(194) Prokne
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	14 Nov 2025	13.1	2.964 AU	2.433 AU	07h40m	+01°09'	113.1°	17.9°
Opposition	8 Jan 2026	12.4	3.058 AU	2.120 AU	07h07m	+01°03'	158.7°	6.7°

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)                : 0.2371862
            a (Semimajor axis)              : 2.6182164
            i (Inclination)                 : 18.51167
            Ω (Longitude of ascending node) : 159.19113
            ω (Argument of perihelion)      : 163.47251
            M (Mean anomaly)                : 114.13733
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 143.47548
            B (Latitude of perihelion)      : 5.18203
            P (Orbital period in years)     : 4.24            
        

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
2025-11-14 00:00 UT   07 40 36.7   +01 09 05     2.433    2.964  113.1   17.9   289   13.1 
2025-11-14 14:35 UT   07 40 36.1   +01 06 35     2.427    2.965  113.6   17.8   290   13.1 
2025-11-15 00:00 UT   07 40 35.4   +01 04 59     2.422    2.966  114.0   17.7   290   13.0 
2025-11-16 00:00 UT   07 40 32.6   +01 00 59     2.412    2.967  114.9   17.6   290   13.0 
2025-11-17 00:00 UT   07 40 28.4   +00 57 05     2.402    2.969  115.8   17.4   291   13.0 
2025-11-18 00:00 UT   07 40 22.7   +00 53 17     2.392    2.971  116.8   17.3   291   13.0 
2025-11-19 00:00 UT   07 40 15.6   +00 49 35     2.382    2.973  117.7   17.1   292   13.0 
2025-11-20 00:00 UT   07 40 07.0   +00 45 59     2.372    2.975  118.6   17.0   292   13.0 
2025-11-21 00:00 UT   07 39 56.9   +00 42 30     2.362    2.977  119.6   16.8   293   13.0 
2025-11-22 00:00 UT   07 39 45.4   +00 39 08     2.353    2.978  120.5   16.6   293   13.0 
2025-11-23 00:00 UT   07 39 32.4   +00 35 53     2.343    2.980  121.5   16.4   294   12.9 
2025-11-24 00:00 UT   07 39 18.0   +00 32 46     2.334    2.982  122.4   16.2   294   12.9 
2025-11-25 00:00 UT   07 39 02.1   +00 29 46     2.324    2.984  123.4   16.0   295   12.9 
2025-11-26 00:00 UT   07 38 44.7   +00 26 53     2.315    2.985  124.3   15.8   295   12.9 
2025-11-27 00:00 UT   07 38 26.0   +00 24 09     2.306    2.987  125.3   15.6   296   12.9 
2025-11-28 00:00 UT   07 38 05.8   +00 21 32     2.298    2.989  126.3   15.4   296   12.9 
2025-11-29 00:00 UT   07 37 44.2   +00 19 04     2.289    2.991  127.2   15.2   297   12.9 
2025-11-30 00:00 UT   07 37 21.1   +00 16 44     2.280    2.993  128.2   15.0   298   12.8 
2025-12-01 00:00 UT   07 36 56.7   +00 14 33     2.272    2.994  129.2   14.8   298   12.8 
2025-12-02 00:00 UT   07 36 30.9   +00 12 31     2.264    2.996  130.2   14.6   299   12.8 
2025-12-03 00:00 UT   07 36 03.8   +00 10 38     2.256    2.998  131.1   14.3   300   12.8 
2025-12-04 00:00 UT   07 35 35.2   +00 08 54     2.248    3.000  132.1   14.1   300   12.8 
2025-12-05 00:00 UT   07 35 05.4   +00 07 20     2.241    3.001  133.1   13.9   301   12.8 
2025-12-06 00:00 UT   07 34 34.2   +00 05 55     2.233    3.003  134.1   13.6   302   12.8 
2025-12-07 00:00 UT   07 34 01.7   +00 04 40     2.226    3.005  135.0   13.4   303   12.7 
2025-12-08 00:00 UT   07 33 27.9   +00 03 34     2.219    3.006  136.0   13.2   304   12.7 
2025-12-09 00:00 UT   07 32 52.8   +00 02 39     2.212    3.008  137.0   12.9   305   12.7 
2025-12-10 00:00 UT   07 32 16.5   +00 01 54     2.205    3.010  138.0   12.7   305   12.7 
2025-12-11 00:00 UT   07 31 39.0   +00 01 20     2.199    3.012  138.9   12.4   306   12.7 
2025-12-12 00:00 UT   07 31 00.2   +00 00 56     2.193    3.013  139.9   12.2   307   12.7 
2025-12-13 00:00 UT   07 30 20.3   +00 00 42     2.187    3.015  140.8   11.9   308   12.7 
2025-12-14 00:00 UT   07 29 39.3   +00 00 40     2.181    3.017  141.8   11.6   310   12.6 

    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.