(33) Polyhymnia
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	15 Aug 2026	15.1	3.803 AU	4.788 AU	10h23m	+10°49'	12.0°	3.2°
Opposition	21 Mar 2027	13.6	3.779 AU	2.783 AU	12h02m	+00°03'	179.5°	0.1°

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 Polyhymnia are:

            e (Eccentricity)                : 0.3344915
            a (Semimajor axis)              : 2.8713350
            i (Inclination)                 : 1.85420
            Ω (Longitude of ascending node) : 8.12700
            ω (Argument of perihelion)      : 338.81363
            M (Mean anomaly)                : 147.60944
            Epoch                           : 2026 Jun 09

            L (Longitude of perihelion)     : -13.04926
            B (Latitude of perihelion)      : -0.67001
            P (Orbital period in years)     : 4.87            
        

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
2026-08-15 00:00 UT   10 23 52.1   +10 49 54     4.788    3.803   12.0    3.2   108   15.1 
2026-08-15 16:01 UT   10 24 35.4   +10 45 38     4.790    3.803   11.5    3.0   108   15.1 
2026-08-16 00:00 UT   10 24 57.0   +10 43 30     4.791    3.803   11.3    3.0   108   15.1 
2026-08-17 00:00 UT   10 26 01.9   +10 37 05     4.795    3.804   10.6    2.8   107   15.1 
2026-08-18 00:00 UT   10 27 06.8   +10 30 39     4.798    3.805    9.9    2.6   107   15.0 
2026-08-19 00:00 UT   10 28 11.7   +10 24 12     4.801    3.805    9.3    2.5   107   15.0 
2026-08-20 00:00 UT   10 29 16.6   +10 17 44     4.803    3.806    8.6    2.3   107   15.0 
2026-08-21 00:00 UT   10 30 21.5   +10 11 15     4.806    3.806    7.9    2.1   106   15.0 
2026-08-22 00:00 UT   10 31 26.4   +10 04 45     4.808    3.807    7.3    1.9   106   15.0 
2026-08-23 00:00 UT   10 32 31.3   +09 58 15     4.810    3.807    6.6    1.7   105   15.0 
2026-08-24 00:00 UT   10 33 36.2   +09 51 43     4.812    3.808    5.9    1.6   105   15.0 
2026-08-25 00:00 UT   10 34 41.1   +09 45 11     4.814    3.809    5.2    1.4   104   15.0 
2026-08-26 00:00 UT   10 35 45.9   +09 38 39     4.816    3.809    4.6    1.2   103   15.0 
2026-08-27 00:00 UT   10 36 50.8   +09 32 05     4.817    3.810    3.9    1.0   101   14.9 
2026-08-28 00:00 UT   10 37 55.6   +09 25 31     4.818    3.810    3.2    0.9    99   14.9 
2026-08-29 00:00 UT   10 39 00.4   +09 18 56     4.819    3.811    2.6    0.7    96   14.9 
2026-08-30 00:00 UT   10 40 05.1   +09 12 21     4.820    3.811    1.9    0.5    90   14.9 
2026-08-31 00:00 UT   10 41 09.8   +09 05 45     4.821    3.812    1.3    0.4    79   14.9 
2026-09-01 00:00 UT   10 42 14.5   +08 59 08     4.821    3.812    0.8    0.2    54   14.8 
2026-09-02 00:00 UT   10 43 19.2   +08 52 31     4.822    3.813    0.8    0.2     4   14.8 
2026-09-03 00:00 UT   10 44 23.8   +08 45 53     4.822    3.813    1.2    0.3   330   14.9 
2026-09-04 00:00 UT   10 45 28.3   +08 39 15     4.822    3.814    1.7    0.5   316   14.9 
2026-09-05 00:00 UT   10 46 32.9   +08 32 36     4.822    3.814    2.4    0.6   310   14.9 
2026-09-06 00:00 UT   10 47 37.3   +08 25 57     4.821    3.815    3.0    0.8   306   14.9 
2026-09-07 00:00 UT   10 48 41.8   +08 19 18     4.821    3.815    3.7    1.0   303   14.9 
2026-09-08 00:00 UT   10 49 46.1   +08 12 38     4.820    3.816    4.4    1.2   302   15.0 
2026-09-09 00:00 UT   10 50 50.4   +08 05 58     4.819    3.816    5.1    1.3   300   15.0 
2026-09-10 00:00 UT   10 51 54.6   +07 59 17     4.817    3.817    5.7    1.5   299   15.0 
2026-09-11 00:00 UT   10 52 58.8   +07 52 36     4.816    3.817    6.4    1.7   299   15.0 
2026-09-12 00:00 UT   10 54 02.9   +07 45 55     4.814    3.818    7.1    1.9   298   15.0 
2026-09-13 00:00 UT   10 55 06.9   +07 39 14     4.813    3.818    7.8    2.0   298   15.0 

    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.