(216) Kleopatra
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	20 Apr 2024	12.5	3.021 AU	2.547 AU	09h10m	+02°28'	108.6°	18.4°
Opposition	20 Apr 2025	11.9	3.490 AU	2.486 AU	13h51m	-13°09'	178.4°	0.5°

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)                : 0.2508999
            a (Semimajor axis)              : 2.7934071
            i (Inclination)                 : 13.12106
            Ω (Longitude of ascending node) : 215.31435
            ω (Argument of perihelion)      : 179.71784
            M (Mean anomaly)                : 91.12859
            Epoch                           : 2024 Mar 31

            L (Longitude of perihelion)     : 215.03956
            B (Latitude of perihelion)      : 0.06405
            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
2024-04-20 00:00 UT   09 10 05.8   +02 28 39     2.547    3.021  108.6   18.4   103   12.5 
2024-04-20 12:03 UT   09 10 18.6   +02 30 36     2.554    3.022  108.2   18.4   103   12.5 
2024-04-21 00:00 UT   09 10 31.6   +02 32 31     2.562    3.023  107.7   18.5   103   12.5 
2024-04-22 00:00 UT   09 10 58.5   +02 36 15     2.577    3.025  106.9   18.5   104   12.5 
2024-04-23 00:00 UT   09 11 26.5   +02 39 52     2.592    3.028  106.0   18.6   104   12.5 
2024-04-24 00:00 UT   09 11 55.5   +02 43 21     2.607    3.030  105.2   18.7   104   12.5 
2024-04-25 00:00 UT   09 12 25.6   +02 46 42     2.622    3.032  104.4   18.7   104   12.6 
2024-04-26 00:00 UT   09 12 56.8   +02 49 56     2.637    3.034  103.5   18.8   105   12.6 
2024-04-27 00:00 UT   09 13 28.9   +02 53 02     2.653    3.037  102.7   18.9   105   12.6 
2024-04-28 00:00 UT   09 14 02.0   +02 56 01     2.668    3.039  101.9   18.9   105   12.6 
2024-04-29 00:00 UT   09 14 36.1   +02 58 52     2.683    3.041  101.0   19.0   105   12.6 
2024-04-30 00:00 UT   09 15 11.2   +03 01 35     2.699    3.043  100.2   19.0   106   12.6 
2024-05-01 00:00 UT   09 15 47.2   +03 04 11     2.714    3.046   99.4   19.0   106   12.6 
2024-05-02 00:00 UT   09 16 24.2   +03 06 40     2.730    3.048   98.6   19.1   106   12.7 
2024-05-03 00:00 UT   09 17 02.1   +03 09 00     2.745    3.050   97.8   19.1   106   12.7 
2024-05-04 00:00 UT   09 17 40.9   +03 11 14     2.761    3.052   97.0   19.1   106   12.7 
2024-05-05 00:00 UT   09 18 20.6   +03 13 20     2.777    3.054   96.2   19.2   107   12.7 
2024-05-06 00:00 UT   09 19 01.2   +03 15 18     2.792    3.057   95.4   19.2   107   12.7 
2024-05-07 00:00 UT   09 19 42.6   +03 17 10     2.808    3.059   94.6   19.2   107   12.7 
2024-05-08 00:00 UT   09 20 24.9   +03 18 53     2.824    3.061   93.8   19.2   107   12.7 
2024-05-09 00:00 UT   09 21 08.0   +03 20 30     2.839    3.063   93.0   19.2   108   12.8 
2024-05-10 00:00 UT   09 21 52.0   +03 21 59     2.855    3.065   92.2   19.2   108   12.8 
2024-05-11 00:00 UT   09 22 36.7   +03 23 21     2.871    3.067   91.5   19.2   108   12.8 
2024-05-12 00:00 UT   09 23 22.3   +03 24 35     2.887    3.070   90.7   19.2   108   12.8 
2024-05-13 00:00 UT   09 24 08.6   +03 25 42     2.902    3.072   89.9   19.2   108   12.8 
2024-05-14 00:00 UT   09 24 55.7   +03 26 43     2.918    3.074   89.1   19.2   109   12.8 
2024-05-15 00:00 UT   09 25 43.5   +03 27 36     2.934    3.076   88.4   19.2   109   12.8 
2024-05-16 00:00 UT   09 26 32.0   +03 28 22     2.950    3.078   87.6   19.2   109   12.9 
2024-05-17 00:00 UT   09 27 21.3   +03 29 01     2.965    3.080   86.9   19.1   109   12.9 
2024-05-18 00:00 UT   09 28 11.2   +03 29 33     2.981    3.082   86.1   19.1   109   12.9 
2024-05-19 00:00 UT   09 29 01.8   +03 29 58     2.997    3.085   85.4   19.1   110   12.9 
2024-05-20 00:00 UT   09 29 53.1   +03 30 17     3.013    3.087   84.6   19.0   110   12.9 

    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.