(654) Zelinda
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	25 Apr 2024	13.8	2.701 AU	2.459 AU	20h16m	-18°58'	92.8°	21.8°
Opposition	17 Jul 2024	12.5	2.794 AU	1.785 AU	19h45m	-12°24'	171.3°	3.2°

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)                : 0.2311368
            a (Semimajor axis)              : 2.2974142
            i (Inclination)                 : 18.09585
            Ω (Longitude of ascending node) : 278.32383
            ω (Argument of perihelion)      : 214.57214
            M (Mean anomaly)                : 123.87809
            Epoch                           : 2024 Mar 31

            L (Longitude of perihelion)     : 311.55065
            B (Latitude of perihelion)      : -10.15154
            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
2024-04-25 00:00 UT   20 16 59.9   -18 58 54     2.459    2.701   92.8   21.8   257   13.8 
2024-04-25 17:01 UT   20 17 26.1   -18 54 20     2.450    2.703   93.4   21.8   257   13.8 
2024-04-26 00:00 UT   20 17 36.7   -18 52 27     2.446    2.703   93.6   21.8   257   13.8 
2024-04-27 00:00 UT   20 18 12.2   -18 46 01     2.434    2.704   94.4   21.8   257   13.8 
2024-04-28 00:00 UT   20 18 46.4   -18 39 36     2.421    2.706   95.2   21.7   257   13.8 
2024-04-29 00:00 UT   20 19 19.3   -18 33 12     2.409    2.707   96.0   21.7   257   13.8 
2024-04-30 00:00 UT   20 19 50.9   -18 26 49     2.397    2.709   96.9   21.7   257   13.8 
2024-05-01 00:00 UT   20 20 21.1   -18 20 27     2.384    2.710   97.7   21.6   257   13.8 
2024-05-02 00:00 UT   20 20 50.0   -18 14 06     2.372    2.711   98.5   21.6   257   13.7 
2024-05-03 00:00 UT   20 21 17.6   -18 07 46     2.360    2.713   99.4   21.5   256   13.7 
2024-05-04 00:00 UT   20 21 43.7   -18 01 28     2.347    2.714  100.2   21.4   256   13.7 
2024-05-05 00:00 UT   20 22 08.5   -17 55 12     2.335    2.716  101.1   21.4   256   13.7 
2024-05-06 00:00 UT   20 22 31.8   -17 48 57     2.323    2.717  101.9   21.3   256   13.7 
2024-05-07 00:00 UT   20 22 53.7   -17 42 43     2.311    2.718  102.8   21.2   256   13.7 
2024-05-08 00:00 UT   20 23 14.2   -17 36 32     2.298    2.720  103.6   21.1   256   13.7 
2024-05-09 00:00 UT   20 23 33.2   -17 30 22     2.286    2.721  104.5   21.0   256   13.7 
2024-05-10 00:00 UT   20 23 50.7   -17 24 14     2.274    2.722  105.4   21.0   256   13.6 
2024-05-11 00:00 UT   20 24 06.8   -17 18 07     2.262    2.724  106.3   20.9   256   13.6 
2024-05-12 00:00 UT   20 24 21.3   -17 12 03     2.250    2.725  107.2   20.7   256   13.6 
2024-05-13 00:00 UT   20 24 34.4   -17 06 01     2.238    2.726  108.0   20.6   256   13.6 
2024-05-14 00:00 UT   20 24 45.9   -17 00 01     2.227    2.728  108.9   20.5   256   13.6 
2024-05-15 00:00 UT   20 24 56.0   -16 54 03     2.215    2.729  109.8   20.4   256   13.6 
2024-05-16 00:00 UT   20 25 04.4   -16 48 07     2.203    2.730  110.7   20.3   255   13.6 
2024-05-17 00:00 UT   20 25 11.4   -16 42 14     2.191    2.731  111.7   20.1   255   13.5 
2024-05-18 00:00 UT   20 25 16.8   -16 36 22     2.180    2.733  112.6   20.0   255   13.5 
2024-05-19 00:00 UT   20 25 20.6   -16 30 34     2.168    2.734  113.5   19.8   255   13.5 
2024-05-20 00:00 UT   20 25 22.9   -16 24 47     2.157    2.735  114.4   19.7   255   13.5 
2024-05-21 00:00 UT   20 25 23.5   -16 19 03     2.146    2.736  115.4   19.5   255   13.5 
2024-05-22 00:00 UT   20 25 22.6   -16 13 22     2.134    2.738  116.3   19.4   255   13.5 
2024-05-23 00:00 UT   20 25 20.1   -16 07 43     2.123    2.739  117.2   19.2   255   13.4 
2024-05-24 00:00 UT   20 25 16.0   -16 02 07     2.112    2.740  118.2   19.0   255   13.4 
2024-05-25 00:00 UT   20 25 10.3   -15 56 33     2.101    2.741  119.1   18.8   255   13.4 

    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.