(29) Amphitrite
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	22 Jan 2025	9.7	2.509 AU	1.594 AU	10h11m	+17°26'	152.6°	10.4°
Opposition	12 Feb 2025	9.2	2.526 AU	1.541 AU	09h52m	+18°37'	174.6°	2.1°

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)                : 0.0736232
            a (Semimajor axis)              : 2.5544444
            i (Inclination)                 : 6.07722
            Ω (Longitude of ascending node) : 356.26097
            ω (Argument of perihelion)      : 62.00528
            M (Mean anomaly)                : 48.39596
            Epoch                           : 2024 Oct 17

            L (Longitude of perihelion)     : 58.13221
            B (Latitude of perihelion)      : 5.36391
            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
2025-01-22 00:00 UT   10 11 49.8   +17 26 46     1.594    2.509  152.6   10.4   279    9.7 
2025-01-22 05:01 UT   10 11 40.8   +17 27 26     1.593    2.509  152.8   10.3   279    9.6 
2025-01-23 00:00 UT   10 11 05.9   +17 29 58     1.589    2.509  153.8   10.0   279    9.6 
2025-01-24 00:00 UT   10 10 20.6   +17 33 13     1.584    2.510  154.9    9.6   278    9.6 
2025-01-25 00:00 UT   10 09 33.8   +17 36 32     1.579    2.511  156.1    9.1   277    9.6 
2025-01-26 00:00 UT   10 08 45.7   +17 39 53     1.575    2.512  157.3    8.7   277    9.6 
2025-01-27 00:00 UT   10 07 56.2   +17 43 16     1.570    2.513  158.5    8.3   276    9.5 
2025-01-28 00:00 UT   10 07 05.5   +17 46 40     1.566    2.513  159.7    7.8   275    9.5 
2025-01-29 00:00 UT   10 06 13.6   +17 50 06     1.563    2.514  160.8    7.4   274    9.5 
2025-01-30 00:00 UT   10 05 20.5   +17 53 33     1.559    2.515  162.0    6.9   272    9.5 
2025-01-31 00:00 UT   10 04 26.4   +17 56 60     1.556    2.516  163.2    6.5   271    9.4 
2025-02-01 00:00 UT   10 03 31.2   +18 00 27     1.554    2.516  164.4    6.1   269    9.4 
2025-02-02 00:00 UT   10 02 35.1   +18 03 54     1.551    2.517  165.5    5.6   268    9.4 
2025-02-03 00:00 UT   10 01 38.2   +18 07 20     1.549    2.518  166.7    5.2   266    9.4 
2025-02-04 00:00 UT   10 00 40.4   +18 10 45     1.547    2.519  167.8    4.7   263    9.3 
2025-02-05 00:00 UT   09 59 41.9   +18 14 08     1.545    2.520  168.9    4.3   260    9.3 
2025-02-06 00:00 UT   09 58 42.8   +18 17 29     1.544    2.520  170.0    3.9   257    9.3 
2025-02-07 00:00 UT   09 57 43.0   +18 20 47     1.542    2.521  171.0    3.5   252    9.3 
2025-02-08 00:00 UT   09 56 42.8   +18 24 03     1.541    2.522  172.0    3.1   247    9.2 
2025-02-09 00:00 UT   09 55 42.1   +18 27 15     1.541    2.523  172.9    2.8   240    9.2 
2025-02-10 00:00 UT   09 54 41.1   +18 30 24     1.541    2.524  173.6    2.5   231    9.2 
2025-02-11 00:00 UT   09 53 39.8   +18 33 30     1.541    2.524  174.2    2.3   221    9.2 
2025-02-12 00:00 UT   09 52 38.4   +18 36 30     1.541    2.525  174.6    2.1   208    9.2 
2025-02-13 00:00 UT   09 51 36.7   +18 39 27     1.541    2.526  174.6    2.1   195    9.2 
2025-02-14 00:00 UT   09 50 35.1   +18 42 18     1.542    2.527  174.4    2.2   182    9.2 
2025-02-15 00:00 UT   09 49 33.5   +18 45 05     1.543    2.528  173.9    2.4   170    9.2 
2025-02-16 00:00 UT   09 48 31.9   +18 47 46     1.545    2.528  173.3    2.6   161    9.2 
2025-02-17 00:00 UT   09 47 30.6   +18 50 21     1.546    2.529  172.5    2.9   153    9.2 
2025-02-18 00:00 UT   09 46 29.5   +18 52 50     1.548    2.530  171.5    3.3   147    9.3 
2025-02-19 00:00 UT   09 45 28.8   +18 55 13     1.550    2.531  170.5    3.7   142    9.3 
2025-02-20 00:00 UT   09 44 28.5   +18 57 29     1.553    2.532  169.5    4.1   138    9.3 
2025-02-21 00:00 UT   09 43 28.6   +18 59 39     1.556    2.532  168.4    4.5   135    9.4 

    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.