(31) Euphrosyne
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	18 Apr 2024	11.9	2.781 AU	2.245 AU	10h19m	+37°34'	112.0°	19.6°
Opposition	4 May 2025	11.9	3.534 AU	2.535 AU	14h35m	-24°53'	170.8°	2.6°

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 Euphrosyne are:

            e (Eccentricity)                : 0.2159567
            a (Semimajor axis)              : 3.1595526
            i (Inclination)                 : 26.32078
            Ω (Longitude of ascending node) : 30.79894
            ω (Argument of perihelion)      : 61.80841
            M (Mean anomaly)                : 42.82667
            Epoch                           : 2024 Mar 31

            L (Longitude of perihelion)     : 89.91935
            B (Latitude of perihelion)      : 23.00413
            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. 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
2024-04-18 00:00 UT   10 19 51.0   +37 34 27     2.245    2.781  112.0   19.6   124   11.9 
2024-04-18 08:23 UT   10 19 50.4   +37 29 38     2.249    2.781  111.7   19.6   124   11.9 
2024-04-19 00:00 UT   10 19 49.6   +37 20 40     2.257    2.783  111.2   19.7   124   11.9 
2024-04-20 00:00 UT   10 19 49.9   +37 06 48     2.269    2.785  110.5   19.8   123   11.9 
2024-04-21 00:00 UT   10 19 51.7   +36 52 53     2.282    2.787  109.7   19.8   123   11.9 
2024-04-22 00:00 UT   10 19 55.2   +36 38 55     2.295    2.789  109.0   19.9   122   11.9 
2024-04-23 00:00 UT   10 20 00.3   +36 24 53     2.307    2.791  108.2   20.0   122   11.9 
2024-04-24 00:00 UT   10 20 07.0   +36 10 48     2.320    2.793  107.5   20.1   121   12.0 
2024-04-25 00:00 UT   10 20 15.2   +35 56 40     2.333    2.795  106.8   20.2   121   12.0 
2024-04-26 00:00 UT   10 20 24.8   +35 42 29     2.346    2.797  106.0   20.2   120   12.0 
2024-04-27 00:00 UT   10 20 36.0   +35 28 16     2.359    2.799  105.3   20.3   120   12.0 
2024-04-28 00:00 UT   10 20 48.6   +35 14 01     2.372    2.801  104.6   20.4   119   12.0 
2024-04-29 00:00 UT   10 21 02.7   +34 59 44     2.386    2.803  103.8   20.4   119   12.0 
2024-04-30 00:00 UT   10 21 18.1   +34 45 25     2.399    2.805  103.1   20.5   119   12.0 
2024-05-01 00:00 UT   10 21 34.9   +34 31 04     2.412    2.807  102.4   20.5   118   12.1 
2024-05-02 00:00 UT   10 21 53.1   +34 16 41     2.426    2.809  101.7   20.6   118   12.1 
2024-05-03 00:00 UT   10 22 12.6   +34 02 17     2.439    2.811  100.9   20.6   118   12.1 
2024-05-04 00:00 UT   10 22 33.4   +33 47 52     2.453    2.813  100.2   20.7   117   12.1 
2024-05-05 00:00 UT   10 22 55.5   +33 33 26     2.467    2.815   99.5   20.7   117   12.1 
2024-05-06 00:00 UT   10 23 18.9   +33 18 59     2.480    2.817   98.8   20.7   116   12.1 
2024-05-07 00:00 UT   10 23 43.5   +33 04 30     2.494    2.819   98.1   20.8   116   12.1 
2024-05-08 00:00 UT   10 24 09.3   +32 50 01     2.508    2.821   97.3   20.8   116   12.2 
2024-05-09 00:00 UT   10 24 36.3   +32 35 32     2.522    2.823   96.6   20.8   115   12.2 
2024-05-10 00:00 UT   10 25 04.4   +32 21 02     2.536    2.825   95.9   20.8   115   12.2 
2024-05-11 00:00 UT   10 25 33.7   +32 06 31     2.550    2.827   95.2   20.8   115   12.2 
2024-05-12 00:00 UT   10 26 04.2   +31 52 01     2.564    2.829   94.5   20.9   115   12.2 
2024-05-13 00:00 UT   10 26 35.7   +31 37 30     2.578    2.831   93.8   20.9   114   12.2 
2024-05-14 00:00 UT   10 27 08.2   +31 22 59     2.592    2.833   93.1   20.9   114   12.2 
2024-05-15 00:00 UT   10 27 41.8   +31 08 28     2.607    2.835   92.4   20.9   114   12.3 
2024-05-16 00:00 UT   10 28 16.4   +30 53 57     2.621    2.837   91.7   20.9   114   12.3 
2024-05-17 00:00 UT   10 28 52.1   +30 39 27     2.635    2.839   91.0   20.9   113   12.3 
2024-05-18 00:00 UT   10 29 28.6   +30 24 56     2.649    2.841   90.3   20.9   113   12.3 

    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.