(65) Cybele
ephemeris date magn radius delta ra dec elong phase
Today5 Dec 202513.13.427 AU3.510 AU11h44m+01°56'77.0°16.3°
Opposition16 Mar 202611.33.305 AU2.311 AU11h46m+03°23'178.2°0.5°
(65) Cybele - 2025-12-05
astro.vanbuitenen.nl


 
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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 Cybele are:

            e (Eccentricity)                : 0.1277298
            a (Semimajor axis)              : 3.4076673
            i (Inclination)                 : 3.56495
            Ω (Longitude of ascending node) : 155.09879
            ω (Argument of perihelion)      : 104.13943
            M (Mean anomaly)                : 272.63269
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 79.26453
            B (Latitude of perihelion)      : 3.45681
            P (Orbital period in years)     : 6.29            
        

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
2025-12-05 00:00 UT   11 44 39.5   +01 56 56     3.510    3.427   77.0   16.3   293   13.1 
2025-12-05 17:11 UT   11 45 13.4   +01 53 46     3.499    3.426   77.6   16.3   293   13.1 
2025-12-06 00:00 UT   11 45 26.7   +01 52 31     3.495    3.425   77.8   16.3   293   13.1 
2025-12-07 00:00 UT   11 46 13.2   +01 48 11     3.479    3.424   78.6   16.4   293   13.1 
2025-12-08 00:00 UT   11 46 59.0   +01 43 55     3.463    3.423   79.5   16.4   293   13.1 
2025-12-09 00:00 UT   11 47 44.3   +01 39 44     3.448    3.422   80.3   16.5   293   13.1 
2025-12-10 00:00 UT   11 48 28.8   +01 35 37     3.432    3.421   81.1   16.5   293   13.1 
2025-12-11 00:00 UT   11 49 12.7   +01 31 35     3.416    3.419   81.9   16.6   293   13.1 
2025-12-12 00:00 UT   11 49 55.9   +01 27 38     3.400    3.418   82.7   16.6   293   13.0 
2025-12-13 00:00 UT   11 50 38.4   +01 23 45     3.384    3.417   83.6   16.6   293   13.0 
2025-12-14 00:00 UT   11 51 20.2   +01 19 58     3.369    3.416   84.4   16.7   293   13.0 
2025-12-15 00:00 UT   11 52 01.2   +01 16 16     3.353    3.415   85.2   16.7   293   13.0 
2025-12-16 00:00 UT   11 52 41.5   +01 12 39     3.337    3.414   86.1   16.7   293   13.0 
2025-12-17 00:00 UT   11 53 21.1   +01 09 07     3.321    3.412   86.9   16.7   293   13.0 
2025-12-18 00:00 UT   11 53 59.9   +01 05 40     3.305    3.411   87.8   16.8   293   13.0 
2025-12-19 00:00 UT   11 54 38.0   +01 02 19     3.289    3.410   88.6   16.8   293   13.0 
2025-12-20 00:00 UT   11 55 15.2   +00 59 04     3.273    3.409   89.5   16.8   293   13.0 
2025-12-21 00:00 UT   11 55 51.7   +00 55 54     3.257    3.408   90.3   16.8   293   13.0 
2025-12-22 00:00 UT   11 56 27.3   +00 52 49     3.241    3.406   91.2   16.8   293   12.9 
2025-12-23 00:00 UT   11 57 02.1   +00 49 51     3.225    3.405   92.0   16.8   293   12.9 
2025-12-24 00:00 UT   11 57 36.1   +00 46 58     3.209    3.404   92.9   16.8   293   12.9 
2025-12-25 00:00 UT   11 58 09.3   +00 44 12     3.193    3.403   93.8   16.8   293   12.9 
2025-12-26 00:00 UT   11 58 41.6   +00 41 31     3.177    3.402   94.7   16.7   293   12.9 
2025-12-27 00:00 UT   11 59 13.0   +00 38 57     3.161    3.400   95.6   16.7   293   12.9 
2025-12-28 00:00 UT   11 59 43.6   +00 36 28     3.145    3.399   96.4   16.7   293   12.9 
2025-12-29 00:00 UT   12 00 13.2   +00 34 06     3.130    3.398   97.3   16.7   293   12.9 
2025-12-30 00:00 UT   12 00 42.0   +00 31 50     3.114    3.397   98.2   16.6   293   12.8 
2025-12-31 00:00 UT   12 01 09.9   +00 29 41     3.098    3.396   99.1   16.6   293   12.8 
2026-01-01 00:00 UT   12 01 36.8   +00 27 38     3.082    3.394  100.0   16.6   293   12.8 
2026-01-02 00:00 UT   12 02 02.8   +00 25 41     3.067    3.393  100.9   16.5   293   12.8 
2026-01-03 00:00 UT   12 02 27.9   +00 23 52     3.051    3.392  101.8   16.5   293   12.8 
2026-01-04 00:00 UT   12 02 52.1   +00 22 08     3.035    3.391  102.8   16.4   293   12.8 


    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.