(194) Prokne
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	17 Mar 2026	13.4	3.146 AU	2.749 AU	06h42m	+09°03'	104.3°	17.8°
Opposition	12 Mar 2027	12.2	3.115 AU	2.125 AU	11h37m	+08°51'	174.1°	1.9°

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) : 159.19114
            ω (Argument of perihelion)      : 163.47251
            M (Mean anomaly)                : 114.13733
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 143.47549
            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
2026-03-17 00:00 UT   06 42 21.1   +09 03 37     2.749    3.146  104.3   17.8    91   13.4 
2026-03-17 11:00 UT   06 42 30.8   +09 06 35     2.756    3.147  103.9   17.9    91   13.5 
2026-03-18 00:00 UT   06 42 42.6   +09 10 04     2.764    3.148  103.4   17.9    91   13.5 
2026-03-19 00:00 UT   06 43 05.3   +09 16 27     2.779    3.149  102.5   18.0    91   13.5 
2026-03-20 00:00 UT   06 43 29.2   +09 22 46     2.793    3.150  101.7   18.0    92   13.5 
2026-03-21 00:00 UT   06 43 54.3   +09 28 60     2.808    3.151  100.8   18.1    92   13.5 
2026-03-22 00:00 UT   06 44 20.5   +09 35 09     2.823    3.152   99.9   18.1    92   13.5 
2026-03-23 00:00 UT   06 44 47.9   +09 41 13     2.838    3.153   99.1   18.2    92   13.5 
2026-03-24 00:00 UT   06 45 16.5   +09 47 13     2.853    3.154   98.2   18.2    93   13.5 
2026-03-25 00:00 UT   06 45 46.1   +09 53 07     2.868    3.155   97.4   18.3    93   13.6 
2026-03-26 00:00 UT   06 46 16.8   +09 58 57     2.883    3.156   96.5   18.3    93   13.6 
2026-03-27 00:00 UT   06 46 48.6   +10 04 42     2.898    3.157   95.7   18.3    93   13.6 
2026-03-28 00:00 UT   06 47 21.5   +10 10 22     2.913    3.158   94.9   18.4    94   13.6 
2026-03-29 00:00 UT   06 47 55.4   +10 15 56     2.928    3.159   94.0   18.4    94   13.6 
2026-03-30 00:00 UT   06 48 30.4   +10 21 26     2.943    3.160   93.2   18.4    94   13.6 
2026-03-31 00:00 UT   06 49 06.3   +10 26 51     2.958    3.161   92.4   18.4    94   13.6 
2026-04-01 00:00 UT   06 49 43.3   +10 32 10     2.973    3.162   91.6   18.4    95   13.6 
2026-04-02 00:00 UT   06 50 21.2   +10 37 24     2.988    3.163   90.7   18.4    95   13.7 
2026-04-03 00:00 UT   06 51 00.1   +10 42 34     3.003    3.164   89.9   18.4    95   13.7 
2026-04-04 00:00 UT   06 51 39.9   +10 47 38     3.018    3.165   89.1   18.4    95   13.7 
2026-04-05 00:00 UT   06 52 20.7   +10 52 37     3.034    3.166   88.3   18.4    96   13.7 
2026-04-06 00:00 UT   06 53 02.4   +10 57 31     3.049    3.167   87.5   18.4    96   13.7 
2026-04-07 00:00 UT   06 53 45.0   +11 02 19     3.064    3.168   86.7   18.4    96   13.7 
2026-04-08 00:00 UT   06 54 28.5   +11 07 03     3.079    3.169   85.9   18.4    96   13.7 
2026-04-09 00:00 UT   06 55 12.9   +11 11 41     3.094    3.170   85.1   18.3    97   13.7 
2026-04-10 00:00 UT   06 55 58.2   +11 16 14     3.109    3.171   84.3   18.3    97   13.7 
2026-04-11 00:00 UT   06 56 44.3   +11 20 41     3.124    3.172   83.6   18.3    97   13.8 
2026-04-12 00:00 UT   06 57 31.2   +11 25 04     3.139    3.173   82.8   18.3    97   13.8 
2026-04-13 00:00 UT   06 58 19.0   +11 29 21     3.154    3.174   82.0   18.2    97   13.8 
2026-04-14 00:00 UT   06 59 07.6   +11 33 32     3.169    3.175   81.2   18.2    98   13.8 
2026-04-15 00:00 UT   06 59 57.0   +11 37 39     3.184    3.176   80.5   18.2    98   13.8 
2026-04-16 00:00 UT   07 00 47.2   +11 41 40     3.199    3.177   79.7   18.1    98   13.8 

    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.