(84) Klio
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	15 Sep 2025	11.9	1.866 AU	1.042 AU	02h10m	+26°31'	131.4°	23.9°
Opposition	25 Oct 2025	11.3	1.939 AU	0.967 AU	01h36m	+28°32'	162.8°	8.7°

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 Klio are:

            e (Eccentricity)                : 0.2355412
            a (Semimajor axis)              : 2.3626245
            i (Inclination)                 : 9.31350
            Ω (Longitude of ascending node) : 327.49523
            ω (Argument of perihelion)      : 15.08140
            M (Mean anomaly)                : 344.61036
            Epoch                           : 2025 May 05

            L (Longitude of perihelion)     : 342.38671
            B (Latitude of perihelion)      : 2.41335
            P (Orbital period in years)     : 3.63            
        

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
2025-09-15 00:00 UT   02 10 23.7   +26 31 32     1.042    1.866  131.4   23.9   239   11.9 
2025-09-15 14:36 UT   02 10 16.6   +26 37 04     1.038    1.867  131.9   23.6   238   11.9 
2025-09-16 00:00 UT   02 10 11.5   +26 40 35     1.036    1.867  132.3   23.5   238   11.9 
2025-09-17 00:00 UT   02 09 56.8   +26 49 23     1.031    1.869  133.2   23.1   237   11.8 
2025-09-18 00:00 UT   02 09 39.6   +26 57 57     1.027    1.870  134.1   22.7   237   11.8 
2025-09-19 00:00 UT   02 09 19.9   +27 06 16     1.022    1.872  135.0   22.3   236   11.8 
2025-09-20 00:00 UT   02 08 57.7   +27 14 20     1.017    1.874  135.9   21.9   236   11.8 
2025-09-21 00:00 UT   02 08 33.1   +27 22 07     1.013    1.875  136.8   21.5   235   11.8 
2025-09-22 00:00 UT   02 08 06.0   +27 29 39     1.008    1.877  137.7   21.1   234   11.7 
2025-09-23 00:00 UT   02 07 36.6   +27 36 53     1.004    1.878  138.7   20.7   233   11.7 
2025-09-24 00:00 UT   02 07 04.7   +27 43 50     1.000    1.880  139.6   20.2   233   11.7 
2025-09-25 00:00 UT   02 06 30.6   +27 50 30     0.996    1.882  140.5   19.8   232   11.7 
2025-09-26 00:00 UT   02 05 54.2   +27 56 52     0.992    1.883  141.5   19.4   231   11.7 
2025-09-27 00:00 UT   02 05 15.5   +28 02 56     0.989    1.885  142.4   18.9   230   11.6 
2025-09-28 00:00 UT   02 04 34.6   +28 08 40     0.985    1.887  143.4   18.5   229   11.6 
2025-09-29 00:00 UT   02 03 51.7   +28 14 06     0.982    1.889  144.3   18.0   228   11.6 
2025-09-30 00:00 UT   02 03 06.6   +28 19 13     0.979    1.890  145.3   17.6   227   11.6 
2025-10-01 00:00 UT   02 02 19.6   +28 23 59     0.976    1.892  146.2   17.1   226   11.6 
2025-10-02 00:00 UT   02 01 30.6   +28 28 26     0.973    1.894  147.1   16.7   224   11.5 
2025-10-03 00:00 UT   02 00 39.8   +28 32 33     0.971    1.896  148.1   16.2   223   11.5 
2025-10-04 00:00 UT   01 59 47.2   +28 36 18     0.968    1.897  149.0   15.7   222   11.5 
2025-10-05 00:00 UT   01 58 52.9   +28 39 44     0.966    1.899  149.9   15.3   220   11.5 
2025-10-06 00:00 UT   01 57 57.0   +28 42 48     0.964    1.901  150.9   14.8   219   11.5 
2025-10-07 00:00 UT   01 56 59.6   +28 45 31     0.962    1.903  151.8   14.4   217   11.4 
2025-10-08 00:00 UT   01 56 00.8   +28 47 53     0.961    1.905  152.7   13.9   216   11.4 
2025-10-09 00:00 UT   01 55 00.6   +28 49 53     0.959    1.907  153.5   13.5   214   11.4 
2025-10-10 00:00 UT   01 53 59.2   +28 51 32     0.958    1.908  154.4   13.1   212   11.4 
2025-10-11 00:00 UT   01 52 56.7   +28 52 49     0.957    1.910  155.3   12.6   210   11.4 
2025-10-12 00:00 UT   01 51 53.2   +28 53 44     0.956    1.912  156.1   12.2   207   11.4 
2025-10-13 00:00 UT   01 50 48.7   +28 54 18     0.956    1.914  156.9   11.8   205   11.3 
2025-10-14 00:00 UT   01 49 43.5   +28 54 30     0.955    1.916  157.7   11.4   203   11.3 
2025-10-15 00:00 UT   01 48 37.6   +28 54 21     0.955    1.918  158.4   11.0   200   11.3 

    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.