(264) Libussa
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Opposition	17 Aug 2026	11.9	2.598 AU	1.613 AU	22h15m	-28°53'	163.1°	6.5°
Today	21 Aug 2026	11.9	2.594 AU	1.610 AU	22h12m	-29°08'	162.9°	6.6°

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)                : 0.1349765
            a (Semimajor axis)              : 2.7991430
            i (Inclination)                 : 10.42436
            Ω (Longitude of ascending node) : 49.48389
            ω (Argument of perihelion)      : 340.01197
            M (Mean anomaly)                : 294.03313
            Epoch                           : 2026 Jun 09

            L (Longitude of perihelion)     : 29.80023
            B (Latitude of perihelion)      : -3.54593
            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
2026-08-21 00:00 UT   22 12 34.5   -29 08 39     1.610    2.594  162.9    6.6   349   11.9 
2026-08-21 01:15 UT   22 12 31.6   -29 08 51     1.610    2.594  162.9    6.6   349   11.9 
2026-08-22 00:00 UT   22 11 38.7   -29 12 38     1.610    2.593  162.6    6.7   353   11.9 
2026-08-23 00:00 UT   22 10 42.7   -29 16 26     1.610    2.591  162.3    6.8   357   11.9 
2026-08-24 00:00 UT   22 09 46.6   -29 20 02     1.610    2.590  162.0    6.9     0   11.9 
2026-08-25 00:00 UT   22 08 50.5   -29 23 25     1.610    2.589  161.5    7.1     4   11.9 
2026-08-26 00:00 UT   22 07 54.5   -29 26 36     1.611    2.588  161.0    7.3     7   11.9 
2026-08-27 00:00 UT   22 06 58.5   -29 29 34     1.612    2.586  160.5    7.5    11   11.9 
2026-08-28 00:00 UT   22 06 02.8   -29 32 19     1.613    2.585  159.9    7.7    14   11.9 
2026-08-29 00:00 UT   22 05 07.3   -29 34 50     1.615    2.584  159.2    8.0    17   11.9 
2026-08-30 00:00 UT   22 04 12.1   -29 37 08     1.616    2.583  158.6    8.2    19   12.0 
2026-08-31 00:00 UT   22 03 17.4   -29 39 13     1.618    2.581  157.8    8.5    22   12.0 
2026-09-01 00:00 UT   22 02 23.1   -29 41 04     1.620    2.580  157.1    8.8    24   12.0 
2026-09-02 00:00 UT   22 01 29.3   -29 42 40     1.623    2.579  156.3    9.0    26   12.0 
2026-09-03 00:00 UT   22 00 36.2   -29 44 03     1.626    2.578  155.5    9.3    29   12.0 
2026-09-04 00:00 UT   21 59 43.7   -29 45 12     1.629    2.577  154.7    9.6    31   12.0 
2026-09-05 00:00 UT   21 58 52.0   -29 46 06     1.632    2.575  153.8    9.9    32   12.0 
2026-09-06 00:00 UT   21 58 01.0   -29 46 46     1.635    2.574  153.0   10.3    34   12.1 
2026-09-07 00:00 UT   21 57 11.0   -29 47 12     1.639    2.573  152.1   10.6    36   12.1 
2026-09-08 00:00 UT   21 56 21.8   -29 47 24     1.643    2.572  151.2   10.9    37   12.1 
2026-09-09 00:00 UT   21 55 33.7   -29 47 21     1.647    2.571  150.3   11.2    39   12.1 
2026-09-10 00:00 UT   21 54 46.7   -29 47 04     1.651    2.569  149.4   11.5    40   12.1 
2026-09-11 00:00 UT   21 54 00.7   -29 46 32     1.656    2.568  148.4   11.8    42   12.1 
2026-09-12 00:00 UT   21 53 16.0   -29 45 47     1.660    2.567  147.5   12.2    43   12.2 
2026-09-13 00:00 UT   21 52 32.4   -29 44 47     1.665    2.566  146.6   12.5    44   12.2 
2026-09-14 00:00 UT   21 51 50.2   -29 43 33     1.670    2.565  145.6   12.8    45   12.2 
2026-09-15 00:00 UT   21 51 09.3   -29 42 05     1.676    2.563  144.7   13.1    46   12.2 
2026-09-16 00:00 UT   21 50 29.8   -29 40 24     1.681    2.562  143.7   13.4    47   12.2 
2026-09-17 00:00 UT   21 49 51.7   -29 38 29     1.687    2.561  142.8   13.7    48   12.2 
2026-09-18 00:00 UT   21 49 15.1   -29 36 20     1.693    2.560  141.8   14.0    49   12.3 
2026-09-19 00:00 UT   21 48 39.9   -29 33 59     1.699    2.559  140.9   14.3    50   12.3 
2026-09-20 00:00 UT   21 48 06.3   -29 31 24     1.706    2.557  139.9   14.6    51   12.3 

    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.