(654) Zelinda
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	2 Jul 2025	13.8	2.548 AU	2.636 AU	01h12m	+26°31'	73.9°	22.5°
Opposition	27 Oct 2025	11.7	2.264 AU	1.340 AU	01h20m	+39°22'	151.5°	12.1°

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 Zelinda are:

            e (Eccentricity)                : 0.2314759
            a (Semimajor axis)              : 2.2967463
            i (Inclination)                 : 18.09754
            Ω (Longitude of ascending node) : 278.32504
            ω (Argument of perihelion)      : 214.57804
            M (Mean anomaly)                : 237.10678
            Epoch                           : 2025 May 05

            L (Longitude of perihelion)     : 311.55740
            B (Latitude of perihelion)      : -10.15400
            P (Orbital period in years)     : 3.48            
        

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
2025-07-02 00:00 UT   01 12 23.5   +26 31 39     2.636    2.548   73.9   22.5   252   13.8 
2025-07-02 04:32 UT   01 12 36.8   +26 33 59     2.633    2.547   74.0   22.6   252   13.8 
2025-07-03 00:00 UT   01 13 34.0   +26 43 56     2.622    2.546   74.5   22.6   252   13.8 
2025-07-04 00:00 UT   01 14 44.1   +26 56 13     2.608    2.543   75.1   22.7   252   13.8 
2025-07-05 00:00 UT   01 15 53.8   +27 08 28     2.595    2.541   75.7   22.8   251   13.8 
2025-07-06 00:00 UT   01 17 02.9   +27 20 42     2.581    2.539   76.2   22.9   251   13.8 
2025-07-07 00:00 UT   01 18 11.6   +27 32 55     2.567    2.537   76.8   23.0   251   13.8 
2025-07-08 00:00 UT   01 19 19.7   +27 45 07     2.554    2.535   77.4   23.0   251   13.8 
2025-07-09 00:00 UT   01 20 27.4   +27 57 19     2.540    2.533   78.1   23.1   251   13.7 
2025-07-10 00:00 UT   01 21 34.5   +28 09 29     2.526    2.531   78.7   23.2   251   13.7 
2025-07-11 00:00 UT   01 22 41.1   +28 21 37     2.512    2.529   79.3   23.3   251   13.7 
2025-07-12 00:00 UT   01 23 47.1   +28 33 45     2.499    2.526   79.9   23.3   250   13.7 
2025-07-13 00:00 UT   01 24 52.6   +28 45 52     2.485    2.524   80.5   23.4   250   13.7 
2025-07-14 00:00 UT   01 25 57.4   +28 57 57     2.471    2.522   81.1   23.5   250   13.7 
2025-07-15 00:00 UT   01 27 01.7   +29 10 01     2.457    2.520   81.7   23.5   250   13.7 
2025-07-16 00:00 UT   01 28 05.4   +29 22 03     2.443    2.518   82.3   23.6   250   13.7 
2025-07-17 00:00 UT   01 29 08.4   +29 34 05     2.429    2.516   82.9   23.6   250   13.7 
2025-07-18 00:00 UT   01 30 10.8   +29 46 04     2.416    2.513   83.6   23.7   249   13.6 
2025-07-19 00:00 UT   01 31 12.5   +29 58 03     2.402    2.511   84.2   23.7   249   13.6 
2025-07-20 00:00 UT   01 32 13.5   +30 09 59     2.388    2.509   84.8   23.8   249   13.6 
2025-07-21 00:00 UT   01 33 13.8   +30 21 54     2.374    2.507   85.4   23.8   249   13.6 
2025-07-22 00:00 UT   01 34 13.4   +30 33 48     2.360    2.505   86.1   23.9   249   13.6 
2025-07-23 00:00 UT   01 35 12.2   +30 45 39     2.346    2.502   86.7   23.9   248   13.6 
2025-07-24 00:00 UT   01 36 10.2   +30 57 29     2.332    2.500   87.3   23.9   248   13.6 
2025-07-25 00:00 UT   01 37 07.5   +31 09 17     2.318    2.498   88.0   24.0   248   13.5 
2025-07-26 00:00 UT   01 38 03.9   +31 21 03     2.304    2.496   88.6   24.0   248   13.5 
2025-07-27 00:00 UT   01 38 59.5   +31 32 46     2.290    2.493   89.3   24.0   248   13.5 
2025-07-28 00:00 UT   01 39 54.3   +31 44 28     2.277    2.491   89.9   24.1   247   13.5 
2025-07-29 00:00 UT   01 40 48.2   +31 56 07     2.263    2.489   90.6   24.1   247   13.5 
2025-07-30 00:00 UT   01 41 41.2   +32 07 44     2.249    2.487   91.2   24.1   247   13.5 

    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.