(216) Kleopatra
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	16 Oct 2026	12.6	2.762 AU	2.926 AU	18h10m	-11°19'	70.7°	19.9°
Opposition	15 Nov 2027	9.3	2.117 AU	1.132 AU	03h28m	+11°15'	172.6°	3.5°

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 Kleopatra are:

            e (Eccentricity)                : 0.2501677
            a (Semimajor axis)              : 2.7952727
            i (Inclination)                 : 13.11553
            Ω (Longitude of ascending node) : 215.30982
            ω (Argument of perihelion)      : 179.76980
            M (Mean anomaly)                : 259.85670
            Epoch                           : 2026 Jun 09

            L (Longitude of perihelion)     : 215.08562
            B (Latitude of perihelion)      : 0.05224
            P (Orbital period in years)     : 4.67            
        

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
2026-10-16 00:00 UT   18 10 10.9   -11 19 24     2.926    2.762   70.7   19.9    85   12.6 
2026-10-16 22:34 UT   18 11 17.2   -11 21 32     2.935    2.759   70.1   19.9    84   12.6 
2026-10-17 00:00 UT   18 11 21.5   -11 21 40     2.935    2.759   70.0   19.9    84   12.6 
2026-10-18 00:00 UT   18 12 32.9   -11 23 52     2.945    2.757   69.4   19.8    84   12.6 
2026-10-19 00:00 UT   18 13 45.2   -11 26 01     2.955    2.754   68.7   19.7    84   12.6 
2026-10-20 00:00 UT   18 14 58.2   -11 28 06     2.965    2.751   68.0   19.6    84   12.6 
2026-10-21 00:00 UT   18 16 12.0   -11 30 06     2.974    2.749   67.3   19.5    83   12.6 
2026-10-22 00:00 UT   18 17 26.6   -11 32 03     2.984    2.746   66.7   19.4    83   12.6 
2026-10-23 00:00 UT   18 18 41.9   -11 33 55     2.993    2.744   66.0   19.4    83   12.6 
2026-10-24 00:00 UT   18 19 57.9   -11 35 43     3.003    2.741   65.3   19.3    82   12.6 
2026-10-25 00:00 UT   18 21 14.7   -11 37 27     3.012    2.738   64.7   19.2    82   12.6 
2026-10-26 00:00 UT   18 22 32.2   -11 39 07     3.021    2.736   64.0   19.1    82   12.6 
2026-10-27 00:00 UT   18 23 50.4   -11 40 43     3.030    2.733   63.4   19.0    82   12.6 
2026-10-28 00:00 UT   18 25 09.4   -11 42 14     3.040    2.730   62.7   18.9    81   12.6 
2026-10-29 00:00 UT   18 26 29.0   -11 43 40     3.049    2.728   62.0   18.8    81   12.6 
2026-10-30 00:00 UT   18 27 49.3   -11 45 02     3.058    2.725   61.4   18.7    81   12.6 
2026-10-31 00:00 UT   18 29 10.2   -11 46 20     3.066    2.723   60.7   18.6    81   12.6 
2026-11-01 00:00 UT   18 30 31.9   -11 47 33     3.075    2.720   60.1   18.4    80   12.6 
2026-11-02 00:00 UT   18 31 54.2   -11 48 41     3.084    2.717   59.4   18.3    80   12.6 
2026-11-03 00:00 UT   18 33 17.2   -11 49 44     3.093    2.715   58.8   18.2    80   12.6 
2026-11-04 00:00 UT   18 34 40.8   -11 50 43     3.101    2.712   58.2   18.1    79   12.6 
2026-11-05 00:00 UT   18 36 05.0   -11 51 37     3.110    2.709   57.5   18.0    79   12.6 
2026-11-06 00:00 UT   18 37 29.9   -11 52 26     3.118    2.707   56.9   17.9    79   12.6 
2026-11-07 00:00 UT   18 38 55.4   -11 53 10     3.126    2.704   56.2   17.7    78   12.6 
2026-11-08 00:00 UT   18 40 21.5   -11 53 49     3.135    2.701   55.6   17.6    78   12.6 
2026-11-09 00:00 UT   18 41 48.2   -11 54 23     3.143    2.699   55.0   17.5    78   12.6 
2026-11-10 00:00 UT   18 43 15.5   -11 54 52     3.151    2.696   54.3   17.4    78   12.6 
2026-11-11 00:00 UT   18 44 43.4   -11 55 16     3.159    2.694   53.7   17.2    77   12.6 

    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.