2013 CS83
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	30 Jul 2026	23.9	0.985 AU	0.678 AU	03h43m	+21°54'	67.8°	72.6°

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
2026-07-30 00:00 UT   03 43 50.1   +21 54 52     0.678    0.985   67.8   72.6   258   23.9 
2026-07-30 01:19 UT   03 43 50.1   +21 55 44     0.678    0.986   67.9   72.5   258   23.9 
2026-07-31 00:00 UT   03 43 50.7   +22 10 29     0.681    0.996   68.7   71.7   258   23.9 
2026-08-01 00:00 UT   03 43 51.8   +22 25 58     0.684    1.008   69.6   70.8   258   23.9 
2026-08-02 00:00 UT   03 43 53.0   +22 41 19     0.687    1.019   70.5   69.9   258   23.9 
2026-08-03 00:00 UT   03 43 54.2   +22 56 32     0.690    1.030   71.4   69.1   258   23.9 
2026-08-04 00:00 UT   03 43 55.1   +23 11 36     0.693    1.041   72.3   68.3   258   24.0 
2026-08-05 00:00 UT   03 43 55.7   +23 26 33     0.696    1.052   73.2   67.5   258   24.0 
2026-08-06 00:00 UT   03 43 55.7   +23 41 23     0.698    1.063   74.1   66.7   258   24.0 
2026-08-07 00:00 UT   03 43 54.9   +23 56 04     0.700    1.073   75.0   65.9   258   24.0 
2026-08-08 00:00 UT   03 43 53.2   +24 10 37     0.702    1.084   76.0   65.1   258   24.0 
2026-08-09 00:00 UT   03 43 50.5   +24 25 03     0.704    1.095   76.9   64.4   258   24.0 
2026-08-10 00:00 UT   03 43 46.5   +24 39 21     0.705    1.106   77.8   63.6   258   24.0 
2026-08-11 00:00 UT   03 43 41.1   +24 53 31     0.707    1.117   78.7   62.9   258   24.0 
2026-08-12 00:00 UT   03 43 34.3   +25 07 33     0.708    1.127   79.7   62.2   258   24.0 
2026-08-13 00:00 UT   03 43 25.7   +25 21 28     0.710    1.138   80.6   61.4   258   24.0 
2026-08-14 00:00 UT   03 43 15.4   +25 35 14     0.711    1.149   81.5   60.7   258   24.0 
2026-08-15 00:00 UT   03 43 03.1   +25 48 53     0.712    1.159   82.5   60.0   258   24.0 
2026-08-16 00:00 UT   03 42 48.8   +26 02 23     0.712    1.170   83.5   59.3   258   24.0 
2026-08-17 00:00 UT   03 42 32.3   +26 15 46     0.713    1.180   84.4   58.6   258   24.0 
2026-08-18 00:00 UT   03 42 13.6   +26 29 00     0.714    1.191   85.4   57.9   257   24.0 
2026-08-19 00:00 UT   03 41 52.4   +26 42 06     0.714    1.201   86.4   57.2   257   24.0 
2026-08-20 00:00 UT   03 41 28.7   +26 55 04     0.714    1.212   87.4   56.5   257   24.0 
2026-08-21 00:00 UT   03 41 02.4   +27 07 53     0.714    1.222   88.4   55.9   257   24.0 
2026-08-22 00:00 UT   03 40 33.4   +27 20 34     0.714    1.232   89.4   55.2   257   24.0 
2026-08-23 00:00 UT   03 40 01.6   +27 33 05     0.714    1.242   90.4   54.5   257   24.0 
2026-08-24 00:00 UT   03 39 26.8   +27 45 28     0.714    1.253   91.4   53.8   256   24.0 
2026-08-25 00:00 UT   03 38 49.0   +27 57 41     0.714    1.263   92.5   53.1   256   24.0 
2026-08-26 00:00 UT   03 38 08.0   +28 09 44     0.714    1.273   93.5   52.4   256   24.0 
2026-08-27 00:00 UT   03 37 23.9   +28 21 37     0.713    1.283   94.6   51.7   256   24.0 
2026-08-28 00:00 UT   03 36 36.4   +28 33 19     0.713    1.293   95.7   51.0   255   24.0 
2026-08-29 00:00 UT   03 35 45.5   +28 44 50     0.712    1.303   96.8   50.3   255   24.0 

    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.