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(364) Isara
ephemeris date magn radius delta ra dec elong phase
Today28 Feb 202614.92.543 AU2.366 AU16h38m-16°34'88.6°22.9°
Opposition28 May 202613.12.546 AU1.537 AU16h28m-15°31'173.8°2.5°
(364) Isara - 2026-02-28
astro.vanbuitenen.nl


 
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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 Isara are:

            e (Eccentricity)                : 0.1492100
            a (Semimajor axis)              : 2.2202423
            i (Inclination)                 : 6.00618
            Ω (Longitude of ascending node) : 105.50191
            ω (Argument of perihelion)      : 312.97936
            M (Mean anomaly)                : 135.53601
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 58.63860
            B (Latitude of perihelion)      : -4.39037
            P (Orbital period in years)     : 3.31            
        

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
2026-02-28 00:00 UT   16 38 26.6   -16 34 24     2.366    2.543   88.6   22.9   278   14.9 
2026-02-28 18:00 UT   16 39 10.2   -16 35 03     2.356    2.543   89.2   22.9   278   14.9 
2026-03-01 00:00 UT   16 39 24.6   -16 35 16     2.353    2.543   89.4   22.9   278   14.9 
2026-03-02 00:00 UT   16 40 21.7   -16 36 03     2.339    2.544   90.2   22.9   278   14.9 
2026-03-03 00:00 UT   16 41 17.6   -16 36 48     2.326    2.544   91.0   22.9   278   14.9 
2026-03-04 00:00 UT   16 42 12.5   -16 37 28     2.313    2.544   91.7   22.9   277   14.8 
2026-03-05 00:00 UT   16 43 06.2   -16 38 04     2.300    2.545   92.5   22.9   277   14.8 
2026-03-06 00:00 UT   16 43 58.8   -16 38 37     2.287    2.545   93.3   22.9   277   14.8 
2026-03-07 00:00 UT   16 44 50.3   -16 39 07     2.274    2.545   94.1   22.9   277   14.8 
2026-03-08 00:00 UT   16 45 40.6   -16 39 32     2.261    2.545   94.9   22.9   277   14.8 
2026-03-09 00:00 UT   16 46 29.7   -16 39 55     2.248    2.546   95.7   22.8   277   14.8 
2026-03-10 00:00 UT   16 47 17.6   -16 40 13     2.235    2.546   96.5   22.8   277   14.8 
2026-03-11 00:00 UT   16 48 04.3   -16 40 28     2.222    2.546   97.3   22.8   276   14.8 
2026-03-12 00:00 UT   16 48 49.7   -16 40 40     2.209    2.547   98.1   22.7   276   14.7 
2026-03-13 00:00 UT   16 49 33.8   -16 40 49     2.196    2.547   98.9   22.7   276   14.7 
2026-03-14 00:00 UT   16 50 16.6   -16 40 54     2.183    2.547   99.8   22.6   276   14.7 
2026-03-15 00:00 UT   16 50 58.1   -16 40 56     2.170    2.547  100.6   22.6   276   14.7 
2026-03-16 00:00 UT   16 51 38.3   -16 40 55     2.157    2.548  101.4   22.5   276   14.7 
2026-03-17 00:00 UT   16 52 17.1   -16 40 51     2.144    2.548  102.3   22.4   275   14.7 
2026-03-18 00:00 UT   16 52 54.6   -16 40 44     2.131    2.548  103.1   22.4   275   14.7 
2026-03-19 00:00 UT   16 53 30.6   -16 40 34     2.118    2.548  103.9   22.3   275   14.6 
2026-03-20 00:00 UT   16 54 05.2   -16 40 21     2.105    2.548  104.8   22.2   275   14.6 
2026-03-21 00:00 UT   16 54 38.3   -16 40 05     2.093    2.549  105.7   22.1   275   14.6 
2026-03-22 00:00 UT   16 55 10.0   -16 39 46     2.080    2.549  106.5   22.0   275   14.6 
2026-03-23 00:00 UT   16 55 40.2   -16 39 25     2.067    2.549  107.4   21.9   274   14.6 
2026-03-24 00:00 UT   16 56 08.9   -16 39 01     2.055    2.549  108.3   21.8   274   14.6 
2026-03-25 00:00 UT   16 56 36.1   -16 38 35     2.042    2.549  109.1   21.7   274   14.5 
2026-03-26 00:00 UT   16 57 01.8   -16 38 06     2.030    2.550  110.0   21.6   274   14.5 
2026-03-27 00:00 UT   16 57 25.9   -16 37 35     2.017    2.550  110.9   21.4   274   14.5 
2026-03-28 00:00 UT   16 57 48.5   -16 37 01     2.005    2.550  111.8   21.3   274   14.5 
2026-03-29 00:00 UT   16 58 09.5   -16 36 25     1.993    2.550  112.7   21.2   274   14.5 
2026-03-30 00:00 UT   16 58 28.8   -16 35 47     1.980    2.550  113.6   21.0   273   14.5 


    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.