.5    63   13.7 
2025-01-28 00:00 UT   23 14 29.3   -01 03 19     3.116    2.463   41.3   15.3    63   13.7 
2025-01-29 00:00 UT   23 16 05.2   +00 52 32     3.124    2.462   40.7   15.1    63   13.7 
2025-01-30 00:00 UT   23 17 41.3   +00 41 43     3.131    2.461   40.1   15.0    63   13.7 
2025-01-31 00:00 UT   23 19 17.7   +00 30 50     3.139    2.460   39.6   14.8    63   13.7 
2025-02-01 00:00 UT   23 20 54.4   +00 19 56     3.146    2.459   39.0   14.6    62   13.7 
2025-02-02 00:00 UT   23 22 31.3   +00 08 58     3.153    2.458   38.4   14.4    62   13.7 
2025-02-03 00:00 UT   23 24 08.4   +00 02 02     3.160    2.457   37.9   14.3    62   13.7 

    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.