(136199) Eris
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Opposition	17 Oct 2024	18.6	95.631 AU	94.653 AU	01h47m	-00°38'	169.1°	0.1°
Today	17 Nov 2024	18.6	95.624 AU	94.786 AU	01h45m	-00°42'	147.8°	0.3°

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 Eris are:

            e (Eccentricity)                : 0.4343064
            a (Semimajor axis)              : 68.1040879
            i (Inclination)                 : 43.77788
            Ω (Longitude of ascending node) : 36.06369
            ω (Argument of perihelion)      : 150.71785
            M (Mean anomaly)                : 210.56666
            Epoch                           : 2024 Oct 17

            L (Longitude of perihelion)     : 14.02130
            B (Latitude of perihelion)      : 19.77932
            P (Orbital period in years)     : 562.03            
        

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
2024-11-17 00:00 UT   01 45 54.3   +00 42 33    94.786   95.624  147.8    0.3    51   18.6 
2024-11-17 07:44 UT   01 45 53.7   +00 42 35    94.789   95.624  147.5    0.3    51   18.6 
2024-11-18 00:00 UT   01 45 52.3   +00 42 38    94.795   95.624  146.9    0.3    52   18.6 
2024-11-19 00:00 UT   01 45 50.3   +00 42 44    94.804   95.623  145.9    0.3    52   18.6 
2024-11-20 00:00 UT   01 45 48.4   +00 42 49    94.813   95.623  144.9    0.3    53   18.6 
2024-11-21 00:00 UT   01 45 46.4   +00 42 54    94.822   95.623  144.0    0.3    53   18.6 
2024-11-22 00:00 UT   01 45 44.5   +00 42 58    94.832   95.623  143.0    0.4    54   18.6 
2024-11-23 00:00 UT   01 45 42.6   +00 43 03    94.842   95.623  142.0    0.4    54   18.6 
2024-11-24 00:00 UT   01 45 40.7   +00 43 07    94.852   95.622  141.1    0.4    55   18.6 
2024-11-25 00:00 UT   01 45 38.8   +00 43 11    94.863   95.622  140.1    0.4    55   18.6 
2024-11-26 00:00 UT   01 45 37.0   +00 43 15    94.873   95.622  139.1    0.4    56   18.6 
2024-11-27 00:00 UT   01 45 35.2   +00 43 18    94.884   95.622  138.2    0.4    56   18.6 
2024-11-28 00:00 UT   01 45 33.4   +00 43 21    94.896   95.621  137.2    0.4    57   18.6 
2024-11-29 00:00 UT   01 45 31.6   +00 43 24    94.907   95.621  136.2    0.4    57   18.6 
2024-11-30 00:00 UT   01 45 29.9   +00 43 27    94.919   95.621  135.2    0.4    58   18.6 
2024-12-01 00:00 UT   01 45 28.2   +00 43 29    94.930   95.621  134.2    0.4    58   18.6 
2024-12-02 00:00 UT   01 45 26.5   +00 43 32    94.942   95.620  133.2    0.4    58   18.7 
2024-12-03 00:00 UT   01 45 24.9   +00 43 34    94.955   95.620  132.3    0.4    59   18.7 
2024-12-04 00:00 UT   01 45 23.2   +00 43 35    94.967   95.620  131.3    0.4    59   18.7 
2024-12-05 00:00 UT   01 45 21.6   +00 43 37    94.980   95.620  130.3    0.5    59   18.7 
2024-12-06 00:00 UT   01 45 20.1   +00 43 38    94.993   95.619  129.3    0.5    60   18.7 
2024-12-07 00:00 UT   01 45 18.5   +00 43 39    95.006   95.619  128.3    0.5    60   18.7 
2024-12-08 00:00 UT   01 45 17.0   +00 43 40    95.019   95.619  127.3    0.5    60   18.7 
2024-12-09 00:00 UT   01 45 15.5   +00 43 40    95.032   95.619  126.3    0.5    61   18.7 
2024-12-10 00:00 UT   01 45 14.1   +00 43 40    95.046   95.619  125.3    0.5    61   18.7 
2024-12-11 00:00 UT   01 45 12.7   +00 43 40    95.060   95.618  124.3    0.5    61   18.7 
2024-12-12 00:00 UT   01 45 11.3   +00 43 40    95.074   95.618  123.3    0.5    61   18.7 
2024-12-13 00:00 UT   01 45 10.0   +00 43 39    95.088   95.618  122.3    0.5    62   18.7 
2024-12-14 00:00 UT   01 45 08.7   +00 43 38    95.102   95.618  121.3    0.5    62   18.7 
2024-12-15 00:00 UT   01 45 07.4   +00 43 37    95.116   95.617  120.3    0.5    62   18.7 
2024-12-16 00:00 UT   01 45 06.1   +00 43 36    95.131   95.617  119.3    0.5    63   18.7 
2024-12-17 00:00 UT   01 45 04.9   +00 43 34    95.146   95.617  118.3    0.5    63   18.7 

    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.