(654) Zelinda
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	15 Oct 2025	11.9	2.297 AU	1.392 AU	01h34m	+40°44'	147.5°	13.5°
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)                : 0.2315731
            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. 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
2025-10-15 00:00 UT   01 34 41.7   +40 44 27     1.392    2.297  147.5   13.5   187   11.9 
2025-10-15 12:44 UT   01 34 04.8   +40 42 20     1.389    2.295  147.8   13.4   186   11.9 
2025-10-16 00:00 UT   01 33 32.1   +40 40 22     1.387    2.294  148.0   13.3   185   11.9 
2025-10-17 00:00 UT   01 32 22.0   +40 35 50     1.382    2.291  148.5   13.1   183   11.9 
2025-10-18 00:00 UT   01 31 11.4   +40 30 52     1.377    2.289  149.0   13.0   180   11.9 
2025-10-19 00:00 UT   01 30 00.5   +40 25 27     1.372    2.286  149.4   12.8   178   11.8 
2025-10-20 00:00 UT   01 28 49.3   +40 19 37     1.367    2.284  149.8   12.7   175   11.8 
2025-10-21 00:00 UT   01 27 38.1   +40 13 21     1.363    2.281  150.2   12.5   173   11.8 
2025-10-22 00:00 UT   01 26 26.8   +40 06 39     1.359    2.278  150.5   12.4   170   11.8 
2025-10-23 00:00 UT   01 25 15.7   +39 59 31     1.355    2.276  150.8   12.3   168   11.8 
2025-10-24 00:00 UT   01 24 04.8   +39 51 59     1.351    2.273  151.0   12.2   165   11.8 
2025-10-25 00:00 UT   01 22 54.3   +39 44 01     1.348    2.270  151.2   12.2   162   11.8 
2025-10-26 00:00 UT   01 21 44.2   +39 35 40     1.344    2.268  151.4   12.1   160   11.7 
2025-10-27 00:00 UT   01 20 34.7   +39 26 54     1.341    2.265  151.5   12.1   157   11.7 
2025-10-28 00:00 UT   01 19 26.0   +39 17 46     1.339    2.262  151.5   12.1   154   11.7 
2025-10-29 00:00 UT   01 18 18.0   +39 08 14     1.336    2.260  151.5   12.1   151   11.7 
2025-10-30 00:00 UT   01 17 11.0   +38 58 21     1.334    2.257  151.5   12.1   149   11.7 
2025-10-31 00:00 UT   01 16 05.0   +38 48 06     1.332    2.254  151.4   12.2   146   11.7 
2025-11-01 00:00 UT   01 15 00.1   +38 37 30     1.330    2.252  151.3   12.2   143   11.7 
2025-11-02 00:00 UT   01 13 56.4   +38 26 34     1.328    2.249  151.1   12.3   140   11.7 
2025-11-03 00:00 UT   01 12 54.1   +38 15 19     1.327    2.246  150.9   12.4   138   11.7 
2025-11-04 00:00 UT   01 11 53.1   +38 03 46     1.326    2.244  150.6   12.5   135   11.7 
2025-11-05 00:00 UT   01 10 53.7   +37 51 55     1.325    2.241  150.3   12.7   133   11.7 
2025-11-06 00:00 UT   01 09 55.8   +37 39 47     1.325    2.238  149.9   12.8   130   11.7 
2025-11-07 00:00 UT   01 08 59.6   +37 27 23     1.324    2.236  149.5   13.0   128   11.7 
2025-11-08 00:00 UT   01 08 05.1   +37 14 43     1.324    2.233  149.1   13.2   125   11.7 
2025-11-09 00:00 UT   01 07 12.3   +37 01 50     1.324    2.230  148.6   13.4   123   11.7 
2025-11-10 00:00 UT   01 06 21.5   +36 48 43     1.324    2.227  148.1   13.6   121   11.7 
2025-11-11 00:00 UT   01 05 32.5   +36 35 24     1.325    2.225  147.5   13.8   118   11.7 
2025-11-12 00:00 UT   01 04 45.5   +36 21 53     1.326    2.222  147.0   14.1   116   11.7 
2025-11-13 00:00 UT   01 04 00.6   +36 08 12     1.327    2.219  146.3   14.3   114   11.8 
2025-11-14 00:00 UT   01 03 17.8   +35 54 21     1.328    2.217  145.7   14.6   112   11.8 

    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.