(194) Prokne
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Opposition	8 Jan 2026	12.4	3.058 AU	2.120 AU	07h07m	+01°03'	158.7°	6.7°
Today	16 Jan 2026	12.4	3.069 AU	2.137 AU	07h01m	+01°44'	157.3°	7.1°

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
2026-01-16 00:00 UT   07 01 08.3   +01 44 09     2.137    3.069  157.3    7.1    31   12.4 
2026-01-16 13:17 UT   07 00 39.2   +01 47 28     2.139    3.070  157.1    7.2    32   12.5 
2026-01-17 00:00 UT   07 00 15.8   +01 50 11     2.141    3.070  156.9    7.2    34   12.5 
2026-01-18 00:00 UT   06 59 23.8   +01 56 20     2.145    3.072  156.4    7.4    37   12.5 
2026-01-19 00:00 UT   06 58 32.5   +02 02 38     2.149    3.073  155.8    7.5    39   12.5 
2026-01-20 00:00 UT   06 57 41.9   +02 09 03     2.153    3.075  155.3    7.7    42   12.5 
2026-01-21 00:00 UT   06 56 52.0   +02 15 35     2.158    3.076  154.6    7.9    44   12.5 
2026-01-22 00:00 UT   06 56 02.9   +02 22 14     2.163    3.078  153.9    8.1    47   12.5 
2026-01-23 00:00 UT   06 55 14.6   +02 28 59     2.168    3.079  153.2    8.3    49   12.5 
2026-01-24 00:00 UT   06 54 27.2   +02 35 51     2.174    3.080  152.5    8.5    51   12.6 
2026-01-25 00:00 UT   06 53 40.7   +02 42 48     2.179    3.082  151.7    8.7    53   12.6 
2026-01-26 00:00 UT   06 52 55.2   +02 49 51     2.185    3.083  150.9    8.9    55   12.6 
2026-01-27 00:00 UT   06 52 10.7   +02 56 60     2.192    3.085  150.1    9.2    57   12.6 
2026-01-28 00:00 UT   06 51 27.2   +03 04 13     2.198    3.086  149.3    9.4    58   12.6 
2026-01-29 00:00 UT   06 50 44.7   +03 11 31     2.205    3.088  148.4    9.6    60   12.6 
2026-01-30 00:00 UT   06 50 03.4   +03 18 53     2.212    3.089  147.5    9.9    61   12.7 
2026-01-31 00:00 UT   06 49 23.1   +03 26 19     2.220    3.090  146.6   10.1    63   12.7 
2026-02-01 00:00 UT   06 48 44.1   +03 33 49     2.227    3.092  145.7   10.3    64   12.7 
2026-02-02 00:00 UT   06 48 06.2   +03 41 23     2.235    3.093  144.8   10.6    65   12.7 
2026-02-03 00:00 UT   06 47 29.5   +03 48 59     2.243    3.094  143.9   10.8    67   12.7 
2026-02-04 00:00 UT   06 46 54.0   +03 56 38     2.252    3.096  143.0   11.1    68   12.7 
2026-02-05 00:00 UT   06 46 19.8   +04 04 20     2.260    3.097  142.0   11.3    69   12.8 
2026-02-06 00:00 UT   06 45 46.8   +04 12 04     2.269    3.099  141.1   11.5    70   12.8 
2026-02-07 00:00 UT   06 45 15.2   +04 19 51     2.278    3.100  140.1   11.8    71   12.8 
2026-02-08 00:00 UT   06 44 44.8   +04 27 39     2.287    3.101  139.1   12.0    72   12.8 
2026-02-09 00:00 UT   06 44 15.8   +04 35 28     2.297    3.103  138.2   12.2    73   12.8 
2026-02-10 00:00 UT   06 43 48.1   +04 43 19     2.306    3.104  137.2   12.5    74   12.9 
2026-02-11 00:00 UT   06 43 21.8   +04 51 11     2.316    3.105  136.2   12.7    74   12.9 
2026-02-12 00:00 UT   06 42 56.9   +04 59 04     2.327    3.107  135.3   12.9    75   12.9 
2026-02-13 00:00 UT   06 42 33.3   +05 06 57     2.337    3.108  134.3   13.1    76   12.9 
2026-02-14 00:00 UT   06 42 11.2   +05 14 50     2.347    3.109  133.3   13.4    77   12.9 
2026-02-15 00:00 UT   06 41 50.4   +05 22 43     2.358    3.110  132.4   13.6    77   12.9 

    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.