(654) Zelinda
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Opposition	27 Oct 2025	11.7	2.264 AU	1.340 AU	01h20m	+39°22'	151.5°	12.1°
Today	20 Dec 2025	12.2	2.120 AU	1.496 AU	01h03m	+27°52'	115.9°	24.7°

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 Zelinda are:

            e (Eccentricity)                : 0.2315731
            a (Semimajor axis)              : 2.2967353
            i (Inclination)                 : 18.09758
            Ω (Longitude of ascending node) : 278.32453
            ω (Argument of perihelion)      : 214.57881
            M (Mean anomaly)                : 293.75033
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 311.55764
            B (Latitude of perihelion)      : -10.15422
            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.

Ephemerides:

Date       Time       RA (2000)    DEC (2000)    delta   radius  elong  phase   PA    magn
2025-12-20 00:00 UT   01 03 30.2   +27 52 48     1.496    2.120  115.9   24.7    76   12.2 
2025-12-20 17:27 UT   01 04 00.2   +27 45 09     1.501    2.118  115.3   24.8    76   12.3 
2025-12-21 00:00 UT   01 04 11.7   +27 42 19     1.503    2.117  115.1   24.9    76   12.3 
2025-12-22 00:00 UT   01 04 55.3   +27 32 03     1.510    2.114  114.3   25.1    75   12.3 
2025-12-23 00:00 UT   01 05 40.8   +27 22 02     1.518    2.112  113.4   25.3    75   12.3 
2025-12-24 00:00 UT   01 06 28.2   +27 12 15     1.525    2.109  112.6   25.5    74   12.3 
2025-12-25 00:00 UT   01 07 17.4   +27 02 42     1.533    2.106  111.8   25.7    74   12.3 
2025-12-26 00:00 UT   01 08 08.5   +26 53 23     1.541    2.104  111.0   25.9    74   12.3 
2025-12-27 00:00 UT   01 09 01.4   +26 44 18     1.548    2.101  110.1   26.1    73   12.3 
2025-12-28 00:00 UT   01 09 56.0   +26 35 28     1.556    2.098  109.3   26.3    73   12.4 
2025-12-29 00:00 UT   01 10 52.5   +26 26 51     1.564    2.096  108.5   26.4    73   12.4 
2025-12-30 00:00 UT   01 11 50.6   +26 18 29     1.572    2.093  107.7   26.6    72   12.4 
2025-12-31 00:00 UT   01 12 50.4   +26 10 20     1.580    2.090  106.9   26.7    72   12.4 
2026-01-01 00:00 UT   01 13 51.8   +26 02 26     1.588    2.088  106.1   26.9    72   12.4 
2026-01-02 00:00 UT   01 14 54.9   +25 54 45     1.597    2.085  105.3   27.1    72   12.4 
2026-01-03 00:00 UT   01 15 59.6   +25 47 18     1.605    2.082  104.6   27.2    71   12.4 
2026-01-04 00:00 UT   01 17 05.8   +25 40 04     1.613    2.080  103.8   27.3    71   12.5 
2026-01-05 00:00 UT   01 18 13.6   +25 33 04     1.622    2.077  103.0   27.5    71   12.5 
2026-01-06 00:00 UT   01 19 22.9   +25 26 17     1.630    2.074  102.2   27.6    71   12.5 
2026-01-07 00:00 UT   01 20 33.7   +25 19 43     1.638    2.072  101.5   27.7    70   12.5 
2026-01-08 00:00 UT   01 21 45.9   +25 13 22     1.647    2.069  100.7   27.8    70   12.5 
2026-01-09 00:00 UT   01 22 59.6   +25 07 14     1.655    2.066  100.0   28.0    70   12.5 
2026-01-10 00:00 UT   01 24 14.7   +25 01 19     1.664    2.064   99.2   28.1    70   12.5 
2026-01-11 00:00 UT   01 25 31.2   +24 55 37     1.672    2.061   98.5   28.2    70   12.5 
2026-01-12 00:00 UT   01 26 49.1   +24 50 07     1.681    2.058   97.7   28.3    70   12.5 
2026-01-13 00:00 UT   01 28 08.4   +24 44 49     1.690    2.056   97.0   28.4    69   12.6 
2026-01-14 00:00 UT   01 29 29.0   +24 39 43     1.698    2.053   96.3   28.4    69   12.6 
2026-01-15 00:00 UT   01 30 50.9   +24 34 50     1.707    2.051   95.5   28.5    69   12.6 
2026-01-16 00:00 UT   01 32 14.2   +24 30 08     1.716    2.048   94.8   28.6    69   12.6 
2026-01-17 00:00 UT   01 33 38.7   +24 25 38     1.725    2.045   94.1   28.7    69   12.6 
2026-01-18 00:00 UT   01 35 04.4   +24 21 19     1.733    2.043   93.4   28.7    69   12.6 
2026-01-19 00:00 UT   01 36 31.5   +24 17 11     1.742    2.040   92.7   28.8    69   12.6 

    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.