(13) Egeria
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	19 Mar 2026	10.8	2.515 AU	1.659 AU	14h25m	-04°27'	141.4°	14.3°
Opposition	19 Apr 2026	10.2	2.544 AU	1.544 AU	13h57m	-04°45'	173.2°	2.7°

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 Egeria are:

            e (Eccentricity)                : 0.0846820
            a (Semimajor axis)              : 2.5762588
            i (Inclination)                 : 16.52553
            Ω (Longitude of ascending node) : 43.17717
            ω (Argument of perihelion)      : 79.06456
            M (Mean anomaly)                : 40.99101
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 121.78264
            B (Latitude of perihelion)      : 16.21709
            P (Orbital period in years)     : 4.14            
        

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
2026-03-19 00:00 UT   14 25 54.7   -04 27 00     1.659    2.515  141.4   14.3   277   10.8 
2026-03-19 12:16 UT   14 25 37.9   -04 27 21     1.656    2.516  142.0   14.1   277   10.8 
2026-03-20 00:00 UT   14 25 21.4   -04 27 41     1.652    2.516  142.5   13.9   276   10.8 
2026-03-21 00:00 UT   14 24 46.3   -04 28 19     1.645    2.517  143.6   13.6   276   10.8 
2026-03-22 00:00 UT   14 24 09.6   -04 28 55     1.638    2.518  144.7   13.2   276   10.8 
2026-03-23 00:00 UT   14 23 31.2   -04 29 30     1.632    2.519  145.8   12.8   275   10.7 
2026-03-24 00:00 UT   14 22 51.2   -04 30 03     1.625    2.520  146.9   12.5   275   10.7 
2026-03-25 00:00 UT   14 22 09.5   -04 30 34     1.619    2.521  148.0   12.1   274   10.7 
2026-03-26 00:00 UT   14 21 26.3   -04 31 05     1.613    2.522  149.2   11.7   274   10.7 
2026-03-27 00:00 UT   14 20 41.6   -04 31 34     1.607    2.522  150.3   11.3   273   10.6 
2026-03-28 00:00 UT   14 19 55.4   -04 32 03     1.601    2.523  151.4   10.9   273   10.6 
2026-03-29 00:00 UT   14 19 07.7   -04 32 31     1.596    2.524  152.5   10.5   272   10.6 
2026-03-30 00:00 UT   14 18 18.6   -04 32 58     1.591    2.525  153.7   10.1   271   10.6 
2026-03-31 00:00 UT   14 17 28.1   -04 33 25     1.586    2.526  154.8    9.7   270   10.6 
2026-04-01 00:00 UT   14 16 36.3   -04 33 52     1.582    2.527  156.0    9.3   270   10.5 
2026-04-02 00:00 UT   14 15 43.2   -04 34 19     1.577    2.528  157.1    8.9   269   10.5 
2026-04-03 00:00 UT   14 14 48.9   -04 34 46     1.573    2.529  158.2    8.4   268   10.5 
2026-04-04 00:00 UT   14 13 53.5   -04 35 13     1.569    2.530  159.4    8.0   267   10.5 
2026-04-05 00:00 UT   14 12 56.9   -04 35 41     1.566    2.531  160.5    7.6   265   10.4 
2026-04-06 00:00 UT   14 11 59.2   -04 36 10     1.562    2.531  161.6    7.2   264   10.4 
2026-04-07 00:00 UT   14 11 00.5   -04 36 39     1.559    2.532  162.7    6.7   263   10.4 
2026-04-08 00:00 UT   14 10 00.8   -04 37 10     1.556    2.533  163.8    6.3   261   10.4 
2026-04-09 00:00 UT   14 09 00.3   -04 37 42     1.554    2.534  164.9    5.9   259   10.4 
2026-04-10 00:00 UT   14 07 58.9   -04 38 16     1.552    2.535  166.0    5.5   257   10.3 
2026-04-11 00:00 UT   14 06 56.8   -04 38 51     1.550    2.536  167.0    5.1   254   10.3 
2026-04-12 00:00 UT   14 05 54.0   -04 39 29     1.548    2.537  168.1    4.7   251   10.3 
2026-04-13 00:00 UT   14 04 50.5   -04 40 08     1.546    2.538  169.1    4.3   247   10.3 
2026-04-14 00:00 UT   14 03 46.5   -04 40 50     1.545    2.539  170.0    3.9   243   10.2 
2026-04-15 00:00 UT   14 02 42.0   -04 41 35     1.544    2.540  170.8    3.6   237   10.2 
2026-04-16 00:00 UT   14 01 37.1   -04 42 22     1.544    2.541  171.6    3.3   231   10.2 
2026-04-17 00:00 UT   14 00 31.9   -04 43 12     1.543    2.541  172.3    3.0   224   10.2 
2026-04-18 00:00 UT   13 59 26.4   -04 44 06     1.543    2.542  172.8    2.8   215   10.2 

    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.