(29) Amphitrite
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	19 Apr 2025	10.7	2.577 AU	2.068 AU	09h24m	+17°32'	109.0°	21.6°
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
2025-04-19 00:00 UT   09 24 11.4   +17 32 46     2.068    2.577  109.0   21.6   109   10.7 
2025-04-19 20:34 UT   09 24 33.3   +17 28 45     2.079    2.578  108.3   21.7   109   10.7 
2025-04-20 00:00 UT   09 24 37.1   +17 28 05     2.081    2.578  108.2   21.7   109   10.7 
2025-04-21 00:00 UT   09 25 04.2   +17 23 18     2.094    2.579  107.3   21.8   109   10.7 
2025-04-22 00:00 UT   09 25 32.6   +17 18 27     2.107    2.580  106.5   21.9   109   10.7 
2025-04-23 00:00 UT   09 26 02.3   +17 13 31     2.120    2.580  105.7   22.0   109   10.7 
2025-04-24 00:00 UT   09 26 33.3   +17 08 29     2.133    2.581  104.8   22.1   109   10.7 
2025-04-25 00:00 UT   09 27 05.7   +17 03 24     2.147    2.582  104.0   22.2   109   10.8 
2025-04-26 00:00 UT   09 27 39.2   +16 58 13     2.160    2.583  103.2   22.3   109   10.8 
2025-04-27 00:00 UT   09 28 14.1   +16 52 57     2.173    2.583  102.4   22.4   109   10.8 
2025-04-28 00:00 UT   09 28 50.1   +16 47 37     2.187    2.584  101.6   22.4   109   10.8 
2025-04-29 00:00 UT   09 29 27.4   +16 42 12     2.200    2.585  100.8   22.5   109   10.8 
2025-04-30 00:00 UT   09 30 05.8   +16 36 43     2.213    2.586  100.0   22.6   109   10.8 
2025-05-01 00:00 UT   09 30 45.4   +16 31 09     2.227    2.587   99.2   22.6   109   10.9 
2025-05-02 00:00 UT   09 31 26.2   +16 25 30     2.240    2.587   98.4   22.7   109   10.9 
2025-05-03 00:00 UT   09 32 08.0   +16 19 47     2.254    2.588   97.6   22.7   109   10.9 
2025-05-04 00:00 UT   09 32 50.9   +16 13 59     2.267    2.589   96.8   22.7   109   10.9 
2025-05-05 00:00 UT   09 33 34.9   +16 08 08     2.281    2.590   96.1   22.8   109   10.9 
2025-05-06 00:00 UT   09 34 20.0   +16 02 12     2.294    2.590   95.3   22.8   109   10.9 
2025-05-07 00:00 UT   09 35 06.1   +15 56 11     2.308    2.591   94.5   22.8   109   10.9 
2025-05-08 00:00 UT   09 35 53.1   +15 50 07     2.322    2.592   93.8   22.9   109   11.0 
2025-05-09 00:00 UT   09 36 41.2   +15 43 58     2.335    2.593   93.0   22.9   109   11.0 
2025-05-10 00:00 UT   09 37 30.2   +15 37 45     2.349    2.593   92.3   22.9   109   11.0 
2025-05-11 00:00 UT   09 38 20.1   +15 31 28     2.362    2.594   91.5   22.9   109   11.0 
2025-05-12 00:00 UT   09 39 11.0   +15 25 07     2.376    2.595   90.8   22.9   109   11.0 
2025-05-13 00:00 UT   09 40 02.8   +15 18 42     2.390    2.596   90.1   22.9   109   11.0 
2025-05-14 00:00 UT   09 40 55.4   +15 12 13     2.403    2.596   89.3   22.9   109   11.0 
2025-05-15 00:00 UT   09 41 48.9   +15 05 40     2.417    2.597   88.6   22.9   109   11.0 
2025-05-16 00:00 UT   09 42 43.3   +14 59 03     2.430    2.598   87.9   22.9   109   11.1 
2025-05-17 00:00 UT   09 43 38.5   +14 52 22     2.444    2.599   87.2   22.9   109   11.1 
2025-05-18 00:00 UT   09 44 34.5   +14 45 38     2.458    2.599   86.5   22.9   109   11.1 
2025-05-19 00:00 UT   09 45 31.3   +14 38 49     2.471    2.600   85.8   22.8   109   11.1 

    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.