2013 CS83
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	2 Dec 2025	25.5	2.108 AU	1.334 AU	08h14m	+33°50'	130.0°	21.0°

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 2013 CS83 are:

            e (Eccentricity)                : 0.6246253
            a (Semimajor axis)              : 1.5214302
            i (Inclination)                 : 9.87850
            Ω (Longitude of ascending node) : 337.72127
            ω (Argument of perihelion)      : 273.10360
            M (Mean anomaly)                : 254.28402
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 250.87148
            B (Latitude of perihelion)      : -9.86387
            P (Orbital period in years)     : 1.88            
        

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
2025-12-02 00:00 UT   08 14 48.6   +33 50 25     1.334    2.108  130.0   21.0   271   25.5 
2025-12-02 01:00 UT   08 14 47.5   +33 50 42     1.334    2.108  130.0   21.0   271   25.5 
2025-12-03 00:00 UT   08 14 21.2   +33 57 19     1.320    2.103  131.0   20.7   271   25.5 
2025-12-04 00:00 UT   08 13 50.5   +34 04 21     1.306    2.098  132.1   20.4   270   25.5 
2025-12-05 00:00 UT   08 13 16.5   +34 11 32     1.291    2.093  133.2   20.1   270   25.4 
2025-12-06 00:00 UT   08 12 39.0   +34 18 52     1.277    2.088  134.3   19.8   269   25.4 
2025-12-07 00:00 UT   08 11 58.0   +34 26 21     1.263    2.083  135.3   19.4   268   25.3 
2025-12-08 00:00 UT   08 11 13.4   +34 33 57     1.250    2.077  136.4   19.1   267   25.3 
2025-12-09 00:00 UT   08 10 25.2   +34 41 41     1.236    2.072  137.6   18.7   267   25.3 
2025-12-10 00:00 UT   08 09 33.2   +34 49 32     1.223    2.067  138.7   18.3   266   25.2 
2025-12-11 00:00 UT   08 08 37.4   +34 57 30     1.209    2.062  139.8   18.0   265   25.2 
2025-12-12 00:00 UT   08 07 37.8   +35 05 34     1.196    2.056  140.9   17.6   264   25.1 
2025-12-13 00:00 UT   08 06 34.2   +35 13 43     1.184    2.051  142.0   17.2   263   25.1 
2025-12-14 00:00 UT   08 05 26.5   +35 21 58     1.171    2.046  143.2   16.8   262   25.1 
2025-12-15 00:00 UT   08 04 14.8   +35 30 16     1.158    2.040  144.3   16.3   261   25.0 
2025-12-16 00:00 UT   08 02 59.0   +35 38 38     1.146    2.035  145.4   15.9   259   25.0 
2025-12-17 00:00 UT   08 01 39.1   +35 47 02     1.134    2.029  146.6   15.5   258   24.9 
2025-12-18 00:00 UT   08 00 14.9   +35 55 28     1.122    2.024  147.7   15.0   257   24.9 
2025-12-19 00:00 UT   07 58 46.4   +36 03 55     1.111    2.018  148.9   14.6   255   24.8 
2025-12-20 00:00 UT   07 57 13.7   +36 12 21     1.099    2.013  150.0   14.1   254   24.8 
2025-12-21 00:00 UT   07 55 36.7   +36 20 45     1.088    2.007  151.1   13.7   252   24.7 
2025-12-22 00:00 UT   07 53 55.4   +36 29 07     1.078    2.001  152.3   13.2   250   24.7 
2025-12-23 00:00 UT   07 52 09.8   +36 37 25     1.067    1.996  153.4   12.8   248   24.7 
2025-12-24 00:00 UT   07 50 19.9   +36 45 38     1.057    1.990  154.5   12.3   246   24.6 
2025-12-25 00:00 UT   07 48 25.7   +36 53 44     1.046    1.984  155.5   11.8   243   24.6 
2025-12-26 00:00 UT   07 46 27.2   +37 01 42     1.037    1.978  156.6   11.4   241   24.5 
2025-12-27 00:00 UT   07 44 24.6   +37 09 31     1.027    1.972  157.6   11.0   238   24.5 
2025-12-28 00:00 UT   07 42 17.8   +37 17 10     1.018    1.966  158.6   10.5   235   24.4 
2025-12-29 00:00 UT   07 40 07.0   +37 24 36     1.009    1.960  159.5   10.1   231   24.4 
2025-12-30 00:00 UT   07 37 52.1   +37 31 48     1.000    1.954  160.4    9.7   227   24.4 

    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.