(33) Polyhymnia
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	17 May 2026	15.1	3.719 AU	3.833 AU	08h57m	+18°25'	75.9°	15.3°
Opposition	21 Mar 2027	13.6	3.780 AU	2.784 AU	12h03m	+00°02'	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)                : 0.3332669
            a (Semimajor axis)              : 2.8741505
            i (Inclination)                 : 1.85203
            Ω (Longitude of ascending node) : 8.21189
            ω (Argument of perihelion)      : 338.82787
            M (Mean anomaly)                : 107.06975
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : -12.95016
            B (Latitude of perihelion)      : -0.66880
            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
2026-05-17 00:00 UT   08 57 53.3   +18 25 27     3.833    3.719   75.9   15.3   106   15.1 
2026-05-17 13:00 UT   08 58 15.5   +18 23 40     3.842    3.720   75.5   15.3   106   15.1 
2026-05-18 00:00 UT   08 58 34.5   +18 22 09     3.849    3.720   75.1   15.2   106   15.1 
2026-05-19 00:00 UT   08 59 16.3   +18 18 49     3.865    3.721   74.3   15.2   106   15.1 
2026-05-20 00:00 UT   08 59 58.7   +18 15 26     3.880    3.723   73.5   15.1   106   15.1 
2026-05-21 00:00 UT   09 00 41.8   +18 11 60     3.896    3.724   72.8   15.0   106   15.1 
2026-05-22 00:00 UT   09 01 25.4   +18 08 31     3.912    3.725   72.0   15.0   106   15.1 
2026-05-23 00:00 UT   09 02 09.6   +18 04 59     3.927    3.726   71.2   14.9   106   15.1 
2026-05-24 00:00 UT   09 02 54.4   +18 01 24     3.942    3.727   70.4   14.8   106   15.1 
2026-05-25 00:00 UT   09 03 39.8   +17 57 46     3.958    3.729   69.7   14.8   106   15.1 
2026-05-26 00:00 UT   09 04 25.6   +17 54 06     3.973    3.730   68.9   14.7   106   15.1 
2026-05-27 00:00 UT   09 05 12.1   +17 50 23     3.988    3.731   68.1   14.6   106   15.2 
2026-05-28 00:00 UT   09 05 59.0   +17 46 37     4.003    3.732   67.4   14.5   106   15.2 
2026-05-29 00:00 UT   09 06 46.5   +17 42 48     4.018    3.733   66.6   14.4   106   15.2 
2026-05-30 00:00 UT   09 07 34.4   +17 38 57     4.033    3.734   65.8   14.3   106   15.2 
2026-05-31 00:00 UT   09 08 22.8   +17 35 02     4.048    3.735   65.1   14.2   106   15.2 
2026-06-01 00:00 UT   09 09 11.8   +17 31 06     4.062    3.737   64.3   14.2   106   15.2 
2026-06-02 00:00 UT   09 10 01.1   +17 27 06     4.077    3.738   63.6   14.1   107   15.2 
2026-06-03 00:00 UT   09 10 51.0   +17 23 04     4.091    3.739   62.8   14.0   107   15.2 
2026-06-04 00:00 UT   09 11 41.3   +17 18 59     4.106    3.740   62.1   13.9   107   15.2 
2026-06-05 00:00 UT   09 12 32.1   +17 14 52     4.120    3.741   61.3   13.8   107   15.2 
2026-06-06 00:00 UT   09 13 23.2   +17 10 41     4.134    3.742   60.6   13.7   107   15.2 
2026-06-07 00:00 UT   09 14 14.9   +17 06 29     4.148    3.743   59.9   13.6   107   15.2 
2026-06-08 00:00 UT   09 15 06.9   +17 02 13     4.162    3.744   59.1   13.5   107   15.2 
2026-06-09 00:00 UT   09 15 59.3   +16 57 55     4.176    3.745   58.4   13.3   107   15.2 
2026-06-10 00:00 UT   09 16 52.2   +16 53 35     4.190    3.747   57.7   13.2   107   15.2 
2026-06-11 00:00 UT   09 17 45.4   +16 49 12     4.204    3.748   56.9   13.1   107   15.2 
2026-06-12 00:00 UT   09 18 39.1   +16 44 46     4.217    3.749   56.2   13.0   107   15.2 
2026-06-13 00:00 UT   09 19 33.1   +16 40 18     4.231    3.750   55.5   12.9   107   15.2 
2026-06-14 00:00 UT   09 20 27.5   +16 35 48     4.244    3.751   54.7   12.8   107   15.2 
2026-06-15 00:00 UT   09 21 22.2   +16 31 15     4.257    3.752   54.0   12.7   107   15.2 
2026-06-16 00:00 UT   09 22 17.3   +16 26 39     4.271    3.753   53.3   12.5   107   15.2 

    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.