(516) Amherstia
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	3 Sep 2026	13.8	3.272 AU	2.571 AU	01h42m	+24°14'	126.5°	14.4°
Opposition	18 Oct 2026	13.2	3.329 AU	2.358 AU	01h07m	+23°48'	164.6°	4.5°

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 Amherstia are:

            e (Eccentricity)                : 0.2757442
            a (Semimajor axis)              : 2.6773311
            i (Inclination)                 : 12.95537
            Ω (Longitude of ascending node) : 328.71225
            ω (Argument of perihelion)      : 258.02361
            M (Mean anomaly)                : 115.00505
            Epoch                           : 2026 Jun 09

            L (Longitude of perihelion)     : 46.43241
            B (Latitude of perihelion)      : -12.66863
            P (Orbital period in years)     : 4.38            
        

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
2026-09-03 00:00 UT   01 42 47.8   +24 14 48     2.571    3.272  126.5   14.4   239   13.8 
2026-09-03 22:07 UT   01 42 25.3   +24 17 35     2.562    3.274  127.4   14.2   238   13.8 
2026-09-04 00:00 UT   01 42 23.3   +24 17 48     2.561    3.274  127.4   14.2   238   13.8 
2026-09-05 00:00 UT   01 41 57.4   +24 20 40     2.552    3.275  128.4   14.0   238   13.7 
2026-09-06 00:00 UT   01 41 30.3   +24 23 24     2.542    3.277  129.4   13.7   237   13.7 
2026-09-07 00:00 UT   01 41 01.7   +24 25 59     2.533    3.278  130.4   13.5   237   13.7 
2026-09-08 00:00 UT   01 40 31.9   +24 28 24     2.524    3.279  131.4   13.3   236   13.7 
2026-09-09 00:00 UT   01 40 00.8   +24 30 41     2.516    3.281  132.4   13.1   236   13.7 
2026-09-10 00:00 UT   01 39 28.4   +24 32 49     2.507    3.282  133.4   12.9   235   13.7 
2026-09-11 00:00 UT   01 38 54.7   +24 34 47     2.499    3.283  134.4   12.6   235   13.7 
2026-09-12 00:00 UT   01 38 19.8   +24 36 36     2.491    3.285  135.4   12.4   234   13.6 
2026-09-13 00:00 UT   01 37 43.6   +24 38 16     2.483    3.286  136.5   12.2   234   13.6 
2026-09-14 00:00 UT   01 37 06.2   +24 39 45     2.475    3.287  137.5   11.9   233   13.6 
2026-09-15 00:00 UT   01 36 27.7   +24 41 05     2.467    3.289  138.5   11.7   232   13.6 
2026-09-16 00:00 UT   01 35 47.9   +24 42 15     2.460    3.290  139.5   11.4   231   13.6 
2026-09-17 00:00 UT   01 35 07.1   +24 43 16     2.453    3.291  140.5   11.2   231   13.6 
2026-09-18 00:00 UT   01 34 25.1   +24 44 06     2.446    3.293  141.5   10.9   230   13.6 
2026-09-19 00:00 UT   01 33 42.1   +24 44 46     2.439    3.294  142.5   10.7   229   13.5 
2026-09-20 00:00 UT   01 32 58.0   +24 45 16     2.433    3.295  143.6   10.4   228   13.5 
2026-09-21 00:00 UT   01 32 12.9   +24 45 35     2.427    3.297  144.6   10.2   227   13.5 
2026-09-22 00:00 UT   01 31 26.8   +24 45 45     2.421    3.298  145.6    9.9   226   13.5 
2026-09-23 00:00 UT   01 30 39.8   +24 45 44     2.415    3.299  146.6    9.6   225   13.5 
2026-09-24 00:00 UT   01 29 51.8   +24 45 32     2.409    3.300  147.6    9.4   224   13.5 
2026-09-25 00:00 UT   01 29 03.0   +24 45 11     2.404    3.302  148.6    9.1   223   13.4 
2026-09-26 00:00 UT   01 28 13.4   +24 44 39     2.399    3.303  149.6    8.8   222   13.4 
2026-09-27 00:00 UT   01 27 22.9   +24 43 56     2.394    3.304  150.6    8.6   220   13.4 
2026-09-28 00:00 UT   01 26 31.7   +24 43 03     2.390    3.305  151.5    8.3   219   13.4 
2026-09-29 00:00 UT   01 25 39.8   +24 41 60     2.385    3.307  152.5    8.0   218   13.4 
2026-09-30 00:00 UT   01 24 47.1   +24 40 46     2.381    3.308  153.5    7.8   216   13.4 
2026-10-01 00:00 UT   01 23 53.9   +24 39 22     2.378    3.309  154.4    7.5   214   13.4 
2026-10-02 00:00 UT   01 23 00.0   +24 37 47     2.374    3.310  155.3    7.3   212   13.3 
2026-10-03 00:00 UT   01 22 05.7   +24 36 02     2.371    3.311  156.2    7.0   211   13.3 

    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.