(164) Eva
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	27 Apr 2024	14.8	3.485 AU	3.018 AU	10h54m	+38°10'	109.4°	15.8°
Opposition	23 Apr 2025	13.8	3.307 AU	2.366 AU	14h39m	+10°20'	155.5°	7.3°

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 Eva are:

            e (Eccentricity)                : 0.3468852
            a (Semimajor axis)              : 2.6314930
            i (Inclination)                 : 24.47557
            Ω (Longitude of ascending node) : 76.78280
            ω (Argument of perihelion)      : 284.04067
            M (Mean anomaly)                : 145.95348
            Epoch                           : 2024 Mar 31

            L (Longitude of perihelion)     : 2.14700
            B (Latitude of perihelion)      : -23.69872
            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. 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
2024-04-27 00:00 UT   10 54 07.4   +38 10 04     3.018    3.485  109.4   15.8   127   14.8 
2024-04-27 01:07 UT   10 54 06.8   +38 09 45     3.019    3.485  109.4   15.8   127   14.8 
2024-04-28 00:00 UT   10 53 55.5   +38 03 00     3.031    3.486  108.6   15.9   126   14.8 
2024-04-29 00:00 UT   10 53 45.0   +37 55 49     3.044    3.487  107.8   16.0   126   14.8 
2024-04-30 00:00 UT   10 53 35.9   +37 48 30     3.057    3.488  107.0   16.0   125   14.8 
2024-05-01 00:00 UT   10 53 28.2   +37 41 05     3.070    3.489  106.2   16.1   125   14.8 
2024-05-02 00:00 UT   10 53 21.8   +37 33 34     3.084    3.490  105.4   16.2   124   14.9 
2024-05-03 00:00 UT   10 53 16.7   +37 25 55     3.097    3.491  104.7   16.2   123   14.9 
2024-05-04 00:00 UT   10 53 13.0   +37 18 11     3.110    3.492  103.9   16.3   123   14.9 
2024-05-05 00:00 UT   10 53 10.6   +37 10 21     3.123    3.493  103.1   16.3   122   14.9 
2024-05-06 00:00 UT   10 53 09.5   +37 02 24     3.137    3.494  102.3   16.4   122   14.9 
2024-05-07 00:00 UT   10 53 09.7   +36 54 23     3.150    3.494  101.5   16.4   121   14.9 
2024-05-08 00:00 UT   10 53 11.2   +36 46 16     3.164    3.495  100.7   16.5   121   14.9 
2024-05-09 00:00 UT   10 53 14.0   +36 38 03     3.178    3.496   99.9   16.5   120   14.9 
2024-05-10 00:00 UT   10 53 18.1   +36 29 46     3.191    3.497   99.2   16.6   120   14.9 
2024-05-11 00:00 UT   10 53 23.4   +36 21 24     3.205    3.498   98.4   16.6   120   15.0 
2024-05-12 00:00 UT   10 53 29.9   +36 12 57     3.219    3.499   97.6   16.6   119   15.0 
2024-05-13 00:00 UT   10 53 37.6   +36 04 25     3.232    3.500   96.9   16.7   119   15.0 
2024-05-14 00:00 UT   10 53 46.6   +35 55 50     3.246    3.501   96.1   16.7   118   15.0 
2024-05-15 00:00 UT   10 53 56.7   +35 47 10     3.260    3.501   95.3   16.7   118   15.0 
2024-05-16 00:00 UT   10 54 08.0   +35 38 27     3.274    3.502   94.6   16.7   117   15.0 
2024-05-17 00:00 UT   10 54 20.5   +35 29 39     3.288    3.503   93.8   16.7   117   15.0 
2024-05-18 00:00 UT   10 54 34.0   +35 20 48     3.301    3.504   93.0   16.8   117   15.0 
2024-05-19 00:00 UT   10 54 48.7   +35 11 54     3.315    3.505   92.3   16.8   116   15.0 
2024-05-20 00:00 UT   10 55 04.5   +35 02 56     3.329    3.506   91.5   16.8   116   15.0 
2024-05-21 00:00 UT   10 55 21.4   +34 53 55     3.343    3.506   90.8   16.8   115   15.1 
2024-05-22 00:00 UT   10 55 39.3   +34 44 51     3.357    3.507   90.0   16.8   115   15.1 
2024-05-23 00:00 UT   10 55 58.3   +34 35 44     3.371    3.508   89.3   16.8   115   15.1 
2024-05-24 00:00 UT   10 56 18.3   +34 26 34     3.385    3.509   88.6   16.8   114   15.1 
2024-05-25 00:00 UT   10 56 39.4   +34 17 22     3.399    3.509   87.8   16.8   114   15.1 
2024-05-26 00:00 UT   10 57 01.4   +34 08 07     3.413    3.510   87.1   16.8   114   15.1 
2024-05-27 00:00 UT   10 57 24.4   +33 58 49     3.427    3.511   86.3   16.7   113   15.1 

    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.