(156) Xanthippe
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	27 Oct 2025	14.3	2.761 AU	2.793 AU	09h03m	+08°42'	77.9°	20.6°
Opposition	7 Feb 2026	12.2	2.518 AU	1.554 AU	09h06m	+00°18'	164.4°	6.0°

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 Xanthippe are:

            e (Eccentricity)                : 0.2217992
            a (Semimajor axis)              : 2.7342473
            i (Inclination)                 : 9.76368
            Ω (Longitude of ascending node) : 241.72687
            ω (Argument of perihelion)      : 338.82624
            M (Mean anomaly)                : 285.63729
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 220.83316
            B (Latitude of perihelion)      : -3.51177
            P (Orbital period in years)     : 4.52            
        

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
2025-10-27 00:00 UT   09 03 23.4   +08 42 52     2.793    2.761   77.9   20.6   285   14.3 
2025-10-27 12:33 UT   09 03 55.1   +08 38 36     2.785    2.760   78.3   20.6   285   14.3 
2025-10-28 00:00 UT   09 04 23.8   +08 34 44     2.777    2.759   78.6   20.7   285   14.3 
2025-10-29 00:00 UT   09 05 23.6   +08 26 35     2.762    2.756   79.3   20.7   285   14.2 
2025-10-30 00:00 UT   09 06 22.6   +08 18 26     2.746    2.754   80.0   20.8   286   14.2 
2025-10-31 00:00 UT   09 07 20.8   +08 10 17     2.731    2.752   80.7   20.9   286   14.2 
2025-11-01 00:00 UT   09 08 18.3   +08 02 07     2.715    2.749   81.5   20.9   286   14.2 
2025-11-02 00:00 UT   09 09 15.0   +07 53 58     2.700    2.747   82.2   21.0   286   14.2 
2025-11-03 00:00 UT   09 10 10.9   +07 45 48     2.684    2.745   82.9   21.0   286   14.2 
2025-11-04 00:00 UT   09 11 06.1   +07 37 38     2.669    2.742   83.7   21.1   286   14.2 
2025-11-05 00:00 UT   09 12 00.4   +07 29 28     2.653    2.740   84.4   21.1   287   14.2 
2025-11-06 00:00 UT   09 12 53.9   +07 21 18     2.637    2.738   85.1   21.1   287   14.1 
2025-11-07 00:00 UT   09 13 46.5   +07 13 08     2.622    2.736   85.9   21.2   287   14.1 
2025-11-08 00:00 UT   09 14 38.3   +07 04 59     2.606    2.733   86.6   21.2   287   14.1 
2025-11-09 00:00 UT   09 15 29.3   +06 56 50     2.591    2.731   87.4   21.2   287   14.1 
2025-11-10 00:00 UT   09 16 19.4   +06 48 42     2.575    2.729   88.1   21.3   287   14.1 
2025-11-11 00:00 UT   09 17 08.6   +06 40 34     2.559    2.726   88.9   21.3   288   14.1 
2025-11-12 00:00 UT   09 17 56.8   +06 32 26     2.544    2.724   89.7   21.3   288   14.1 
2025-11-13 00:00 UT   09 18 44.2   +06 24 20     2.528    2.722   90.4   21.3   288   14.0 
2025-11-14 00:00 UT   09 19 30.6   +06 16 15     2.512    2.719   91.2   21.3   288   14.0 
2025-11-15 00:00 UT   09 20 16.0   +06 08 10     2.497    2.717   92.0   21.3   288   14.0 
2025-11-16 00:00 UT   09 21 00.5   +06 00 07     2.481    2.715   92.7   21.3   288   14.0 
2025-11-17 00:00 UT   09 21 43.9   +05 52 05     2.466    2.712   93.5   21.3   289   14.0 
2025-11-18 00:00 UT   09 22 26.4   +05 44 05     2.450    2.710   94.3   21.3   289   14.0 
2025-11-19 00:00 UT   09 23 07.8   +05 36 06     2.434    2.708   95.1   21.3   289   13.9 
2025-11-20 00:00 UT   09 23 48.2   +05 28 08     2.419    2.705   95.9   21.3   289   13.9 
2025-11-21 00:00 UT   09 24 27.5   +05 20 13     2.403    2.703   96.7   21.3   289   13.9 
2025-11-22 00:00 UT   09 25 05.7   +05 12 20     2.388    2.701   97.5   21.3   290   13.9 
2025-11-23 00:00 UT   09 25 42.9   +05 04 28     2.373    2.698   98.3   21.2   290   13.9 
2025-11-24 00:00 UT   09 26 18.9   +04 56 39     2.357    2.696   99.1   21.2   290   13.9 
2025-11-25 00:00 UT   09 26 53.9   +04 48 52     2.342    2.694   99.9   21.2   290   13.8 
2025-11-26 00:00 UT   09 27 27.6   +04 41 08     2.326    2.691  100.8   21.1   290   13.8 

    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.