(75) Eurydike
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	28 Dec 2025	15.0	3.427 AU	2.838 AU	10h39m	+12°21'	119.2°	14.5°
Opposition	17 Feb 2026	14.1	3.466 AU	2.480 AU	10h10m	+15°02'	176.4°	1.0°

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 Eurydike are:

            e (Eccentricity)                : 0.3053352
            a (Semimajor axis)              : 2.6729349
            i (Inclination)                 : 4.99402
            Ω (Longitude of ascending node) : 359.12644
            ω (Argument of perihelion)      : 339.65161
            M (Mean anomaly)                : 142.41816
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 338.84900
            B (Latitude of perihelion)      : -1.73463
            P (Orbital period in years)     : 4.37            
        

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   10 39 51.0   +12 21 06     2.838    3.427  119.2   14.5   290   15.0 
2025-12-28 17:28 UT   10 39 46.8   +12 21 47     2.829    3.427  120.0   14.4   290   15.0 
2025-12-29 00:00 UT   10 39 45.0   +12 22 04     2.825    3.428  120.3   14.3   290   15.0 
2025-12-30 00:00 UT   10 39 37.7   +12 23 08     2.813    3.429  121.3   14.2   290   15.0 
2025-12-31 00:00 UT   10 39 29.2   +12 24 20     2.801    3.430  122.4   14.0   290   14.9 
2026-01-01 00:00 UT   10 39 19.4   +12 25 38     2.789    3.431  123.4   13.8   290   14.9 
2026-01-02 00:00 UT   10 39 08.3   +12 27 03     2.778    3.431  124.5   13.7   289   14.9 
2026-01-03 00:00 UT   10 38 55.9   +12 28 35     2.766    3.432  125.6   13.5   289   14.9 
2026-01-04 00:00 UT   10 38 42.3   +12 30 13     2.755    3.433  126.6   13.3   289   14.9 
2026-01-05 00:00 UT   10 38 27.4   +12 31 58     2.743    3.434  127.7   13.1   289   14.9 
2026-01-06 00:00 UT   10 38 11.3   +12 33 50     2.732    3.435  128.8   12.9   289   14.9 
2026-01-07 00:00 UT   10 37 53.8   +12 35 48     2.721    3.436  129.9   12.7   289   14.8 
2026-01-08 00:00 UT   10 37 35.1   +12 37 53     2.711    3.437  131.0   12.5   289   14.8 
2026-01-09 00:00 UT   10 37 15.1   +12 40 04     2.700    3.438  132.1   12.3   289   14.8 
2026-01-10 00:00 UT   10 36 53.9   +12 42 22     2.690    3.439  133.2   12.0   288   14.8 
2026-01-11 00:00 UT   10 36 31.4   +12 44 46     2.680    3.439  134.3   11.8   288   14.8 
2026-01-12 00:00 UT   10 36 07.6   +12 47 16     2.670    3.440  135.4   11.6   288   14.8 
2026-01-13 00:00 UT   10 35 42.6   +12 49 52     2.660    3.441  136.6   11.3   288   14.7 
2026-01-14 00:00 UT   10 35 16.4   +12 52 34     2.650    3.442  137.7   11.1   288   14.7 
2026-01-15 00:00 UT   10 34 48.9   +12 55 22     2.641    3.443  138.8   10.8   288   14.7 
2026-01-16 00:00 UT   10 34 20.2   +12 58 16     2.632    3.444  140.0   10.6   287   14.7 
2026-01-17 00:00 UT   10 33 50.3   +13 01 15     2.623    3.445  141.1   10.3   287   14.7 
2026-01-18 00:00 UT   10 33 19.2   +13 04 19     2.614    3.445  142.3   10.1   287   14.7 
2026-01-19 00:00 UT   10 32 47.0   +13 07 29     2.606    3.446  143.4    9.8   287   14.6 
2026-01-20 00:00 UT   10 32 13.6   +13 10 44     2.598    3.447  144.6    9.5   286   14.6 
2026-01-21 00:00 UT   10 31 39.1   +13 14 04     2.590    3.448  145.7    9.2   286   14.6 
2026-01-22 00:00 UT   10 31 03.4   +13 17 28     2.582    3.448  146.9    9.0   286   14.6 
2026-01-23 00:00 UT   10 30 26.7   +13 20 57     2.574    3.449  148.1    8.7   286   14.6 
2026-01-24 00:00 UT   10 29 48.9   +13 24 30     2.567    3.450  149.2    8.4   285   14.5 
2026-01-25 00:00 UT   10 29 10.1   +13 28 07     2.560    3.451  150.4    8.1   285   14.5 
2026-01-26 00:00 UT   10 28 30.2   +13 31 48     2.554    3.452  151.6    7.8   285   14.5 
2026-01-27 00:00 UT   10 27 49.4   +13 35 32     2.547    3.452  152.8    7.5   284   14.5 

    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.