(264) Libussa
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	28 May 2026	13.4	2.708 AU	2.366 AU	22h16m	-23°07'	98.5°	21.7°
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
2026-05-28 00:00 UT   22 16 49.0   -23 07 51     2.366    2.708   98.5   21.7   250   13.4 
2026-05-28 16:46 UT   22 17 26.2   -23 07 50     2.357    2.707   99.0   21.7   250   13.4 
2026-05-29 00:00 UT   22 17 42.1   -23 07 51     2.352    2.706   99.2   21.7   250   13.4 
2026-05-30 00:00 UT   22 18 34.2   -23 07 57     2.339    2.705  100.0   21.7   251   13.3 
2026-05-31 00:00 UT   22 19 25.4   -23 08 09     2.325    2.703  100.7   21.6   251   13.3 
2026-06-01 00:00 UT   22 20 15.5   -23 08 29     2.311    2.702  101.5   21.6   251   13.3 
2026-06-02 00:00 UT   22 21 04.6   -23 08 56     2.297    2.701  102.2   21.5   251   13.3 
2026-06-03 00:00 UT   22 21 52.6   -23 09 30     2.284    2.699  103.0   21.5   251   13.3 
2026-06-04 00:00 UT   22 22 39.6   -23 10 12     2.270    2.698  103.8   21.4   251   13.3 
2026-06-05 00:00 UT   22 23 25.5   -23 11 01     2.257    2.696  104.5   21.4   251   13.3 
2026-06-06 00:00 UT   22 24 10.2   -23 11 57     2.243    2.695  105.3   21.3   252   13.2 
2026-06-07 00:00 UT   22 24 53.9   -23 13 01     2.230    2.694  106.1   21.2   252   13.2 
2026-06-08 00:00 UT   22 25 36.5   -23 14 12     2.216    2.692  106.9   21.1   252   13.2 
2026-06-09 00:00 UT   22 26 17.9   -23 15 32     2.203    2.691  107.7   21.1   252   13.2 
2026-06-10 00:00 UT   22 26 58.1   -23 16 59     2.190    2.690  108.5   21.0   252   13.2 
2026-06-11 00:00 UT   22 27 37.1   -23 18 34     2.177    2.688  109.3   20.9   252   13.2 
2026-06-12 00:00 UT   22 28 14.9   -23 20 17     2.164    2.687  110.1   20.8   253   13.1 
2026-06-13 00:00 UT   22 28 51.5   -23 22 08     2.151    2.685  110.9   20.7   253   13.1 
2026-06-14 00:00 UT   22 29 26.8   -23 24 08     2.138    2.684  111.7   20.6   253   13.1 
2026-06-15 00:00 UT   22 30 00.9   -23 26 15     2.125    2.683  112.5   20.5   253   13.1 
2026-06-16 00:00 UT   22 30 33.7   -23 28 31     2.112    2.681  113.3   20.4   254   13.1 
2026-06-17 00:00 UT   22 31 05.2   -23 30 55     2.099    2.680  114.1   20.2   254   13.0 
2026-06-18 00:00 UT   22 31 35.3   -23 33 27     2.087    2.679  114.9   20.1   254   13.0 
2026-06-19 00:00 UT   22 32 04.2   -23 36 07     2.074    2.677  115.8   20.0   254   13.0 
2026-06-20 00:00 UT   22 32 31.7   -23 38 56     2.062    2.676  116.6   19.8   255   13.0 
2026-06-21 00:00 UT   22 32 57.8   -23 41 52     2.049    2.674  117.4   19.7   255   13.0 
2026-06-22 00:00 UT   22 33 22.6   -23 44 57     2.037    2.673  118.3   19.6   255   13.0 
2026-06-23 00:00 UT   22 33 46.0   -23 48 10     2.025    2.672  119.1   19.4   255   12.9 
2026-06-24 00:00 UT   22 34 07.9   -23 51 31     2.013    2.670  120.0   19.2   256   12.9 
2026-06-25 00:00 UT   22 34 28.5   -23 55 00     2.001    2.669  120.8   19.1   256   12.9 
2026-06-26 00:00 UT   22 34 47.6   -23 58 38     1.989    2.668  121.7   18.9   256   12.9 
2026-06-27 00:00 UT   22 35 05.3   -24 02 23     1.978    2.666  122.6   18.7   257   12.9 

    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.