(27) Euterpe
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	8 Aug 2025	10.3	2.572 AU	1.563 AU	21h40m	-15°50'	172.9°	2.8°
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) : 94.76734
            ω (Argument of perihelion)      : 356.51892
            M (Mean anomaly)                : 218.18562
            Epoch                           : 2025 May 05

            L (Longitude of perihelion)     : 91.28759
            B (Latitude of perihelion)      : -0.09613
            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
2025-08-08 00:00 UT   21 40 44.0   -15 50 47     1.563    2.572  172.9    2.8   266   10.3 
2025-08-08 08:47 UT   21 40 23.0   -15 52 44     1.562    2.572  173.3    2.6   267   10.3 
2025-08-09 00:00 UT   21 39 46.6   -15 56 08     1.560    2.571  174.1    2.3   269   10.3 
2025-08-10 00:00 UT   21 38 48.6   -16 01 30     1.558    2.569  175.2    1.9   274   10.3 
2025-08-11 00:00 UT   21 37 50.3   -16 06 52     1.556    2.568  176.3    1.5   281   10.2 
2025-08-12 00:00 UT   21 36 51.6   -16 12 12     1.554    2.566  177.3    1.1   294   10.2 
2025-08-13 00:00 UT   21 35 52.5   -16 17 33     1.552    2.565  178.0    0.8   318   10.2 
2025-08-14 00:00 UT   21 34 53.3   -16 22 51     1.551    2.563  178.1    0.8   354   10.2 
2025-08-15 00:00 UT   21 33 53.8   -16 28 08     1.550    2.562  177.5    1.0    22   10.2 
2025-08-16 00:00 UT   21 32 54.3   -16 33 23     1.549    2.560  176.6    1.4    38   10.2 
2025-08-17 00:00 UT   21 31 54.7   -16 38 36     1.548    2.559  175.5    1.8    46   10.2 
2025-08-18 00:00 UT   21 30 55.2   -16 43 46     1.548    2.557  174.4    2.2    52   10.3 
2025-08-19 00:00 UT   21 29 55.8   -16 48 53     1.548    2.556  173.2    2.7    55   10.3 
2025-08-20 00:00 UT   21 28 56.6   -16 53 56     1.548    2.554  172.1    3.1    58   10.3 
2025-08-21 00:00 UT   21 27 57.6   -16 58 55     1.549    2.553  170.9    3.6    60   10.4 
2025-08-22 00:00 UT   21 26 59.0   -17 03 50     1.550    2.551  169.7    4.1    61   10.4 
2025-08-23 00:00 UT   21 26 00.8   -17 08 41     1.551    2.550  168.5    4.5    62   10.4 
2025-08-24 00:00 UT   21 25 03.1   -17 13 27     1.552    2.548  167.3    5.0    63   10.4 
2025-08-25 00:00 UT   21 24 05.9   -17 18 08     1.554    2.547  166.1    5.5    64   10.5 
2025-08-26 00:00 UT   21 23 09.4   -17 22 43     1.556    2.545  164.9    5.9    65   10.5 
2025-08-27 00:00 UT   21 22 13.6   -17 27 13     1.558    2.544  163.7    6.4    65   10.5 
2025-08-28 00:00 UT   21 21 18.6   -17 31 36     1.560    2.542  162.5    6.8    66   10.5 
2025-08-29 00:00 UT   21 20 24.4   -17 35 53     1.563    2.541  161.4    7.3    66   10.6 
2025-08-30 00:00 UT   21 19 31.0   -17 40 04     1.566    2.539  160.2    7.8    67   10.6 
2025-08-31 00:00 UT   21 18 38.7   -17 44 08     1.569    2.537  159.0    8.2    67   10.6 
2025-09-01 00:00 UT   21 17 47.4   -17 48 05     1.573    2.536  157.8    8.6    68   10.6 
2025-09-02 00:00 UT   21 16 57.1   -17 51 55     1.576    2.534  156.6    9.1    68   10.6 
2025-09-03 00:00 UT   21 16 08.0   -17 55 38     1.580    2.533  155.5    9.5    68   10.7 
2025-09-04 00:00 UT   21 15 20.0   -17 59 14     1.584    2.531  154.3    9.9    68   10.7 
2025-09-05 00:00 UT   21 14 33.3   -18 02 42     1.589    2.530  153.2   10.4    69   10.7 
2025-09-06 00:00 UT   21 13 47.8   -18 06 02     1.593    2.528  152.0   10.8    69   10.7 
2025-09-07 00:00 UT   21 13 03.7   -18 09 15     1.598    2.526  150.8   11.2    69   10.8 

    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.