(31) Euphrosyne
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	8 Nov 2026	13.6	3.783 AU	4.242 AU	18h43m	-46°09'	56.3°	12.6°
Opposition	27 Aug 2027	12.0	3.403 AU	2.501 AU	23h18m	-39°02'	148.5°	8.9°

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 Euphrosyne are:

            e (Eccentricity)                : 0.2157958
            a (Semimajor axis)              : 3.1618987
            i (Inclination)                 : 26.30908
            Ω (Longitude of ascending node) : 30.78658
            ω (Argument of perihelion)      : 62.00908
            M (Mean anomaly)                : 182.91458
            Epoch                           : 2026 Jun 09

            L (Longitude of perihelion)     : 90.12189
            B (Latitude of perihelion)      : 23.03959
            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
2026-11-08 00:00 UT   18 43 23.8   -46 09 36     4.242    3.783   56.3   12.6   102   13.6 
2026-11-08 01:58 UT   18 43 30.6   -46 09 13     4.243    3.783   56.2   12.6   102   13.6 
2026-11-09 00:00 UT   18 44 46.9   -46 05 04     4.252    3.782   55.6   12.5   102   13.6 
2026-11-10 00:00 UT   18 46 10.6   -46 00 32     4.262    3.782   55.0   12.4   102   13.6 
2026-11-11 00:00 UT   18 47 34.7   -45 55 59     4.272    3.781   54.3   12.3   103   13.6 
2026-11-12 00:00 UT   18 48 59.3   -45 51 27     4.282    3.780   53.7   12.2   103   13.6 
2026-11-13 00:00 UT   18 50 24.4   -45 46 55     4.292    3.779   53.0   12.1   103   13.6 
2026-11-14 00:00 UT   18 51 49.9   -45 42 22     4.301    3.779   52.3   12.0   103   13.6 
2026-11-15 00:00 UT   18 53 15.9   -45 37 50     4.311    3.778   51.7   11.9   104   13.6 
2026-11-16 00:00 UT   18 54 42.2   -45 33 17     4.320    3.777   51.0   11.7   104   13.6 
2026-11-17 00:00 UT   18 56 09.0   -45 28 44     4.329    3.776   50.4   11.6   104   13.6 
2026-11-18 00:00 UT   18 57 36.2   -45 24 10     4.338    3.776   49.7   11.5   104   13.6 
2026-11-19 00:00 UT   18 59 03.8   -45 19 37     4.347    3.775   49.1   11.4   105   13.6 
2026-11-20 00:00 UT   19 00 31.7   -45 15 03     4.356    3.774   48.5   11.3   105   13.6 
2026-11-21 00:00 UT   19 02 00.0   -45 10 28     4.365    3.773   47.8   11.2   105   13.6 
2026-11-22 00:00 UT   19 03 28.7   -45 05 53     4.374    3.773   47.2   11.1   106   13.6 
2026-11-23 00:00 UT   19 04 57.7   -45 01 18     4.382    3.772   46.6   11.0   106   13.6 
2026-11-24 00:00 UT   19 06 27.0   -44 56 42     4.390    3.771   45.9   10.8   106   13.6 
2026-11-25 00:00 UT   19 07 56.7   -44 52 06     4.399    3.770   45.3   10.7   107   13.6 
2026-11-26 00:00 UT   19 09 26.7   -44 47 29     4.407    3.769   44.7   10.6   107   13.6 
2026-11-27 00:00 UT   19 10 57.0   -44 42 51     4.415    3.769   44.1   10.5   107   13.6 
2026-11-28 00:00 UT   19 12 27.6   -44 38 13     4.423    3.768   43.5   10.4   108   13.6 
2026-11-29 00:00 UT   19 13 58.5   -44 33 35     4.430    3.767   42.8   10.3   108   13.6 
2026-11-30 00:00 UT   19 15 29.7   -44 28 55     4.438    3.766   42.2   10.1   108   13.6 
2026-12-01 00:00 UT   19 17 01.2   -44 24 15     4.445    3.765   41.6   10.0   109   13.6 
2026-12-02 00:00 UT   19 18 32.9   -44 19 34     4.452    3.765   41.0    9.9   109   13.6 
2026-12-03 00:00 UT   19 20 04.9   -44 14 53     4.460    3.764   40.4    9.8   110   13.6 
2026-12-04 00:00 UT   19 21 37.1   -44 10 11     4.467    3.763   39.8    9.7   110   13.6 
2026-12-05 00:00 UT   19 23 09.6   -44 05 28     4.474    3.762   39.2    9.5   111   13.5 
2026-12-06 00:00 UT   19 24 42.4   -44 00 44     4.480    3.761   38.6    9.4   111   13.5 
2026-12-07 00:00 UT   19 26 15.3   -43 55 60     4.487    3.760   38.1    9.3   112   13.5 
2026-12-08 00:00 UT   19 27 48.5   -43 51 14     4.493    3.760   37.5    9.2   112   13.5 

    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.