(654) Zelinda
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	9 May 2025	14.2	2.650 AU	3.288 AU	00h01m	+15°19'	43.6°	15.2°
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
2025-05-09 00:00 UT   00 01 23.6   +15 19 34     3.288    2.650   43.6   15.2   261   14.2 
2025-05-09 11:09 UT   00 02 02.7   +15 25 19     3.284    2.649   43.8   15.3   261   14.2 
2025-05-10 00:00 UT   00 02 47.7   +15 31 56     3.278    2.648   44.1   15.4   261   14.2 
2025-05-11 00:00 UT   00 04 11.7   +15 44 19     3.268    2.647   44.7   15.6   260   14.1 
2025-05-12 00:00 UT   00 05 35.5   +15 56 42     3.258    2.645   45.2   15.7   260   14.1 
2025-05-13 00:00 UT   00 06 59.2   +16 09 06     3.247    2.643   45.8   15.9   260   14.1 
2025-05-14 00:00 UT   00 08 22.8   +16 21 31     3.237    2.642   46.3   16.1   260   14.1 
2025-05-15 00:00 UT   00 09 46.2   +16 33 56     3.226    2.640   46.8   16.2   260   14.1 
2025-05-16 00:00 UT   00 11 09.5   +16 46 21     3.216    2.638   47.4   16.4   259   14.1 
2025-05-17 00:00 UT   00 12 32.7   +16 58 48     3.205    2.636   47.9   16.5   259   14.1 
2025-05-18 00:00 UT   00 13 55.7   +17 11 14     3.194    2.635   48.5   16.7   259   14.1 
2025-05-19 00:00 UT   00 15 18.6   +17 23 41     3.183    2.633   49.0   16.9   259   14.1 
2025-05-20 00:00 UT   00 16 41.3   +17 36 09     3.172    2.631   49.6   17.0   259   14.1 
2025-05-21 00:00 UT   00 18 03.8   +17 48 37     3.161    2.629   50.1   17.2   258   14.1 
2025-05-22 00:00 UT   00 19 26.2   +18 01 06     3.150    2.627   50.7   17.3   258   14.1 
2025-05-23 00:00 UT   00 20 48.5   +18 13 34     3.139    2.626   51.2   17.5   258   14.1 
2025-05-24 00:00 UT   00 22 10.5   +18 26 03     3.127    2.624   51.8   17.6   258   14.1 
2025-05-25 00:00 UT   00 23 32.4   +18 38 33     3.116    2.622   52.3   17.8   258   14.1 
2025-05-26 00:00 UT   00 24 54.1   +18 51 02     3.104    2.620   52.9   17.9   257   14.1 
2025-05-27 00:00 UT   00 26 15.6   +19 03 32     3.093    2.618   53.4   18.1   257   14.1 
2025-05-28 00:00 UT   00 27 37.0   +19 16 02     3.081    2.617   54.0   18.2   257   14.1 
2025-05-29 00:00 UT   00 28 58.1   +19 28 32     3.069    2.615   54.5   18.4   257   14.1 
2025-05-30 00:00 UT   00 30 19.0   +19 41 03     3.058    2.613   55.1   18.5   257   14.1 

    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.