(164) Eva
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	30 Jun 2026	11.9	1.898 AU	1.218 AU	23h30m	-37°36'	116.1°	28.8°
Opposition	31 Aug 2026	11.0	1.754 AU	0.931 AU	00h36m	-53°17'	129.4°	26.4°

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 Eva are:

            e (Eccentricity)                : 0.3462488
            a (Semimajor axis)              : 2.6327804
            i (Inclination)                 : 24.47311
            Ω (Longitude of ascending node) : 76.77959
            ω (Argument of perihelion)      : 284.00697
            M (Mean anomaly)                : 330.59377
            Epoch                           : 2026 Jun 09

            L (Longitude of perihelion)     : 2.10692
            B (Latitude of perihelion)      : -23.70004
            P (Orbital period in years)     : 4.27            
        

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
2026-06-30 00:00 UT   23 30 55.4   -37 36 06     1.218    1.898  116.1   28.8   260   11.9 
2026-06-30 15:39 UT   23 32 10.4   -37 45 06     1.212    1.896  116.3   28.7   260   11.8 
2026-07-01 00:00 UT   23 32 50.3   -37 49 56     1.209    1.895  116.5   28.7   260   11.8 
2026-07-02 00:00 UT   23 34 44.5   -38 03 56     1.201    1.892  116.9   28.6   261   11.8 
2026-07-03 00:00 UT   23 36 37.9   -38 18 07     1.192    1.889  117.4   28.5   261   11.8 
2026-07-04 00:00 UT   23 38 30.5   -38 32 29     1.184    1.886  117.8   28.5   262   11.8 
2026-07-05 00:00 UT   23 40 22.3   -38 47 02     1.176    1.883  118.2   28.4   262   11.8 
2026-07-06 00:00 UT   23 42 13.2   -39 01 45     1.168    1.880  118.6   28.3   263   11.7 
2026-07-07 00:00 UT   23 44 03.1   -39 16 38     1.160    1.878  119.0   28.3   263   11.7 
2026-07-08 00:00 UT   23 45 52.1   -39 31 42     1.153    1.875  119.5   28.2   264   11.7 
2026-07-09 00:00 UT   23 47 40.1   -39 46 55     1.145    1.872  119.9   28.1   265   11.7 
2026-07-10 00:00 UT   23 49 27.1   -40 02 18     1.138    1.869  120.3   28.0   265   11.7 
2026-07-11 00:00 UT   23 51 12.9   -40 17 50     1.130    1.866  120.6   27.9   266   11.6 
2026-07-12 00:00 UT   23 52 57.6   -40 33 31     1.123    1.863  121.0   27.9   266   11.6 
2026-07-13 00:00 UT   23 54 41.0   -40 49 21     1.116    1.861  121.4   27.8   267   11.6 
2026-07-14 00:00 UT   23 56 23.3   -41 05 19     1.109    1.858  121.8   27.7   268   11.6 
2026-07-15 00:00 UT   23 58 04.2   -41 21 24     1.103    1.855  122.1   27.6   268   11.6 
2026-07-16 00:00 UT   23 59 43.8   -41 37 37     1.096    1.852  122.5   27.6   269   11.5 
2026-07-17 00:00 UT   00 01 22.0   -41 53 57     1.089    1.850  122.9   27.5   270   11.5 
2026-07-18 00:00 UT   00 02 58.7   -42 10 23     1.083    1.847  123.2   27.4   271   11.5 
2026-07-19 00:00 UT   00 04 34.0   -42 26 55     1.077    1.844  123.5   27.3   271   11.5 
2026-07-20 00:00 UT   00 06 07.7   -42 43 32     1.071    1.842  123.9   27.3   272   11.5 

    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.