(156) Xanthippe
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	16 Jul 2026	13.7	2.203 AU	2.692 AU	10h50m	+00°07'	51.2°	21.1°
Opposition	27 Jul 2027	12.2	2.539 AU	1.543 AU	20h13m	-05°07'	165.6°	5.7°

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 Xanthippe are:

            e (Eccentricity)                : 0.2215476
            a (Semimajor axis)              : 2.7326620
            i (Inclination)                 : 9.76268
            Ω (Longitude of ascending node) : 241.70331
            ω (Argument of perihelion)      : 338.96732
            M (Mean anomaly)                : 329.13047
            Epoch                           : 2026 Jun 09

            L (Longitude of perihelion)     : 220.94910
            B (Latitude of perihelion)      : -3.48906
            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
2026-07-16 00:00 UT   10 50 52.3   +00 07 25     2.692    2.203   51.2   21.1   118   13.7 
2026-07-16 00:25 UT   10 50 54.2   +00 07 16     2.693    2.203   51.2   21.1   118   13.7 
2026-07-17 00:00 UT   10 52 40.5   +00 00 44     2.700    2.201   50.7   20.9   118   13.7 
2026-07-18 00:00 UT   10 54 29.0   +00 08 58     2.707    2.200   50.2   20.8   118   13.7 
2026-07-19 00:00 UT   10 56 17.8   +00 17 16     2.714    2.199   49.8   20.7   118   13.7 
2026-07-20 00:00 UT   10 58 07.0   +00 25 38     2.721    2.197   49.3   20.5   118   13.7 
2026-07-21 00:00 UT   10 59 56.4   +00 34 05     2.728    2.196   48.8   20.4   118   13.7 
2026-07-22 00:00 UT   11 01 46.2   +00 42 36     2.735    2.195   48.3   20.2   119   13.7 
2026-07-23 00:00 UT   11 03 36.2   +00 51 11     2.742    2.193   47.9   20.1   119   13.7 
2026-07-24 00:00 UT   11 05 26.6   +00 59 50     2.749    2.192   47.4   19.9   119   13.7 
2026-07-25 00:00 UT   11 07 17.2   -01 08 33     2.755    2.191   46.9   19.8   119   13.7 
2026-07-26 00:00 UT   11 09 08.1   -01 17 20     2.762    2.190   46.4   19.6   119   13.7 
2026-07-27 00:00 UT   11 10 59.4   -01 26 11     2.769    2.188   46.0   19.5   119   13.7 
2026-07-28 00:00 UT   11 12 50.9   -01 35 06     2.775    2.187   45.5   19.3   119   13.7 
2026-07-29 00:00 UT   11 14 42.6   -01 44 04     2.782    2.186   45.0   19.2   119   13.7 
2026-07-30 00:00 UT   11 16 34.7   -01 53 07     2.788    2.185   44.6   19.0   119   13.7 
2026-07-31 00:00 UT   11 18 27.0   -02 02 12     2.795    2.183   44.1   18.9   119   13.7 
2026-08-01 00:00 UT   11 20 19.6   -02 11 21     2.801    2.182   43.7   18.7   119   13.7 
2026-08-02 00:00 UT   11 22 12.5   -02 20 34     2.807    2.181   43.2   18.6   120   13.7 

    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.