(264) Libussa
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	14 Apr 2026	13.9	2.769 AU	2.981 AU	21h24m	-24°33'	68.2°	19.6°
Opposition	17 Aug 2026	11.9	2.598 AU	1.613 AU	22h15m	-28°53'	163.1°	6.5°

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 Libussa are:

            e (Eccentricity)                : 0.1350899
            a (Semimajor axis)              : 2.7991204
            i (Inclination)                 : 10.42509
            Ω (Longitude of ascending node) : 49.49046
            ω (Argument of perihelion)      : 340.01203
            M (Mean anomaly)                : 251.94773
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 29.80690
            B (Latitude of perihelion)      : -3.54617
            P (Orbital period in years)     : 4.68            
        

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
2026-04-14 00:00 UT   21 24 36.2   -24 33 51     2.981    2.769   68.2   19.6   248   13.9 
2026-04-14 15:51 UT   21 25 32.6   -24 31 43     2.972    2.768   68.6   19.7   248   13.9 
2026-04-15 00:00 UT   21 26 01.5   -24 30 37     2.967    2.768   68.8   19.8   248   13.9 
2026-04-16 00:00 UT   21 27 26.2   -24 27 26     2.954    2.766   69.5   19.9   248   13.8 
2026-04-17 00:00 UT   21 28 50.4   -24 24 16     2.940    2.765   70.1   20.0   248   13.8 
2026-04-18 00:00 UT   21 30 14.0   -24 21 09     2.927    2.764   70.8   20.1   248   13.8 
2026-04-19 00:00 UT   21 31 37.0   -24 18 04     2.913    2.762   71.4   20.2   248   13.8 
2026-04-20 00:00 UT   21 32 59.5   -24 15 02     2.899    2.761   72.1   20.3   248   13.8 
2026-04-21 00:00 UT   21 34 21.4   -24 12 02     2.886    2.759   72.7   20.3   248   13.8 
2026-04-22 00:00 UT   21 35 42.7   -24 09 05     2.872    2.758   73.4   20.4   248   13.8 
2026-04-23 00:00 UT   21 37 03.4   -24 06 11     2.858    2.757   74.0   20.5   248   13.8 
2026-04-24 00:00 UT   21 38 23.5   -24 03 20     2.844    2.755   74.7   20.6   248   13.8 
2026-04-25 00:00 UT   21 39 43.1   -24 00 32     2.830    2.754   75.4   20.7   248   13.8 
2026-04-26 00:00 UT   21 41 02.0   -23 57 46     2.816    2.752   76.0   20.8   248   13.8 
2026-04-27 00:00 UT   21 42 20.3   -23 55 04     2.802    2.751   76.7   20.9   248   13.8 
2026-04-28 00:00 UT   21 43 37.9   -23 52 26     2.788    2.750   77.4   20.9   248   13.7 
2026-04-29 00:00 UT   21 44 55.0   -23 49 50     2.774    2.748   78.0   21.0   248   13.7 
2026-04-30 00:00 UT   21 46 11.4   -23 47 18     2.760    2.747   78.7   21.1   248   13.7 
2026-05-01 00:00 UT   21 47 27.1   -23 44 50     2.746    2.745   79.4   21.1   248   13.7 
2026-05-02 00:00 UT   21 48 42.2   -23 42 25     2.732    2.744   80.0   21.2   248   13.7 
2026-05-03 00:00 UT   21 49 56.7   -23 40 05     2.718    2.743   80.7   21.3   248   13.7 
2026-05-04 00:00 UT   21 51 10.4   -23 37 48     2.704    2.741   81.4   21.3   248   13.7 
2026-05-05 00:00 UT   21 52 23.5   -23 35 35     2.690    2.740   82.1   21.4   249   13.7 
2026-05-06 00:00 UT   21 53 35.9   -23 33 26     2.676    2.738   82.8   21.4   249   13.7 
2026-05-07 00:00 UT   21 54 47.6   -23 31 22     2.662    2.737   83.5   21.5   249   13.6 
2026-05-08 00:00 UT   21 55 58.6   -23 29 22     2.648    2.736   84.1   21.5   249   13.6 
2026-05-09 00:00 UT   21 57 08.8   -23 27 26     2.634    2.734   84.8   21.6   249   13.6 
2026-05-10 00:00 UT   21 58 18.3   -23 25 35     2.619    2.733   85.5   21.6   249   13.6 
2026-05-11 00:00 UT   21 59 27.1   -23 23 49     2.605    2.731   86.2   21.6   249   13.6 
2026-05-12 00:00 UT   22 00 35.1   -23 22 08     2.591    2.730   86.9   21.7   249   13.6 

    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.