(29) Amphitrite
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	17 Jun 2025	11.4	2.622 AU	2.853 AU	10h17m	+10°55'	66.6°	20.8°
Opposition	28 May 2026	9.7	2.739 AU	1.734 AU	16h15m	-30°32'	170.9°	3.4°

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 Amphitrite are:

            e (Eccentricity)                : 0.0734638
            a (Semimajor axis)              : 2.5539190
            i (Inclination)                 : 6.07775
            Ω (Longitude of ascending node) : 356.25570
            ω (Argument of perihelion)      : 61.88223
            M (Mean anomaly)                : 96.82761
            Epoch                           : 2025 May 05

            L (Longitude of perihelion)     : 58.00348
            B (Latitude of perihelion)      : 5.35822
            P (Orbital period in years)     : 4.08            
        

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
2025-06-17 00:00 UT   10 17 41.2   +10 55 28     2.853    2.622   66.6   20.8   111   11.4 
2025-06-17 06:42 UT   10 18 01.9   +10 53 05     2.857    2.622   66.4   20.8   111   11.4 
2025-06-18 00:00 UT   10 18 55.4   +10 46 57     2.866    2.622   66.0   20.7   111   11.4 
2025-06-19 00:00 UT   10 20 10.1   +10 38 23     2.878    2.623   65.4   20.6   111   11.4 
2025-06-20 00:00 UT   10 21 25.2   +10 29 46     2.891    2.624   64.8   20.5   111   11.4 
2025-06-21 00:00 UT   10 22 40.6   +10 21 05     2.903    2.624   64.1   20.4   111   11.4 
2025-06-22 00:00 UT   10 23 56.5   +10 12 22     2.915    2.625   63.5   20.3   111   11.4 
2025-06-23 00:00 UT   10 25 12.7   +10 03 37     2.928    2.626   62.9   20.2   111   11.4 
2025-06-24 00:00 UT   10 26 29.3   +09 54 48     2.940    2.627   62.3   20.0   111   11.4 
2025-06-25 00:00 UT   10 27 46.3   +09 45 56     2.952    2.627   61.7   19.9   111   11.4 
2025-06-26 00:00 UT   10 29 03.6   +09 37 01     2.964    2.628   61.1   19.8   111   11.4 
2025-06-27 00:00 UT   10 30 21.2   +09 28 04     2.976    2.629   60.5   19.7   112   11.4 
2025-06-28 00:00 UT   10 31 39.2   +09 19 04     2.988    2.629   59.9   19.5   112   11.4 
2025-06-29 00:00 UT   10 32 57.5   +09 10 01     3.000    2.630   59.3   19.4   112   11.4 
2025-06-30 00:00 UT   10 34 16.2   +09 00 56     3.011    2.631   58.7   19.3   112   11.4 
2025-07-01 00:00 UT   10 35 35.1   +08 51 47     3.023    2.631   58.1   19.1   112   11.4 
2025-07-02 00:00 UT   10 36 54.4   +08 42 37     3.035    2.632   57.5   19.0   112   11.5 
2025-07-03 00:00 UT   10 38 13.9   +08 33 23     3.046    2.633   56.9   18.9   112   11.5 
2025-07-04 00:00 UT   10 39 33.8   +08 24 07     3.058    2.634   56.3   18.7   112   11.5 
2025-07-05 00:00 UT   10 40 53.9   +08 14 49     3.069    2.634   55.7   18.6   112   11.5 
2025-07-06 00:00 UT   10 42 14.3   +08 05 28     3.080    2.635   55.2   18.5   112   11.5 
2025-07-07 00:00 UT   10 43 34.9   +07 56 05     3.091    2.636   54.6   18.3   112   11.5 
2025-07-08 00:00 UT   10 44 55.9   +07 46 39     3.103    2.636   54.0   18.2   112   11.5 
2025-07-09 00:00 UT   10 46 17.0   +07 37 11     3.114    2.637   53.4   18.0   112   11.5 
2025-07-10 00:00 UT   10 47 38.5   +07 27 41     3.125    2.638   52.8   17.9   112   11.5 

    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.