(29) Amphitrite
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Opposition	28 May 2026	9.7	2.739 AU	1.734 AU	16h16m	-30°32'	170.9°	3.4°
Today	16 Jun 2026	10.0	2.736 AU	1.771 AU	15h57m	-29°45'	157.1°	8.3°

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)                : 0.0731635
            a (Semimajor axis)              : 2.5545700
            i (Inclination)                 : 6.07707
            Ω (Longitude of ascending node) : 356.25006
            ω (Argument of perihelion)      : 61.93054
            M (Mean anomaly)                : 193.37398
            Epoch                           : 2026 Jun 09

            L (Longitude of perihelion)     : 58.04633
            B (Latitude of perihelion)      : 5.36004
            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.

Ephemerides:

Date       Time       RA (2000)    DEC (2000)    delta   radius  elong  phase   PA    magn
2026-06-16 00:00 UT   15 57 45.2   -29 45 16     1.771    2.736  157.1    8.3    80   10.0 
2026-06-16 16:45 UT   15 57 09.8   -29 43 01     1.774    2.736  156.4    8.6    80   10.0 
2026-06-17 00:00 UT   15 56 54.7   -29 42 02     1.776    2.736  156.1    8.7    81   10.0 
2026-06-18 00:00 UT   15 56 05.5   -29 38 45     1.781    2.736  155.0    9.0    82   10.0 
2026-06-19 00:00 UT   15 55 17.6   -29 35 27     1.786    2.735  154.0    9.4    83   10.0 
2026-06-20 00:00 UT   15 54 31.1   -29 32 07     1.791    2.735  152.9    9.7    84   10.1 
2026-06-21 00:00 UT   15 53 46.0   -29 28 46     1.797    2.735  151.9   10.1    85   10.1 
2026-06-22 00:00 UT   15 53 02.4   -29 25 24     1.802    2.735  150.8   10.4    86   10.1 
2026-06-23 00:00 UT   15 52 20.4   -29 22 02     1.808    2.735  149.8   10.8    87   10.1 
2026-06-24 00:00 UT   15 51 39.8   -29 18 39     1.814    2.734  148.7   11.1    87   10.1 
2026-06-25 00:00 UT   15 51 00.8   -29 15 16     1.821    2.734  147.7   11.5    88   10.2 
2026-06-26 00:00 UT   15 50 23.3   -29 11 54     1.828    2.734  146.6   11.8    89   10.2 
2026-06-27 00:00 UT   15 49 47.5   -29 08 31     1.834    2.734  145.6   12.1    89   10.2 
2026-06-28 00:00 UT   15 49 13.3   -29 05 10     1.841    2.734  144.5   12.5    90   10.2 
2026-06-29 00:00 UT   15 48 40.7   -29 01 50     1.849    2.733  143.5   12.8    91   10.2 
2026-06-30 00:00 UT   15 48 09.8   -28 58 31     1.856    2.733  142.4   13.1    91   10.3 
2026-07-01 00:00 UT   15 47 40.5   -28 55 13     1.864    2.733  141.4   13.4    92   10.3 
2026-07-02 00:00 UT   15 47 12.9   -28 51 58     1.872    2.733  140.4   13.7    92   10.3 
2026-07-03 00:00 UT   15 46 47.1   -28 48 44     1.880    2.732  139.4   14.0    93   10.3 
2026-07-04 00:00 UT   15 46 22.9   -28 45 32     1.888    2.732  138.3   14.3    93   10.3 
2026-07-05 00:00 UT   15 46 00.5   -28 42 23     1.896    2.732  137.3   14.6    93   10.4 
2026-07-06 00:00 UT   15 45 39.7   -28 39 16     1.905    2.732  136.3   14.9    94   10.4 
2026-07-07 00:00 UT   15 45 20.7   -28 36 13     1.914    2.732  135.3   15.2    94   10.4 
2026-07-08 00:00 UT   15 45 03.5   -28 33 12     1.922    2.731  134.3   15.4    94   10.4 
2026-07-09 00:00 UT   15 44 47.9   -28 30 14     1.932    2.731  133.3   15.7    95   10.4 
2026-07-10 00:00 UT   15 44 34.1   -28 27 20     1.941    2.731  132.3   16.0    95   10.5 
2026-07-11 00:00 UT   15 44 22.1   -28 24 29     1.950    2.731  131.3   16.2    95   10.5 
2026-07-12 00:00 UT   15 44 11.8   -28 21 42     1.960    2.730  130.4   16.5    96   10.5 
2026-07-13 00:00 UT   15 44 03.2   -28 18 58     1.969    2.730  129.4   16.7    96   10.5 
2026-07-14 00:00 UT   15 43 56.4   -28 16 19     1.979    2.730  128.4   17.0    96   10.5 
2026-07-15 00:00 UT   15 43 51.3   -28 13 44     1.989    2.730  127.5   17.2    97   10.6 
2026-07-16 00:00 UT   15 43 48.0   -28 11 12     1.999    2.729  126.5   17.4    97   10.6 

    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.