(194) Prokne
ephemeris date magn radius delta ra dec elong phase
Today29 Mar 202412.52.097 AU2.378 AU20h26m-04°58'61.7°24.8°
Opposition2 Sep 20249.52.015 AU1.006 AU22h49m-08°17'179.1°0.5°
(194) Prokne - 2024-03-29
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 Prokne are:

            e (Eccentricity)                : 0.2372438
            a (Semimajor axis)              : 2.6163645
            i (Inclination)                 : 18.50854
            Ω (Longitude of ascending node) : 159.25168
            ω (Argument of perihelion)      : 163.19000
            M (Mean anomaly)                : 334.65838
            Epoch                           : 2024 Mar 31

            L (Longitude of perihelion)     : 143.26562
            B (Latitude of perihelion)      : 5.26746
            P (Orbital period in years)     : 4.23            
        

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
2024-03-29 00:00 UT   20 26 23.8   -04 58 17     2.378    2.097   61.7   24.8   263   12.5 
2024-03-29 09:35 UT   20 27 10.0   -04 55 25     2.374    2.097   61.9   24.8   263   12.5 
2024-03-30 00:00 UT   20 28 19.5   -04 51 05     2.367    2.096   62.1   24.9   263   12.5 
2024-03-31 00:00 UT   20 30 14.9   -04 43 50     2.357    2.094   62.6   25.1   263   12.5 
2024-04-01 00:00 UT   20 32 10.0   -04 36 32     2.346    2.092   63.1   25.2   263   12.5 
2024-04-02 00:00 UT   20 34 04.7   -04 29 11     2.335    2.091   63.5   25.3   262   12.5 
2024-04-03 00:00 UT   20 35 59.1   -04 21 49     2.324    2.089   64.0   25.5   262   12.5 
2024-04-04 00:00 UT   20 37 53.0   -04 14 24     2.314    2.087   64.4   25.6   262   12.5 
2024-04-05 00:00 UT   20 39 46.6   -04 06 56     2.303    2.086   64.9   25.7   261   12.5 
2024-04-06 00:00 UT   20 41 39.9   -03 59 27     2.292    2.084   65.4   25.9   261   12.5 
2024-04-07 00:00 UT   20 43 32.7   -03 51 56     2.281    2.082   65.8   26.0   261   12.4 
2024-04-08 00:00 UT   20 45 25.2   -03 44 22     2.270    2.081   66.3   26.1   260   12.4 
2024-04-09 00:00 UT   20 47 17.2   -03 36 48     2.259    2.079   66.8   26.3   260   12.4 
2024-04-10 00:00 UT   20 49 08.8   -03 29 12     2.248    2.078   67.2   26.4   260   12.4 
2024-04-11 00:00 UT   20 51 00.1   -03 21 34     2.237    2.076   67.7   26.5   260   12.4 
2024-04-12 00:00 UT   20 52 50.9   -03 13 55     2.226    2.074   68.2   26.7   259   12.4 
2024-04-13 00:00 UT   20 54 41.3   -03 06 15     2.215    2.073   68.7   26.8   259   12.4 
2024-04-14 00:00 UT   20 56 31.3   -02 58 35     2.204    2.071   69.1   26.9   259   12.4 
2024-04-15 00:00 UT   20 58 20.8   -02 50 53     2.193    2.070   69.6   27.0   259   12.4 


    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.