(563) Suleika
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	20 Dec 2025	14.7	3.258 AU	3.950 AU	15h10m	-11°14'	40.0°	11.2°
Opposition	19 May 2026	13.1	3.351 AU	2.344 AU	15h52m	-13°29'	173.4°	2.0°

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 Suleika are:

            e (Eccentricity)                : 0.2363577
            a (Semimajor axis)              : 2.7117273
            i (Inclination)                 : 10.24744
            Ω (Longitude of ascending node) : 85.15088
            ω (Argument of perihelion)      : 336.59598
            M (Mean anomaly)                : 135.05378
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 62.08086
            B (Latitude of perihelion)      : -4.05212
            P (Orbital period in years)     : 4.47            
        

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
2025-12-20 00:00 UT   15 10 55.3   -11 14 58     3.950    3.258   40.0   11.2   293   14.7 
2025-12-20 08:14 UT   15 11 20.5   -11 16 40     3.947    3.259   40.2   11.2   293   14.7 
2025-12-21 00:00 UT   15 12 08.5   -11 19 54     3.942    3.259   40.7   11.3   293   14.7 
2025-12-22 00:00 UT   15 13 21.4   -11 24 46     3.933    3.260   41.4   11.5   293   14.7 
2025-12-23 00:00 UT   15 14 34.0   -11 29 34     3.924    3.262   42.1   11.7   292   14.7 
2025-12-24 00:00 UT   15 15 46.3   -11 34 18     3.915    3.263   42.8   11.8   292   14.7 
2025-12-25 00:00 UT   15 16 58.4   -11 38 58     3.906    3.264   43.5   12.0   292   14.7 
2025-12-26 00:00 UT   15 18 10.1   -11 43 35     3.897    3.265   44.2   12.1   292   14.7 
2025-12-27 00:00 UT   15 19 21.4   -11 48 08     3.888    3.266   44.9   12.3   291   14.7 
2025-12-28 00:00 UT   15 20 32.5   -11 52 36     3.878    3.267   45.6   12.4   291   14.7 
2025-12-29 00:00 UT   15 21 43.2   -11 57 01     3.869    3.268   46.3   12.6   291   14.7 
2025-12-30 00:00 UT   15 22 53.6   -12 01 22     3.859    3.269   47.0   12.7   291   14.7 
2025-12-31 00:00 UT   15 24 03.6   -12 05 40     3.849    3.270   47.7   12.9   290   14.7 
2026-01-01 00:00 UT   15 25 13.3   -12 09 53     3.839    3.271   48.5   13.0   290   14.7 
2026-01-02 00:00 UT   15 26 22.6   -12 14 03     3.829    3.272   49.2   13.1   290   14.7 
2026-01-03 00:00 UT   15 27 31.5   -12 18 08     3.819    3.273   49.9   13.3   290   14.7 
2026-01-04 00:00 UT   15 28 40.1   -12 22 10     3.808    3.274   50.6   13.4   289   14.7 
2026-01-05 00:00 UT   15 29 48.3   -12 26 08     3.798    3.275   51.3   13.6   289   14.7 
2026-01-06 00:00 UT   15 30 56.1   -12 30 02     3.787    3.276   52.1   13.7   289   14.7 
2026-01-07 00:00 UT   15 32 03.4   -12 33 53     3.776    3.277   52.8   13.8   289   14.7 
2026-01-08 00:00 UT   15 33 10.4   -12 37 39     3.765    3.278   53.5   14.0   289   14.7 
2026-01-09 00:00 UT   15 34 16.9   -12 41 21     3.754    3.279   54.3   14.1   288   14.7 
2026-01-10 00:00 UT   15 35 23.1   -12 44 60     3.743    3.280   55.0   14.2   288   14.7 
2026-01-11 00:00 UT   15 36 28.7   -12 48 35     3.732    3.281   55.7   14.3   288   14.7 
2026-01-12 00:00 UT   15 37 33.9   -12 52 05     3.720    3.281   56.5   14.5   288   14.7 
2026-01-13 00:00 UT   15 38 38.7   -12 55 32     3.709    3.282   57.2   14.6   288   14.7 
2026-01-14 00:00 UT   15 39 42.9   -12 58 55     3.697    3.283   58.0   14.7   287   14.7 
2026-01-15 00:00 UT   15 40 46.7   -13 02 14     3.686    3.284   58.7   14.8   287   14.7 
2026-01-16 00:00 UT   15 41 50.0   -13 05 29     3.674    3.285   59.5   14.9   287   14.7 
2026-01-17 00:00 UT   15 42 52.8   -13 08 40     3.662    3.286   60.2   15.1   287   14.6 
2026-01-18 00:00 UT   15 43 55.0   -13 11 48     3.650    3.287   61.0   15.2   287   14.6 

    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.