(29) Amphitrite
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Opposition	12 Feb 2025	9.2	2.526 AU	1.541 AU	09h52m	+18°37'	174.6°	2.1°
Today	14 Mar 2025	9.9	2.549 AU	1.674 AU	09h26m	+19°14'	144.4°	13.1°

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
2025-03-14 00:00 UT   09 26 23.5   +19 14 59     1.674    2.549  144.4   13.1   114    9.9 
2025-03-14 11:16 UT   09 26 07.7   +19 14 39     1.678    2.549  143.9   13.3   114    9.9 
2025-03-15 00:00 UT   09 25 50.1   +19 14 13     1.682    2.550  143.3   13.5   113    9.9 
2025-03-16 00:00 UT   09 25 18.4   +19 13 18     1.691    2.551  142.2   13.8   113    9.9 
2025-03-17 00:00 UT   09 24 48.3   +19 12 15     1.699    2.551  141.1   14.2   113   10.0 
2025-03-18 00:00 UT   09 24 19.9   +19 11 04     1.708    2.552  140.0   14.5   113   10.0 
2025-03-19 00:00 UT   09 23 53.3   +19 09 46     1.717    2.553  138.9   14.8   112   10.0 
2025-03-20 00:00 UT   09 23 28.3   +19 08 20     1.727    2.554  137.8   15.2   112   10.0 
2025-03-21 00:00 UT   09 23 05.1   +19 06 46     1.736    2.554  136.8   15.5   112   10.1 
2025-03-22 00:00 UT   09 22 43.6   +19 05 05     1.745    2.555  135.7   15.8   112   10.1 
2025-03-23 00:00 UT   09 22 23.8   +19 03 16     1.755    2.556  134.7   16.1   111   10.1 
2025-03-24 00:00 UT   09 22 05.8   +19 01 20     1.765    2.557  133.6   16.4   111   10.1 
2025-03-25 00:00 UT   09 21 49.5   +18 59 17     1.775    2.558  132.6   16.7   111   10.1 
2025-03-26 00:00 UT   09 21 35.0   +18 57 06     1.785    2.558  131.6   17.0   111   10.2 
2025-03-27 00:00 UT   09 21 22.3   +18 54 49     1.796    2.559  130.5   17.2   111   10.2 
2025-03-28 00:00 UT   09 21 11.3   +18 52 24     1.806    2.560  129.5   17.5   111   10.2 
2025-03-29 00:00 UT   09 21 02.1   +18 49 52     1.817    2.561  128.5   17.8   110   10.2 
2025-03-30 00:00 UT   09 20 54.6   +18 47 14     1.828    2.562  127.5   18.0   110   10.3 
2025-03-31 00:00 UT   09 20 48.9   +18 44 28     1.839    2.562  126.5   18.3   110   10.3 
2025-04-01 00:00 UT   09 20 44.9   +18 41 36     1.850    2.563  125.5   18.5   110   10.3 
2025-04-02 00:00 UT   09 20 42.6   +18 38 38     1.861    2.564  124.6   18.7   110   10.3 
2025-04-03 00:00 UT   09 20 42.0   +18 35 33     1.872    2.565  123.6   18.9   110   10.3 
2025-04-04 00:00 UT   09 20 43.2   +18 32 21     1.884    2.566  122.6   19.2   110   10.4 
2025-04-05 00:00 UT   09 20 46.0   +18 29 03     1.896    2.566  121.7   19.4   110   10.4 
2025-04-06 00:00 UT   09 20 50.5   +18 25 39     1.907    2.567  120.7   19.6   109   10.4 
2025-04-07 00:00 UT   09 20 56.6   +18 22 09     1.919    2.568  119.8   19.8   109   10.4 
2025-04-08 00:00 UT   09 21 04.4   +18 18 33     1.931    2.569  118.9   20.0   109   10.4 
2025-04-09 00:00 UT   09 21 13.7   +18 14 51     1.943    2.569  117.9   20.1   109   10.5 
2025-04-10 00:00 UT   09 21 24.7   +18 11 03     1.955    2.570  117.0   20.3   109   10.5 
2025-04-11 00:00 UT   09 21 37.2   +18 07 10     1.967    2.571  116.1   20.5   109   10.5 
2025-04-12 00:00 UT   09 21 51.3   +18 03 11     1.980    2.572  115.2   20.6   109   10.5 
2025-04-13 00:00 UT   09 22 06.9   +17 59 06     1.992    2.573  114.3   20.8   109   10.5 

    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.