(216) Kleopatra
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	12 Jul 2025	13.2	3.488 AU	3.257 AU	13h31m	-08°02'	94.6°	16.9°
Opposition	21 Jun 2026	11.5	3.044 AU	2.055 AU	18h03m	-07°16'	163.8°	5.3°

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)                : 0.2505210
            a (Semimajor axis)              : 2.7945267
            i (Inclination)                 : 13.11906
            Ω (Longitude of ascending node) : 215.31769
            ω (Argument of perihelion)      : 179.77486
            M (Mean anomaly)                : 175.48668
            Epoch                           : 2025 May 05

            L (Longitude of perihelion)     : 215.09843
            B (Latitude of perihelion)      : 0.05110
            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. A more printer-friendly version of the same chart can be found below.

Ephemerides:

Date       Time       RA (2000)    DEC (2000)    delta   radius  elong  phase   PA    magn
2025-07-12 00:00 UT   13 31 31.4   -08 02 20     3.257    3.488   94.6   16.9   112   13.2 
2025-07-12 06:43 UT   13 31 38.7   -08 02 36     3.261    3.488   94.3   16.9   112   13.2 
2025-07-13 00:00 UT   13 31 58.0   -08 03 18     3.271    3.488   93.7   16.9   112   13.2 
2025-07-14 00:00 UT   13 32 25.4   -08 04 22     3.285    3.487   92.9   16.9   112   13.2 
2025-07-15 00:00 UT   13 32 53.7   -08 05 31     3.300    3.487   92.0   16.9   111   13.2 
2025-07-16 00:00 UT   13 33 22.9   -08 06 46     3.314    3.487   91.2   16.9   111   13.3 
2025-07-17 00:00 UT   13 33 52.9   -08 08 07     3.328    3.487   90.4   16.9   111   13.3 
2025-07-18 00:00 UT   13 34 23.7   -08 09 33     3.343    3.486   89.6   16.9   111   13.3 
2025-07-19 00:00 UT   13 34 55.3   -08 11 04     3.357    3.486   88.7   16.9   111   13.3 
2025-07-20 00:00 UT   13 35 27.7   -08 12 41     3.371    3.486   87.9   16.9   111   13.3 
2025-07-21 00:00 UT   13 36 01.0   -08 14 23     3.386    3.485   87.1   16.9   111   13.3 
2025-07-22 00:00 UT   13 36 35.0   -08 16 10     3.400    3.485   86.3   16.9   111   13.3 
2025-07-23 00:00 UT   13 37 09.8   -08 18 02     3.414    3.485   85.5   16.9   111   13.3 
2025-07-24 00:00 UT   13 37 45.4   -08 19 59     3.429    3.484   84.7   16.9   111   13.3 
2025-07-25 00:00 UT   13 38 21.8   -08 22 01     3.443    3.484   83.9   16.9   111   13.3 
2025-07-26 00:00 UT   13 38 58.9   -08 24 08     3.457    3.483   83.1   16.8   111   13.3 
2025-07-27 00:00 UT   13 39 36.7   -08 26 20     3.471    3.483   82.3   16.8   111   13.3 
2025-07-28 00:00 UT   13 40 15.3   -08 28 36     3.485    3.483   81.5   16.8   111   13.4 
2025-07-29 00:00 UT   13 40 54.7   -08 30 56     3.499    3.482   80.7   16.7   111   13.4 
2025-07-30 00:00 UT   13 41 34.7   -08 33 21     3.514    3.482   79.9   16.7   111   13.4 
2025-07-31 00:00 UT   13 42 15.5   -08 35 50     3.528    3.482   79.1   16.6   111   13.4 
2025-08-01 00:00 UT   13 42 56.9   -08 38 24     3.542    3.481   78.3   16.6   111   13.4 
2025-08-02 00:00 UT   13 43 39.0   -08 41 01     3.555    3.481   77.6   16.5   111   13.4 
2025-08-03 00:00 UT   13 44 21.9   -08 43 43     3.569    3.480   76.8   16.5   110   13.4 
2025-08-04 00:00 UT   13 45 05.3   -08 46 28     3.583    3.480   76.0   16.4   110   13.4 
2025-08-05 00:00 UT   13 45 49.5   -08 49 18     3.597    3.479   75.2   16.4   110   13.4 
2025-08-06 00:00 UT   13 46 34.3   -08 52 11     3.611    3.479   74.5   16.3   110   13.4 
2025-08-07 00:00 UT   13 47 19.7   -08 55 07     3.624    3.479   73.7   16.2   110   13.4 
2025-08-08 00:00 UT   13 48 05.8   -08 58 08     3.638    3.478   72.9   16.2   110   13.4 
2025-08-09 00:00 UT   13 48 52.5   -09 01 11     3.651    3.478   72.2   16.1   110   13.4 
2025-08-10 00:00 UT   13 49 39.8   -09 04 19     3.665    3.477   71.4   16.0   110   13.4 
2025-08-11 00:00 UT   13 50 27.8   -09 07 29     3.678    3.477   70.7   16.0   110   13.4 

    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.