(164) Eva
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	28 Jan 2026	14.0	2.464 AU	3.215 AU	18h15m	-24°40'	34.3°	13.0°
Opposition	31 Aug 2026	11.0	1.754 AU	0.931 AU	00h36m	-53°17'	129.3°	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)                : 0.3463142
            a (Semimajor axis)              : 2.6326903
            i (Inclination)                 : 24.47471
            Ω (Longitude of ascending node) : 76.78065
            ω (Argument of perihelion)      : 284.01979
            M (Mean anomaly)                : 284.44450
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 2.12209
            B (Latitude of perihelion)      : -23.70018
            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
2026-01-28 00:00 UT   18 15 17.3   -24 40 52     3.215    2.464   34.3   13.0   267   14.0 
2026-01-28 05:38 UT   18 15 44.8   -24 41 50     3.213    2.464   34.4   13.0   267   14.0 
2026-01-29 00:00 UT   18 17 14.7   -24 44 59     3.204    2.461   34.8   13.2   266   14.0 
2026-01-30 00:00 UT   18 19 12.4   -24 49 03     3.193    2.457   35.4   13.4   266   14.0 
2026-01-31 00:00 UT   18 21 10.2   -24 53 03     3.181    2.453   36.0   13.6   266   14.0 
2026-02-01 00:00 UT   18 23 08.3   -24 56 60     3.169    2.449   36.5   13.9   266   14.0 
2026-02-02 00:00 UT   18 25 06.5   -25 00 54     3.158    2.445   37.1   14.1   265   14.0 
2026-02-03 00:00 UT   18 27 04.9   -25 04 44     3.146    2.441   37.7   14.3   265   14.0 
2026-02-04 00:00 UT   18 29 03.6   -25 08 32     3.134    2.437   38.3   14.5   265   14.0 
2026-02-05 00:00 UT   18 31 02.4   -25 12 16     3.122    2.434   38.8   14.7   264   14.0 
2026-02-06 00:00 UT   18 33 01.4   -25 15 58     3.110    2.430   39.4   14.9   264   14.0 
2026-02-07 00:00 UT   18 35 00.5   -25 19 36     3.097    2.426   40.0   15.1   264   14.0 
2026-02-08 00:00 UT   18 36 59.9   -25 23 11     3.085    2.422   40.6   15.4   264   14.0 
2026-02-09 00:00 UT   18 38 59.4   -25 26 43     3.073    2.418   41.1   15.6   263   14.0 
2026-02-10 00:00 UT   18 40 59.1   -25 30 13     3.060    2.414   41.7   15.8   263   14.0 
2026-02-11 00:00 UT   18 42 59.0   -25 33 39     3.048    2.410   42.3   16.0   263   14.0 
2026-02-12 00:00 UT   18 44 59.1   -25 37 02     3.035    2.406   42.8   16.2   263   14.0 
2026-02-13 00:00 UT   18 46 59.3   -25 40 23     3.022    2.402   43.4   16.4   263   14.0 
2026-02-14 00:00 UT   18 48 59.6   -25 43 41     3.009    2.399   44.0   16.6   262   14.0 
2026-02-15 00:00 UT   18 51 00.2   -25 46 56     2.996    2.395   44.5   16.8   262   13.9 

    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.