(27) Euterpe
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	9 May 2025	12.3	2.682 AU	2.551 AU	21h38m	-14°50'	86.3°	22.1°
Opposition	13 Aug 2025	10.2	2.564 AU	1.551 AU	21h35m	-16°20'	178.1°	0.7°

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 Euterpe are:

            e (Eccentricity)                : 0.1715064
            a (Semimajor axis)              : 2.3475338
            i (Inclination)                 : 1.58333
            Ω (Longitude of ascending node) : 94.76731
            ω (Argument of perihelion)      : 356.51896
            M (Mean anomaly)                : 218.18562
            Epoch                           : 2025 May 05

            L (Longitude of perihelion)     : 91.28760
            B (Latitude of perihelion)      : -0.09612
            P (Orbital period in years)     : 3.60            
        

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
2025-05-09 00:00 UT   21 38 27.7   -14 50 35     2.551    2.682   86.3   22.1   251   12.3 
2025-05-09 10:25 UT   21 38 52.3   -14 48 48     2.545    2.682   86.6   22.1   251   12.3 
2025-05-10 00:00 UT   21 39 24.2   -14 46 29     2.537    2.681   87.0   22.1   251   12.3 
2025-05-11 00:00 UT   21 40 19.9   -14 42 26     2.523    2.680   87.7   22.1   251   12.3 
2025-05-12 00:00 UT   21 41 14.8   -14 38 27     2.509    2.679   88.5   22.1   251   12.2 
2025-05-13 00:00 UT   21 42 08.7   -14 34 31     2.494    2.678   89.2   22.2   251   12.2 
2025-05-14 00:00 UT   21 43 01.8   -14 30 40     2.480    2.677   89.9   22.2   251   12.2 
2025-05-15 00:00 UT   21 43 53.9   -14 26 53     2.466    2.676   90.7   22.2   251   12.2 
2025-05-16 00:00 UT   21 44 45.2   -14 23 10     2.452    2.675   91.4   22.2   251   12.2 
2025-05-17 00:00 UT   21 45 35.5   -14 19 31     2.437    2.674   92.2   22.2   251   12.2 
2025-05-18 00:00 UT   21 46 24.9   -14 15 57     2.423    2.673   92.9   22.2   251   12.2 
2025-05-19 00:00 UT   21 47 13.3   -14 12 27     2.409    2.672   93.7   22.2   251   12.2 
2025-05-20 00:00 UT   21 48 00.7   -14 09 02     2.395    2.671   94.5   22.2   251   12.1 
2025-05-21 00:00 UT   21 48 47.2   -14 05 42     2.381    2.670   95.2   22.2   251   12.1 
2025-05-22 00:00 UT   21 49 32.7   -14 02 27     2.366    2.669   96.0   22.2   251   12.1 
2025-05-23 00:00 UT   21 50 17.1   -13 59 17     2.352    2.668   96.8   22.1   250   12.1 
2025-05-24 00:00 UT   21 51 00.5   -13 56 12     2.338    2.667   97.6   22.1   250   12.1 
2025-05-25 00:00 UT   21 51 42.8   -13 53 12     2.324    2.666   98.3   22.1   250   12.1 
2025-05-26 00:00 UT   21 52 24.1   -13 50 18     2.310    2.665   99.1   22.0   250   12.1 
2025-05-27 00:00 UT   21 53 04.3   -13 47 30     2.296    2.664   99.9   22.0   250   12.0 
2025-05-28 00:00 UT   21 53 43.4   -13 44 47     2.282    2.663  100.7   22.0   250   12.0 
2025-05-29 00:00 UT   21 54 21.4   -13 42 10     2.268    2.662  101.5   21.9   250   12.0 
2025-05-30 00:00 UT   21 54 58.3   -13 39 39     2.254    2.661  102.3   21.8   250   12.0 
2025-05-31 00:00 UT   21 55 34.0   -13 37 14     2.240    2.660  103.1   21.8   250   12.0 
2025-06-01 00:00 UT   21 56 08.5   -13 34 56     2.226    2.659  103.9   21.7   250   12.0 
2025-06-02 00:00 UT   21 56 41.9   -13 32 43     2.212    2.658  104.8   21.7   250   11.9 
2025-06-03 00:00 UT   21 57 14.2   -13 30 37     2.198    2.657  105.6   21.6   250   11.9 
2025-06-04 00:00 UT   21 57 45.2   -13 28 38     2.184    2.656  106.4   21.5   250   11.9 
2025-06-05 00:00 UT   21 58 15.0   -13 26 45     2.171    2.654  107.2   21.4   250   11.9 
2025-06-06 00:00 UT   21 58 43.6   -13 24 59     2.157    2.653  108.1   21.3   250   11.9 
2025-06-07 00:00 UT   21 59 10.9   -13 23 19     2.143    2.652  108.9   21.2   250   11.9 
2025-06-08 00:00 UT   21 59 37.0   -13 21 47     2.130    2.651  109.8   21.1   250   11.8 

    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.