(22) Kalliope
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	29 Aug 2026	12.2	2.624 AU	2.918 AU	06h09m	+24°44'	63.3°	20.1°
Opposition	2 Jan 2027	10.5	2.673 AU	1.705 AU	06h56m	+35°36'	167.2°	4.7°

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 Kalliope are:

            e (Eccentricity)                : 0.0988425
            a (Semimajor axis)              : 2.9091658
            i (Inclination)                 : 13.70213
            Ω (Longitude of ascending node) : 65.96538
            ω (Argument of perihelion)      : 358.31241
            M (Mean anomaly)                : 350.32839
            Epoch                           : 2026 Jun 09

            L (Longitude of perihelion)     : 64.32579
            B (Latitude of perihelion)      : -0.39969
            P (Orbital period in years)     : 4.96            
        

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
2026-08-29 00:00 UT   06 09 07.1   +24 44 01     2.918    2.624   63.3   20.1   272   12.2 
2026-08-29 17:34 UT   06 10 13.9   +24 46 16     2.910    2.624   63.7   20.2   272   12.2 
2026-08-30 00:00 UT   06 10 38.3   +24 47 05     2.907    2.624   63.9   20.2   272   12.2 
2026-08-31 00:00 UT   06 12 09.1   +24 50 07     2.895    2.624   64.5   20.3   272   12.2 
2026-09-01 00:00 UT   06 13 39.4   +24 53 08     2.884    2.624   65.1   20.4   272   12.2 
2026-09-02 00:00 UT   06 15 09.2   +24 56 08     2.872    2.624   65.8   20.5   272   12.2 
2026-09-03 00:00 UT   06 16 38.5   +24 59 06     2.860    2.625   66.4   20.6   272   12.2 
2026-09-04 00:00 UT   06 18 07.2   +25 02 03     2.849    2.625   67.0   20.7   273   12.2 
2026-09-05 00:00 UT   06 19 35.4   +25 04 59     2.837    2.625   67.7   20.8   273   12.2 
2026-09-06 00:00 UT   06 21 03.1   +25 07 55     2.825    2.625   68.3   20.9   273   12.2 
2026-09-07 00:00 UT   06 22 30.2   +25 10 49     2.813    2.625   69.0   21.0   273   12.2 
2026-09-08 00:00 UT   06 23 56.8   +25 13 43     2.801    2.625   69.6   21.1   273   12.2 
2026-09-09 00:00 UT   06 25 22.7   +25 16 36     2.789    2.626   70.3   21.2   273   12.1 
2026-09-10 00:00 UT   06 26 48.0   +25 19 29     2.777    2.626   70.9   21.3   273   12.1 
2026-09-11 00:00 UT   06 28 12.7   +25 22 21     2.765    2.626   71.6   21.3   273   12.1 
2026-09-12 00:00 UT   06 29 36.8   +25 25 13     2.752    2.626   72.2   21.4   274   12.1 
2026-09-13 00:00 UT   06 31 00.2   +25 28 04     2.740    2.626   72.9   21.5   274   12.1 
2026-09-14 00:00 UT   06 32 23.0   +25 30 56     2.728    2.627   73.5   21.6   274   12.1 
2026-09-15 00:00 UT   06 33 45.1   +25 33 48     2.716    2.627   74.2   21.6   274   12.1 
2026-09-16 00:00 UT   06 35 06.5   +25 36 40     2.703    2.627   74.9   21.7   274   12.1 
2026-09-17 00:00 UT   06 36 27.2   +25 39 32     2.691    2.627   75.6   21.7   274   12.1 
2026-09-18 00:00 UT   06 37 47.2   +25 42 24     2.678    2.627   76.2   21.8   274   12.1 
2026-09-19 00:00 UT   06 39 06.5   +25 45 17     2.666    2.628   76.9   21.9   274   12.1 
2026-09-20 00:00 UT   06 40 25.0   +25 48 11     2.653    2.628   77.6   21.9   275   12.1 
2026-09-21 00:00 UT   06 41 42.8   +25 51 05     2.641    2.628   78.3   22.0   275   12.1 
2026-09-22 00:00 UT   06 42 59.8   +25 54 00     2.628    2.628   79.0   22.0   275   12.0 
2026-09-23 00:00 UT   06 44 16.0   +25 56 56     2.616    2.629   79.7   22.1   275   12.0 
2026-09-24 00:00 UT   06 45 31.5   +25 59 53     2.603    2.629   80.4   22.1   275   12.0 

    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.