(33) Polyhymnia
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	6 Dec 2025	14.4	3.432 AU	2.952 AU	09h42m	+15°44'	111.1°	15.5°
Opposition	3 Feb 2026	13.4	3.558 AU	2.572 AU	09h12m	+18°18'	177.8°	0.6°

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)      : 338.82786
            M (Mean anomaly)                : 107.06975
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : -12.95017
            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
2025-12-06 00:00 UT   09 42 38.0   +15 44 26     2.952    3.432  111.1   15.5   288   14.4 
2025-12-06 18:22 UT   09 42 40.4   +15 44 32     2.943    3.434  111.8   15.4   288   14.3 
2025-12-07 00:00 UT   09 42 41.0   +15 44 34     2.941    3.434  112.1   15.4   288   14.3 
2025-12-08 00:00 UT   09 42 42.9   +15 44 50     2.929    3.437  113.1   15.3   288   14.3 
2025-12-09 00:00 UT   09 42 43.5   +15 45 11     2.917    3.439  114.1   15.2   288   14.3 
2025-12-10 00:00 UT   09 42 42.8   +15 45 38     2.906    3.441  115.1   15.0   288   14.3 
2025-12-11 00:00 UT   09 42 40.8   +15 46 12     2.894    3.444  116.1   14.9   288   14.3 
2025-12-12 00:00 UT   09 42 37.6   +15 46 52     2.883    3.446  117.2   14.7   288   14.3 
2025-12-13 00:00 UT   09 42 33.1   +15 47 39     2.872    3.448  118.2   14.6   288   14.3 
2025-12-14 00:00 UT   09 42 27.3   +15 48 31     2.861    3.450  119.3   14.4   288   14.3 
2025-12-15 00:00 UT   09 42 20.2   +15 49 30     2.850    3.453  120.3   14.3   288   14.2 
2025-12-16 00:00 UT   09 42 11.8   +15 50 35     2.839    3.455  121.4   14.1   288   14.2 
2025-12-17 00:00 UT   09 42 02.1   +15 51 47     2.828    3.457  122.4   13.9   288   14.2 
2025-12-18 00:00 UT   09 41 51.2   +15 53 04     2.818    3.459  123.5   13.7   288   14.2 
2025-12-19 00:00 UT   09 41 38.9   +15 54 28     2.807    3.461  124.6   13.5   288   14.2 
2025-12-20 00:00 UT   09 41 25.3   +15 55 58     2.797    3.464  125.6   13.3   288   14.2 
2025-12-21 00:00 UT   09 41 10.4   +15 57 34     2.787    3.466  126.7   13.2   288   14.2 
2025-12-22 00:00 UT   09 40 54.3   +15 59 16     2.777    3.468  127.8   13.0   288   14.1 
2025-12-23 00:00 UT   09 40 36.8   +16 01 04     2.767    3.470  128.9   12.7   287   14.1 
2025-12-24 00:00 UT   09 40 18.1   +16 02 58     2.758    3.472  130.0   12.5   287   14.1 
2025-12-25 00:00 UT   09 39 58.1   +16 04 58     2.748    3.475  131.1   12.3   287   14.1 
2025-12-26 00:00 UT   09 39 36.8   +16 07 03     2.739    3.477  132.2   12.1   287   14.1 
2025-12-27 00:00 UT   09 39 14.3   +16 09 15     2.730    3.479  133.3   11.9   287   14.1 
2025-12-28 00:00 UT   09 38 50.5   +16 11 31     2.721    3.481  134.4   11.6   287   14.1 
2025-12-29 00:00 UT   09 38 25.5   +16 13 53     2.712    3.483  135.6   11.4   287   14.0 
2025-12-30 00:00 UT   09 37 59.2   +16 16 21     2.704    3.485  136.7   11.2   287   14.0 
2025-12-31 00:00 UT   09 37 31.8   +16 18 53     2.696    3.488  137.8   10.9   287   14.0 
2026-01-01 00:00 UT   09 37 03.1   +16 21 31     2.688    3.490  139.0   10.7   287   14.0 
2026-01-02 00:00 UT   09 36 33.3   +16 24 13     2.680    3.492  140.1   10.4   286   14.0 
2026-01-03 00:00 UT   09 36 02.3   +16 27 00     2.672    3.494  141.3   10.1   286   14.0 
2026-01-04 00:00 UT   09 35 30.2   +16 29 52     2.665    3.496  142.4    9.9   286   14.0 
2026-01-05 00:00 UT   09 34 56.9   +16 32 49     2.658    3.498  143.6    9.6   286   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.