(364) Isara
ephemeris date magn radius delta ra dec elong phase
Today16 Nov 202515.12.472 AU3.361 AU14h05m-08°01'22.0°8.6°
Opposition28 May 202613.22.546 AU1.537 AU16h28m-15°31'173.8°2.5°
(364) Isara - 2025-11-16
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)              : 2.2202422
            i (Inclination)                 : 6.00618
            Ω (Longitude of ascending node) : 105.50189
            ω (Argument of perihelion)      : 312.97938
            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
2025-11-16 00:00 UT   14 05 00.8   -08 01 31     3.361    2.472   22.0    8.6   301   15.1 
2025-11-16 06:11 UT   14 05 27.0   -08 03 48     3.360    2.473   22.2    8.7   301   15.1 
2025-11-17 00:00 UT   14 06 42.4   -08 10 19     3.357    2.473   22.6    8.8   300   15.1 
2025-11-18 00:00 UT   14 08 24.0   -08 19 04     3.353    2.474   23.1    9.0   300   15.1 
2025-11-19 00:00 UT   14 10 05.6   -08 27 45     3.348    2.475   23.7    9.2   300   15.1 
2025-11-20 00:00 UT   14 11 47.0   -08 36 23     3.344    2.476   24.3    9.4   299   15.1 
2025-11-21 00:00 UT   14 13 28.4   -08 44 56     3.339    2.477   24.8    9.6   299   15.1 
2025-11-22 00:00 UT   14 15 09.7   -08 53 26     3.334    2.478   25.4    9.8   299   15.1 
2025-11-23 00:00 UT   14 16 50.9   -09 01 52     3.330    2.479   25.9   10.0   298   15.2 
2025-11-24 00:00 UT   14 18 32.1   -09 10 14     3.325    2.480   26.5   10.2   298   15.2 
2025-11-25 00:00 UT   14 20 13.2   -09 18 31     3.319    2.481   27.1   10.4   298   15.2 
2025-11-26 00:00 UT   14 21 54.1   -09 26 45     3.314    2.482   27.6   10.6   297   15.2 
2025-11-27 00:00 UT   14 23 35.0   -09 34 55     3.309    2.483   28.2   10.8   297   15.2 
2025-11-28 00:00 UT   14 25 15.8   -09 43 01     3.303    2.484   28.8   11.0   297   15.2 
2025-11-29 00:00 UT   14 26 56.5   -09 51 03     3.298    2.485   29.3   11.2   297   15.2 
2025-11-30 00:00 UT   14 28 37.1   -09 59 00     3.292    2.486   29.9   11.4   296   15.2 
2025-12-01 00:00 UT   14 30 17.6   -10 06 54     3.286    2.487   30.5   11.6   296   15.2 
2025-12-02 00:00 UT   14 31 57.9   -10 14 43     3.280    2.488   31.1   11.8   296   15.2 
2025-12-03 00:00 UT   14 33 38.2   -10 22 28     3.274    2.489   31.6   12.0   295   15.2 
2025-12-04 00:00 UT   14 35 18.3   -10 30 09     3.268    2.490   32.2   12.2   295   15.2 
2025-12-05 00:00 UT   14 36 58.3   -10 37 45     3.261    2.490   32.8   12.4   295   15.2 


    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.