(33) Polyhymnia
ephemeris date magn radius delta ra dec elong phase
Today5 Nov 202514.63.358 AU3.339 AU09h31m+16°26'82.6°17.0°
Opposition3 Feb 202613.43.558 AU2.572 AU09h12m+18°18'177.8°0.6°
(33) Polyhymnia - 2025-11-05
astro.vanbuitenen.nl


 
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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
2025-11-05 00:00 UT   09 31 32.9   +16 26 44     3.339    3.358   82.6   17.0   289   14.6 
2025-11-05 15:55 UT   09 31 57.5   +16 24 60     3.331    3.359   83.1   17.0   289   14.6 
2025-11-06 00:00 UT   09 32 09.9   +16 24 07     3.327    3.360   83.4   17.0   289   14.6 
2025-11-07 00:00 UT   09 32 46.0   +16 21 35     3.314    3.363   84.2   17.1   289   14.6 
2025-11-08 00:00 UT   09 33 21.2   +16 19 06     3.302    3.365   85.1   17.1   289   14.6 
2025-11-09 00:00 UT   09 33 55.4   +16 16 42     3.289    3.368   86.0   17.1   289   14.6 
2025-11-10 00:00 UT   09 34 28.7   +16 14 23     3.276    3.370   86.8   17.1   289   14.6 
2025-11-11 00:00 UT   09 35 01.0   +16 12 08     3.264    3.373   87.7   17.1   289   14.6 
2025-11-12 00:00 UT   09 35 32.3   +16 09 57     3.251    3.375   88.6   17.1   289   14.6 
2025-11-13 00:00 UT   09 36 02.6   +16 07 52     3.239    3.377   89.5   17.0   289   14.6 
2025-11-14 00:00 UT   09 36 31.9   +16 05 51     3.226    3.380   90.3   17.0   289   14.6 
2025-11-15 00:00 UT   09 37 00.2   +16 03 55     3.213    3.382   91.2   17.0   289   14.6 
2025-11-16 00:00 UT   09 37 27.5   +16 02 04     3.201    3.385   92.1   17.0   289   14.5 
2025-11-17 00:00 UT   09 37 53.7   +16 00 19     3.188    3.387   93.0   16.9   289   14.5 
2025-11-18 00:00 UT   09 38 18.8   +15 58 38     3.175    3.390   93.9   16.9   289   14.5 
2025-11-19 00:00 UT   09 38 42.9   +15 57 03     3.163    3.392   94.8   16.9   289   14.5 
2025-11-20 00:00 UT   09 39 05.9   +15 55 33     3.150    3.394   95.7   16.8   289   14.5 
2025-11-21 00:00 UT   09 39 27.7   +15 54 08     3.137    3.397   96.7   16.8   289   14.5 
2025-11-22 00:00 UT   09 39 48.5   +15 52 49     3.125    3.399   97.6   16.7   289   14.5 
2025-11-23 00:00 UT   09 40 08.2   +15 51 35     3.112    3.402   98.5   16.7   289   14.5 
2025-11-24 00:00 UT   09 40 26.7   +15 50 27     3.099    3.404   99.5   16.6   289   14.5 
2025-11-25 00:00 UT   09 40 44.1   +15 49 25     3.087    3.406  100.4   16.6   289   14.5 
2025-11-26 00:00 UT   09 41 00.4   +15 48 28     3.074    3.409  101.3   16.5   289   14.5 
2025-11-27 00:00 UT   09 41 15.5   +15 47 38     3.062    3.411  102.3   16.4   289   14.4 
2025-11-28 00:00 UT   09 41 29.4   +15 46 52     3.050    3.413  103.2   16.3   289   14.4 
2025-11-29 00:00 UT   09 41 42.2   +15 46 13     3.037    3.416  104.2   16.3   289   14.4 
2025-11-30 00:00 UT   09 41 53.7   +15 45 40     3.025    3.418  105.2   16.2   289   14.4 
2025-12-01 00:00 UT   09 42 04.1   +15 45 12     3.013    3.420  106.1   16.1   289   14.4 
2025-12-02 00:00 UT   09 42 13.3   +15 44 51     3.000    3.423  107.1   16.0   289   14.4 
2025-12-03 00:00 UT   09 42 21.3   +15 44 36     2.988    3.425  108.1   15.9   289   14.4 
2025-12-04 00:00 UT   09 42 28.1   +15 44 26     2.976    3.427  109.1   15.8   289   14.4 
2025-12-05 00:00 UT   09 42 33.6   +15 44 23     2.964    3.430  110.1   15.7   288   14.4 


    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.