(79) Eurynome
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	9 Oct 2025	13.1	2.713 AU	3.690 AU	12h17m	-03°27'	10.3°	3.8°
Opposition	30 Apr 2026	11.6	2.904 AU	1.897 AU	14h33m	-13°17'	178.3°	0.6°

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 Eurynome are:

            e (Eccentricity)                : 0.1910250
            a (Semimajor axis)              : 2.4439453
            i (Inclination)                 : 4.61316
            Ω (Longitude of ascending node) : 206.50117
            ω (Argument of perihelion)      : 201.39127
            M (Mean anomaly)                : 127.32905
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 227.82938
            B (Latitude of perihelion)      : -1.68100
            P (Orbital period in years)     : 3.82            
        

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
2025-10-09 00:00 UT   12 17 37.1   -03 27 37     3.690    2.713   10.3    3.8   285   13.1 
2025-10-09 23:23 UT   12 19 06.3   -03 36 37     3.689    2.714   10.8    4.0   286   13.1 
2025-10-10 00:00 UT   12 19 08.7   -03 36 51     3.689    2.714   10.9    4.0   286   13.1 
2025-10-11 00:00 UT   12 20 40.2   -03 46 05     3.687    2.716   11.4    4.2   286   13.2 
2025-10-12 00:00 UT   12 22 11.6   -03 55 17     3.686    2.718   12.0    4.4   287   13.2 
2025-10-13 00:00 UT   12 23 43.0   -04 04 28     3.684    2.719   12.6    4.6   287   13.2 
2025-10-14 00:00 UT   12 25 14.2   -04 13 38     3.682    2.721   13.2    4.8   287   13.2 
2025-10-15 00:00 UT   12 26 45.3   -04 22 47     3.681    2.722   13.7    5.0   288   13.2 
2025-10-16 00:00 UT   12 28 16.4   -04 31 55     3.678    2.724   14.3    5.2   288   13.2 
2025-10-17 00:00 UT   12 29 47.3   -04 41 01     3.676    2.725   14.9    5.4   288   13.2 
2025-10-18 00:00 UT   12 31 18.1   -04 50 06     3.674    2.727   15.5    5.6   288   13.2 
2025-10-19 00:00 UT   12 32 48.8   -04 59 10     3.671    2.728   16.1    5.8   289   13.2 
2025-10-20 00:00 UT   12 34 19.4   -05 08 12     3.669    2.730   16.6    6.0   289   13.3 
2025-10-21 00:00 UT   12 35 49.9   -05 17 13     3.666    2.731   17.2    6.2   289   13.3 
2025-10-22 00:00 UT   12 37 20.3   -05 26 13     3.663    2.733   17.8    6.4   289   13.3 
2025-10-23 00:00 UT   12 38 50.6   -05 35 11     3.660    2.734   18.4    6.6   289   13.3 
2025-10-24 00:00 UT   12 40 20.7   -05 44 07     3.657    2.736   19.0    6.8   289   13.3 
2025-10-25 00:00 UT   12 41 50.7   -05 53 01     3.653    2.737   19.6    7.0   289   13.3 
2025-10-26 00:00 UT   12 43 20.6   -06 01 54     3.650    2.738   20.2    7.2   290   13.3 
2025-10-27 00:00 UT   12 44 50.4   -06 10 45     3.646    2.740   20.8    7.4   290   13.3 
2025-10-28 00:00 UT   12 46 20.0   -06 19 34     3.643    2.741   21.4    7.6   290   13.3 
2025-10-29 00:00 UT   12 47 49.5   -06 28 21     3.639    2.743   22.0    7.8   290   13.3 

    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.