(185) Eunike
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	25 Apr 2024	12.5	3.015 AU	2.167 AU	16h11m	+11°54'	140.9°	12.1°
Opposition	13 May 2024	12.4	3.001 AU	2.107 AU	15h58m	+13°58'	146.3°	10.8°

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 Eunike are:

            e (Eccentricity)                : 0.1271480
            a (Semimajor axis)              : 2.7394039
            i (Inclination)                 : 23.24890
            Ω (Longitude of ascending node) : 153.75114
            ω (Argument of perihelion)      : 223.88075
            M (Mean anomaly)                : 216.63890
            Epoch                           : 2024 Mar 31

            L (Longitude of perihelion)     : 195.21449
            B (Latitude of perihelion)      : -15.87910
            P (Orbital period in years)     : 4.53            
        

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   16 11 26.5   +11 54 45     2.167    3.015  140.9   12.1   231   12.5 
2024-04-25 14:26 UT   16 11 05.9   +11 59 44     2.164    3.015  141.3   12.1   230   12.5 
2024-04-26 00:00 UT   16 10 52.1   +12 03 01     2.162    3.015  141.5   12.0   229   12.5 
2024-04-27 00:00 UT   16 10 16.5   +12 11 08     2.157    3.014  142.0   11.9   228   12.5 
2024-04-28 00:00 UT   16 09 40.0   +12 19 06     2.152    3.013  142.4   11.8   226   12.4 
2024-04-29 00:00 UT   16 09 02.4   +12 26 55     2.147    3.012  142.9   11.6   224   12.4 
2024-04-30 00:00 UT   16 08 23.9   +12 34 34     2.143    3.012  143.3   11.5   223   12.4 
2024-05-01 00:00 UT   16 07 44.4   +12 42 02     2.139    3.011  143.7   11.4   221   12.4 
2024-05-02 00:00 UT   16 07 04.0   +12 49 19     2.135    3.010  144.1   11.3   219   12.4 
2024-05-03 00:00 UT   16 06 22.7   +12 56 26     2.131    3.009  144.5   11.2   217   12.4 
2024-05-04 00:00 UT   16 05 40.6   +13 03 20     2.128    3.009  144.8   11.1   215   12.4 
2024-05-05 00:00 UT   16 04 57.7   +13 10 03     2.125    3.008  145.1   11.1   213   12.4 
2024-05-06 00:00 UT   16 04 14.0   +13 16 34     2.122    3.007  145.4   11.0   211   12.4 
2024-05-07 00:00 UT   16 03 29.6   +13 22 51     2.119    3.006  145.6   10.9   209   12.4 
2024-05-08 00:00 UT   16 02 44.6   +13 28 56     2.117    3.005  145.8   10.9   207   12.4 
2024-05-09 00:00 UT   16 01 58.9   +13 34 47     2.115    3.005  146.0   10.8   205   12.4 
2024-05-10 00:00 UT   16 01 12.7   +13 40 25     2.113    3.004  146.1   10.8   203   12.4 
2024-05-11 00:00 UT   16 00 25.9   +13 45 48     2.111    3.003  146.2   10.8   201   12.4 
2024-05-12 00:00 UT   15 59 38.7   +13 50 57     2.109    3.002  146.3   10.8   199   12.4 
2024-05-13 00:00 UT   15 58 51.0   +13 55 52     2.108    3.002  146.3   10.8   197   12.4 
2024-05-14 00:00 UT   15 58 02.9   +14 00 31     2.107    3.001  146.3   10.8   195   12.4 
2024-05-15 00:00 UT   15 57 14.6   +14 04 56     2.106    3.000  146.3   10.8   193   12.4 
2024-05-16 00:00 UT   15 56 25.9   +14 09 05     2.106    2.999  146.2   10.8   191   12.4 
2024-05-17 00:00 UT   15 55 37.0   +14 12 59     2.105    2.998  146.1   10.8   188   12.4 
2024-05-18 00:00 UT   15 54 48.0   +14 16 37     2.105    2.998  146.0   10.9   186   12.4 
2024-05-19 00:00 UT   15 53 58.8   +14 19 60     2.105    2.997  145.8   10.9   184   12.4 
2024-05-20 00:00 UT   15 53 09.5   +14 23 06     2.106    2.996  145.6   11.0   182   12.4 
2024-05-21 00:00 UT   15 52 20.2   +14 25 56     2.106    2.995  145.4   11.1   180   12.4 
2024-05-22 00:00 UT   15 51 30.9   +14 28 31     2.107    2.994  145.1   11.1   178   12.4 
2024-05-23 00:00 UT   15 50 41.7   +14 30 49     2.108    2.993  144.9   11.2   176   12.4 
2024-05-24 00:00 UT   15 49 52.5   +14 32 51     2.110    2.993  144.5   11.3   174   12.4 
2024-05-25 00:00 UT   15 49 03.6   +14 34 36     2.111    2.992  144.2   11.4   173   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.