(308) Polyxo
ephemeris date magn radius delta ra dec elong phase
Today25 Apr 202412.82.665 AU2.014 AU18h19m-17°48'120.1°19.1°
Opposition19 Jun 202411.72.653 AU1.642 AU17h53m-16°22'173.0°2.7°
(308) Polyxo - 2024-04-25
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 Polyxo are:

            e (Eccentricity)                : 0.0388193
            a (Semimajor axis)              : 2.7500601
            i (Inclination)                 : 4.36255
            Ω (Longitude of ascending node) : 181.58887
            ω (Argument of perihelion)      : 112.27393
            M (Mean anomaly)                : 319.04492
            Epoch                           : 2024 Mar 31

            L (Longitude of perihelion)     : 113.92117
            B (Latitude of perihelion)      : 4.03646
            P (Orbital period in years)     : 4.56            
        

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. A more printer-friendly version of the same chart can be found below.




Ephemerides:
Date       Time       RA (2000)    DEC (2000)    delta   radius  elong  phase   PA    magn
2024-04-25 00:00 UT   18 19 26.4   -17 48 30     2.014    2.665  120.1   19.1   265   12.8 
2024-04-25 04:34 UT   18 19 28.7   -17 48 03     2.011    2.665  120.3   19.0   265   12.8 
2024-04-26 00:00 UT   18 19 38.2   -17 46 07     2.002    2.664  121.1   18.9   265   12.8 
2024-04-27 00:00 UT   18 19 48.5   -17 43 46     1.991    2.664  122.0   18.7   264   12.8 
2024-04-28 00:00 UT   18 19 57.1   -17 41 25     1.979    2.664  122.9   18.5   264   12.8 
2024-04-29 00:00 UT   18 20 04.2   -17 39 05     1.968    2.664  123.8   18.3   264   12.8 
2024-04-30 00:00 UT   18 20 09.7   -17 36 45     1.957    2.663  124.8   18.1   264   12.7 
2024-05-01 00:00 UT   18 20 13.5   -17 34 27     1.946    2.663  125.7   17.9   264   12.7 
2024-05-02 00:00 UT   18 20 15.8   -17 32 09     1.935    2.663  126.7   17.7   264   12.7 
2024-05-03 00:00 UT   18 20 16.4   -17 29 53     1.925    2.663  127.6   17.4   263   12.7 
2024-05-04 00:00 UT   18 20 15.3   -17 27 38     1.914    2.662  128.6   17.2   263   12.7 
2024-05-05 00:00 UT   18 20 12.7   -17 25 24     1.904    2.662  129.6   17.0   263   12.6 
2024-05-06 00:00 UT   18 20 08.3   -17 23 11     1.894    2.662  130.5   16.7   263   12.6 
2024-05-07 00:00 UT   18 20 02.4   -17 20 60     1.884    2.662  131.5   16.5   263   12.6 
2024-05-08 00:00 UT   18 19 54.8   -17 18 50     1.874    2.662  132.5   16.2   262   12.6 
2024-05-09 00:00 UT   18 19 45.5   -17 16 42     1.864    2.661  133.5   16.0   262   12.6 
2024-05-10 00:00 UT   18 19 34.6   -17 14 35     1.854    2.661  134.5   15.7   262   12.5 
2024-05-11 00:00 UT   18 19 22.1   -17 12 30     1.845    2.661  135.5   15.4   262   12.5 
2024-05-12 00:00 UT   18 19 08.0   -17 10 27     1.836    2.661  136.5   15.2   262   12.5 
2024-05-13 00:00 UT   18 18 52.3   -17 08 26     1.826    2.660  137.5   14.9   261   12.5 
2024-05-14 00:00 UT   18 18 35.0   -17 06 27     1.818    2.660  138.5   14.6   261   12.5 
2024-05-15 00:00 UT   18 18 16.1   -17 04 30     1.809    2.660  139.5   14.3   261   12.4 
2024-05-16 00:00 UT   18 17 55.6   -17 02 34     1.800    2.660  140.6   14.0   260   12.4 
2024-05-17 00:00 UT   18 17 33.6   -17 00 41     1.792    2.660  141.6   13.7   260   12.4 
2024-05-18 00:00 UT   18 17 10.0   -16 58 50     1.784    2.659  142.6   13.4   260   12.4 
2024-05-19 00:00 UT   18 16 44.9   -16 57 02     1.776    2.659  143.7   13.0   260   12.3 
2024-05-20 00:00 UT   18 16 18.4   -16 55 15     1.768    2.659  144.7   12.7   259   12.3 
2024-05-21 00:00 UT   18 15 50.3   -16 53 31     1.760    2.659  145.7   12.4   259   12.3 
2024-05-22 00:00 UT   18 15 20.8   -16 51 49     1.753    2.658  146.8   12.0   258   12.3 
2024-05-23 00:00 UT   18 14 49.9   -16 50 10     1.746    2.658  147.9   11.7   258   12.3 
2024-05-24 00:00 UT   18 14 17.5   -16 48 33     1.739    2.658  148.9   11.3   258   12.2 
2024-05-25 00:00 UT   18 13 43.8   -16 46 59     1.732    2.658  150.0   11.0   257   12.2 


    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.