(264) Libussa
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Opposition	14 May 2025	12.5	3.132 AU	2.122 AU	15h26m	-20°06'	178.5°	0.5°
Today	2 Jul 2025	13.5	3.100 AU	2.381 AU	14h54m	-19°47'	126.9°	15.2°

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)                : 0.1352220
            a (Semimajor axis)              : 2.7989210
            i (Inclination)                 : 10.42613
            Ω (Longitude of ascending node) : 49.49279
            ω (Argument of perihelion)      : 340.00829
            M (Mean anomaly)                : 209.86664
            Epoch                           : 2025 May 05

            L (Longitude of perihelion)     : 29.80560
            B (Latitude of perihelion)      : -3.54715
            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. A more printer-friendly version of the same chart can be found below.

Ephemerides:

Date       Time       RA (2000)    DEC (2000)    delta   radius  elong  phase   PA    magn
2025-07-02 00:00 UT   14 54 23.9   -19 47 43     2.381    3.100  126.9   15.2   104   13.5 
2025-07-02 01:32 UT   14 54 23.2   -19 47 46     2.382    3.100  126.8   15.2   104   13.5 
2025-07-03 00:00 UT   14 54 13.1   -19 48 31     2.392    3.099  125.9   15.4   105   13.5 
2025-07-04 00:00 UT   14 54 03.6   -19 49 23     2.402    3.098  124.9   15.6   105   13.5 
2025-07-05 00:00 UT   14 53 55.6   -19 50 19     2.413    3.097  123.9   15.8   105   13.5 
2025-07-06 00:00 UT   14 53 49.0   -19 51 20     2.424    3.097  123.0   16.0   105   13.6 
2025-07-07 00:00 UT   14 53 43.7   -19 52 25     2.435    3.096  122.0   16.2   105   13.6 
2025-07-08 00:00 UT   14 53 39.9   -19 53 35     2.446    3.095  121.0   16.3   105   13.6 
2025-07-09 00:00 UT   14 53 37.5   -19 54 49     2.457    3.094  120.1   16.5   105   13.6 
2025-07-10 00:00 UT   14 53 36.4   -19 56 08     2.469    3.093  119.1   16.7   105   13.6 
2025-07-11 00:00 UT   14 53 36.7   -19 57 31     2.480    3.093  118.2   16.8   105   13.6 
2025-07-12 00:00 UT   14 53 38.4   -19 58 58     2.492    3.092  117.2   17.0   105   13.6 
2025-07-13 00:00 UT   14 53 41.5   -20 00 30     2.503    3.091  116.3   17.1   105   13.7 
2025-07-14 00:00 UT   14 53 45.9   -20 02 07     2.515    3.090  115.4   17.3   105   13.7 
2025-07-15 00:00 UT   14 53 51.6   -20 03 47     2.527    3.089  114.5   17.4   105   13.7 
2025-07-16 00:00 UT   14 53 58.7   -20 05 33     2.539    3.089  113.5   17.6   105   13.7 
2025-07-17 00:00 UT   14 54 07.2   -20 07 22     2.551    3.088  112.6   17.7   105   13.7 
2025-07-18 00:00 UT   14 54 16.9   -20 09 16     2.563    3.087  111.7   17.8   105   13.7 
2025-07-19 00:00 UT   14 54 28.0   -20 11 14     2.575    3.086  110.8   17.9   105   13.7 
2025-07-20 00:00 UT   14 54 40.3   -20 13 17     2.588    3.085  109.9   18.0   106   13.8 
2025-07-21 00:00 UT   14 54 54.0   -20 15 24     2.600    3.085  109.0   18.1   106   13.8 
2025-07-22 00:00 UT   14 55 09.0   -20 17 35     2.612    3.084  108.1   18.2   106   13.8 
2025-07-23 00:00 UT   14 55 25.2   -20 19 50     2.625    3.083  107.3   18.3   106   13.8 
2025-07-24 00:00 UT   14 55 42.7   -20 22 10     2.637    3.082  106.4   18.4   106   13.8 
2025-07-25 00:00 UT   14 56 01.5   -20 24 33     2.650    3.081  105.5   18.5   106   13.8 
2025-07-26 00:00 UT   14 56 21.6   -20 27 01     2.663    3.080  104.6   18.6   106   13.8 
2025-07-27 00:00 UT   14 56 42.9   -20 29 33     2.675    3.080  103.8   18.7   106   13.8 
2025-07-28 00:00 UT   14 57 05.4   -20 32 09     2.688    3.079  102.9   18.8   106   13.9 
2025-07-29 00:00 UT   14 57 29.1   -20 34 49     2.701    3.078  102.1   18.8   106   13.9 
2025-07-30 00:00 UT   14 57 54.0   -20 37 33     2.714    3.077  101.2   18.9   106   13.9 
2025-07-31 00:00 UT   14 58 20.2   -20 40 21     2.727    3.076  100.4   18.9   106   13.9 
2025-08-01 00:00 UT   14 58 47.5   -20 43 12     2.740    3.075   99.5   19.0   106   13.9 

    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.