(556) Phyllis
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	28 Mar 2026	14.2	2.610 AU	2.048 AU	16h45m	-27°43'	113.4°	20.5°
Opposition	27 May 2026	13.0	2.658 AU	1.648 AU	16h14m	-26°44'	174.5°	2.1°

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 Phyllis are:

            e (Eccentricity)                : 0.1038903
            a (Semimajor axis)              : 2.4639024
            i (Inclination)                 : 5.24942
            Ω (Longitude of ascending node) : 285.97117
            ω (Argument of perihelion)      : 177.16344
            M (Mean anomaly)                : 87.62954
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 283.14649
            B (Latitude of perihelion)      : 0.25942
            P (Orbital period in years)     : 3.87            
        

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
2026-03-28 00:00 UT   16 45 17.6   -27 43 54     2.048    2.610  113.4   20.5   280   14.2 
2026-03-28 08:18 UT   16 45 24.3   -27 44 25     2.044    2.611  113.7   20.5   280   14.2 
2026-03-29 00:00 UT   16 45 36.4   -27 45 24     2.037    2.611  114.3   20.4   280   14.2 
2026-03-30 00:00 UT   16 45 53.4   -27 46 50     2.025    2.612  115.2   20.2   280   14.1 
2026-03-31 00:00 UT   16 46 08.7   -27 48 13     2.014    2.613  116.1   20.1   280   14.1 
2026-04-01 00:00 UT   16 46 22.3   -27 49 33     2.003    2.614  117.1   19.9   280   14.1 
2026-04-02 00:00 UT   16 46 34.2   -27 50 48     1.992    2.615  118.0   19.7   280   14.1 
2026-04-03 00:00 UT   16 46 44.3   -27 51 60     1.981    2.616  118.9   19.5   280   14.1 
2026-04-04 00:00 UT   16 46 52.6   -27 53 08     1.970    2.616  119.9   19.4   280   14.0 
2026-04-05 00:00 UT   16 46 59.1   -27 54 12     1.960    2.617  120.8   19.2   280   14.0 
2026-04-06 00:00 UT   16 47 03.9   -27 55 13     1.949    2.618  121.8   19.0   281   14.0 
2026-04-07 00:00 UT   16 47 06.8   -27 56 09     1.938    2.619  122.8   18.7   281   14.0 
2026-04-08 00:00 UT   16 47 07.8   -27 57 01     1.928    2.620  123.7   18.5   281   14.0 
2026-04-09 00:00 UT   16 47 07.1   -27 57 49     1.918    2.621  124.7   18.3   281   14.0 
2026-04-10 00:00 UT   16 47 04.5   -27 58 33     1.908    2.621  125.7   18.1   281   13.9 
2026-04-11 00:00 UT   16 46 60.0   -27 59 13     1.898    2.622  126.7   17.8   281   13.9 
2026-04-12 00:00 UT   16 46 53.7   -27 59 48     1.888    2.623  127.7   17.6   282   13.9 
2026-04-13 00:00 UT   16 46 45.5   -28 00 19     1.878    2.624  128.7   17.4   282   13.9 
2026-04-14 00:00 UT   16 46 35.4   -28 00 45     1.868    2.625  129.7   17.1   282   13.9 
2026-04-15 00:00 UT   16 46 23.5   -28 01 06     1.859    2.626  130.7   16.8   282   13.8 
2026-04-16 00:00 UT   16 46 09.7   -28 01 23     1.850    2.626  131.7   16.6   282   13.8 
2026-04-17 00:00 UT   16 45 54.0   -28 01 34     1.841    2.627  132.7   16.3   283   13.8 
2026-04-18 00:00 UT   16 45 36.5   -28 01 41     1.832    2.628  133.8   16.0   283   13.8 
2026-04-19 00:00 UT   16 45 17.1   -28 01 43     1.823    2.629  134.8   15.7   283   13.8 
2026-04-20 00:00 UT   16 44 55.9   -28 01 39     1.814    2.630  135.9   15.4   283   13.8 
2026-04-21 00:00 UT   16 44 32.8   -28 01 30     1.806    2.631  136.9   15.1   284   13.7 
2026-04-22 00:00 UT   16 44 08.0   -28 01 16     1.797    2.631  138.0   14.8   284   13.7 
2026-04-23 00:00 UT   16 43 41.3   -28 00 56     1.789    2.632  139.0   14.5   284   13.7 
2026-04-24 00:00 UT   16 43 12.9   -28 00 30     1.781    2.633  140.1   14.2   284   13.7 
2026-04-25 00:00 UT   16 42 42.8   -27 59 59     1.774    2.634  141.2   13.9   285   13.7 
2026-04-26 00:00 UT   16 42 10.9   -27 59 22     1.766    2.635  142.2   13.5   285   13.6 
2026-04-27 00:00 UT   16 41 37.4   -27 58 39     1.759    2.635  143.3   13.2   285   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.