(31) Euphrosyne
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	22 Mar 2026	13.5	3.836 AU	3.829 AU	18h44m	-44°22'	82.9°	14.9°
Opposition	25 Jun 2026	12.7	3.842 AU	2.941 AU	18h26m	-55°13'	148.1°	8.0°

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 Euphrosyne are:

            e (Eccentricity)                : 0.2159207
            a (Semimajor axis)              : 3.1615053
            i (Inclination)                 : 26.31223
            Ω (Longitude of ascending node) : 30.79589
            ω (Argument of perihelion)      : 61.97075
            M (Mean anomaly)                : 147.89313
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 90.08994
            B (Latitude of perihelion)      : 23.03363
            P (Orbital period in years)     : 5.62            
        

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
2026-03-22 00:00 UT   18 44 55.6   -44 22 22     3.829    3.836   82.9   14.9   262   13.5 
2026-03-22 17:13 UT   18 45 33.1   -44 26 43     3.819    3.836   83.5   15.0   263   13.5 
2026-03-23 00:00 UT   18 45 47.8   -44 28 26     3.815    3.836   83.7   15.0   263   13.5 
2026-03-24 00:00 UT   18 46 39.2   -44 34 33     3.801    3.836   84.5   15.0   263   13.5 
2026-03-25 00:00 UT   18 47 29.6   -44 40 44     3.787    3.837   85.3   15.0   263   13.5 
2026-03-26 00:00 UT   18 48 19.0   -44 46 57     3.774    3.837   86.1   15.0   263   13.5 
2026-03-27 00:00 UT   18 49 07.5   -44 53 14     3.760    3.837   86.9   15.0   264   13.5 
2026-03-28 00:00 UT   18 49 55.1   -44 59 34     3.746    3.837   87.7   15.1   264   13.5 
2026-03-29 00:00 UT   18 50 41.7   -45 05 57     3.733    3.838   88.5   15.1   264   13.4 
2026-03-30 00:00 UT   18 51 27.2   -45 12 24     3.719    3.838   89.2   15.1   264   13.4 
2026-03-31 00:00 UT   18 52 11.8   -45 18 54     3.705    3.838   90.0   15.1   264   13.4 
2026-04-01 00:00 UT   18 52 55.3   -45 25 28     3.691    3.838   90.8   15.1   265   13.4 
2026-04-02 00:00 UT   18 53 37.8   -45 32 05     3.678    3.838   91.6   15.1   265   13.4 
2026-04-03 00:00 UT   18 54 19.2   -45 38 45     3.664    3.839   92.4   15.1   265   13.4 
2026-04-04 00:00 UT   18 54 59.6   -45 45 29     3.650    3.839   93.2   15.1   265   13.4 
2026-04-05 00:00 UT   18 55 38.8   -45 52 16     3.637    3.839   94.0   15.1   266   13.4 
2026-04-06 00:00 UT   18 56 17.0   -45 59 07     3.623    3.839   94.8   15.1   266   13.4 
2026-04-07 00:00 UT   18 56 54.0   -46 06 01     3.610    3.840   95.6   15.0   266   13.4 
2026-04-08 00:00 UT   18 57 29.8   -46 12 58     3.596    3.840   96.4   15.0   267   13.4 
2026-04-09 00:00 UT   18 58 04.5   -46 19 59     3.583    3.840   97.3   15.0   267   13.4 
2026-04-10 00:00 UT   18 58 38.0   -46 27 04     3.569    3.840   98.1   15.0   267   13.3 
2026-04-11 00:00 UT   18 59 10.2   -46 34 12     3.556    3.840   98.9   14.9   268   13.3 
2026-04-12 00:00 UT   18 59 41.3   -46 41 23     3.543    3.840   99.7   14.9   268   13.3 
2026-04-13 00:00 UT   19 00 11.0   -46 48 38     3.529    3.841  100.5   14.9   268   13.3 
2026-04-14 00:00 UT   19 00 39.5   -46 55 56     3.516    3.841  101.3   14.8   269   13.3 
2026-04-15 00:00 UT   19 01 06.8   -47 03 18     3.503    3.841  102.1   14.8   269   13.3 
2026-04-16 00:00 UT   19 01 32.7   -47 10 43     3.490    3.841  102.9   14.7   269   13.3 
2026-04-17 00:00 UT   19 01 57.2   -47 18 11     3.477    3.841  103.8   14.7   270   13.3 
2026-04-18 00:00 UT   19 02 20.4   -47 25 42     3.464    3.841  104.6   14.7   270   13.3 
2026-04-19 00:00 UT   19 02 42.3   -47 33 16     3.451    3.842  105.4   14.6   271   13.3 
2026-04-20 00:00 UT   19 03 02.7   -47 40 53     3.438    3.842  106.2   14.5   271   13.3 
2026-04-21 00:00 UT   19 03 21.8   -47 48 33     3.425    3.842  107.0   14.5   271   13.2 

    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.