(81) Terpsichore
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	1 Mar 2026	14.3	3.352 AU	2.730 AU	14h20m	-18°02'	121.1°	14.7°
Opposition	21 Apr 2026	13.4	3.398 AU	2.397 AU	13h49m	-17°21'	174.3°	1.7°

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 Terpsichore are:

            e (Eccentricity)                : 0.2117711
            a (Semimajor axis)              : 2.8515286
            i (Inclination)                 : 7.80119
            Ω (Longitude of ascending node) : 0.89514
            ω (Argument of perihelion)      : 51.22360
            M (Mean anomaly)                : 118.66686
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 51.85837
            B (Latitude of perihelion)      : 6.07438
            P (Orbital period in years)     : 4.82            
        

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
2026-03-01 00:00 UT   14 20 39.1   -18 02 30     2.730    3.352  121.1   14.7   291   14.3 
2026-03-01 23:07 UT   14 20 31.0   -18 04 16     2.719    3.353  122.1   14.5   291   14.3 
2026-03-02 00:00 UT   14 20 30.7   -18 04 20     2.719    3.353  122.2   14.5   291   14.3 
2026-03-03 00:00 UT   14 20 20.9   -18 06 05     2.707    3.354  123.2   14.3   292   14.3 
2026-03-04 00:00 UT   14 20 09.8   -18 07 43     2.696    3.355  124.2   14.1   292   14.3 
2026-03-05 00:00 UT   14 19 57.4   -18 09 15     2.684    3.356  125.2   14.0   292   14.3 
2026-03-06 00:00 UT   14 19 43.7   -18 10 42     2.673    3.357  126.3   13.8   292   14.2 
2026-03-07 00:00 UT   14 19 28.8   -18 12 01     2.662    3.358  127.3   13.6   292   14.2 
2026-03-08 00:00 UT   14 19 12.5   -18 13 15     2.651    3.359  128.4   13.4   292   14.2 
2026-03-09 00:00 UT   14 18 54.9   -18 14 23     2.641    3.360  129.4   13.2   293   14.2 
2026-03-10 00:00 UT   14 18 36.0   -18 15 24     2.630    3.361  130.5   13.0   293   14.2 
2026-03-11 00:00 UT   14 18 15.8   -18 16 18     2.620    3.362  131.6   12.8   293   14.2 
2026-03-12 00:00 UT   14 17 54.3   -18 17 06     2.610    3.363  132.6   12.6   293   14.1 
2026-03-13 00:00 UT   14 17 31.6   -18 17 48     2.600    3.364  133.7   12.3   293   14.1 
2026-03-14 00:00 UT   14 17 07.6   -18 18 23     2.590    3.365  134.8   12.1   294   14.1 
2026-03-15 00:00 UT   14 16 42.3   -18 18 52     2.580    3.366  135.8   11.9   294   14.1 
2026-03-16 00:00 UT   14 16 15.8   -18 19 13     2.571    3.367  136.9   11.6   294   14.1 
2026-03-17 00:00 UT   14 15 48.1   -18 19 29     2.562    3.368  138.0   11.4   294   14.1 
2026-03-18 00:00 UT   14 15 19.1   -18 19 37     2.553    3.369  139.1   11.2   295   14.0 
2026-03-19 00:00 UT   14 14 49.0   -18 19 39     2.544    3.369  140.2   10.9   295   14.0 
2026-03-20 00:00 UT   14 14 17.6   -18 19 34     2.535    3.370  141.3   10.6   295   14.0 
2026-03-21 00:00 UT   14 13 45.1   -18 19 23     2.527    3.371  142.4   10.4   295   14.0 
2026-03-22 00:00 UT   14 13 11.5   -18 19 04     2.519    3.372  143.5   10.1   296   14.0 
2026-03-23 00:00 UT   14 12 36.8   -18 18 39     2.511    3.373  144.6    9.8   296   14.0 
2026-03-24 00:00 UT   14 12 01.0   -18 18 08     2.503    3.374  145.7    9.6   297   13.9 
2026-03-25 00:00 UT   14 11 24.1   -18 17 30     2.496    3.375  146.9    9.3   297   13.9 
2026-03-26 00:00 UT   14 10 46.2   -18 16 45     2.489    3.376  148.0    9.0   297   13.9 
2026-03-27 00:00 UT   14 10 07.3   -18 15 54     2.482    3.377  149.1    8.7   298   13.9 
2026-03-28 00:00 UT   14 09 27.5   -18 14 56     2.475    3.378  150.2    8.4   298   13.9 
2026-03-29 00:00 UT   14 08 46.7   -18 13 51     2.469    3.379  151.3    8.1   299   13.9 
2026-03-30 00:00 UT   14 08 05.0   -18 12 41     2.462    3.379  152.5    7.9   299   13.8 
2026-03-31 00:00 UT   14 07 22.4   -18 11 24     2.456    3.380  153.6    7.6   300   13.8 

    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.