(364) Isara
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	12 May 2026	13.5	2.550 AU	1.584 AU	16h45m	-15°48'	158.1°	8.5°
Opposition	28 May 2026	13.1	2.546 AU	1.537 AU	16h28m	-15°31'	173.8°	2.5°

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)      : 312.97935
            M (Mean anomaly)                : 135.53601
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 58.63859
            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
2026-05-12 00:00 UT   16 45 02.4   -15 48 27     1.584    2.550  158.1    8.5   261   13.5 
2026-05-12 12:44 UT   16 44 33.6   -15 47 48     1.582    2.550  158.7    8.3   261   13.5 
2026-05-13 00:00 UT   16 44 07.9   -15 47 15     1.580    2.550  159.3    8.1   260   13.5 
2026-05-14 00:00 UT   16 43 12.1   -15 46 03     1.575    2.549  160.4    7.6   259   13.5 
2026-05-15 00:00 UT   16 42 15.2   -15 44 53     1.570    2.549  161.5    7.2   258   13.5 
2026-05-16 00:00 UT   16 41 17.3   -15 43 44     1.566    2.549  162.6    6.8   257   13.4 
2026-05-17 00:00 UT   16 40 18.3   -15 42 36     1.562    2.549  163.7    6.4   255   13.4 
2026-05-18 00:00 UT   16 39 18.4   -15 41 29     1.559    2.549  164.9    6.0   254   13.4 
2026-05-19 00:00 UT   16 38 17.6   -15 40 24     1.555    2.549  165.9    5.5   252   13.3 
2026-05-20 00:00 UT   16 37 16.0   -15 39 20     1.552    2.548  167.0    5.1   249   13.3 
2026-05-21 00:00 UT   16 36 13.6   -15 38 18     1.549    2.548  168.1    4.7   247   13.3 
2026-05-22 00:00 UT   16 35 10.6   -15 37 17     1.547    2.548  169.1    4.3   243   13.3 
2026-05-23 00:00 UT   16 34 06.9   -15 36 18     1.544    2.548  170.1    3.9   239   13.2 
2026-05-24 00:00 UT   16 33 02.8   -15 35 21     1.542    2.547  171.0    3.6   235   13.2 
2026-05-25 00:00 UT   16 31 58.1   -15 34 27     1.541    2.547  171.8    3.2   229   13.2 
2026-05-26 00:00 UT   16 30 53.2   -15 33 34     1.539    2.547  172.6    2.9   222   13.2 
2026-05-27 00:00 UT   16 29 47.8   -15 32 43     1.538    2.547  173.2    2.7   213   13.2 
2026-05-28 00:00 UT   16 28 42.3   -15 31 55     1.537    2.546  173.6    2.5   203   13.1 
2026-05-29 00:00 UT   16 27 36.6   -15 31 09     1.536    2.546  173.8    2.4   192   13.1 
2026-05-30 00:00 UT   16 26 30.8   -15 30 26     1.536    2.546  173.8    2.5   181   13.1 
2026-05-31 00:00 UT   16 25 25.0   -15 29 45     1.536    2.546  173.6    2.6   170   13.1 
2026-06-01 00:00 UT   16 24 19.2   -15 29 07     1.536    2.545  173.1    2.7   161   13.2 
2026-06-02 00:00 UT   16 23 13.6   -15 28 32     1.536    2.545  172.5    3.0   152   13.2 
2026-06-03 00:00 UT   16 22 08.2   -15 27 60     1.537    2.545  171.7    3.3   146   13.2 
2026-06-04 00:00 UT   16 21 03.0   -15 27 31     1.538    2.544  170.8    3.6   140   13.2 
2026-06-05 00:00 UT   16 19 58.2   -15 27 05     1.539    2.544  169.9    4.0   135   13.2 
2026-06-06 00:00 UT   16 18 53.8   -15 26 43     1.541    2.544  168.9    4.4   132   13.3 
2026-06-07 00:00 UT   16 17 49.9   -15 26 23     1.542    2.543  167.9    4.8   128   13.3 
2026-06-08 00:00 UT   16 16 46.5   -15 26 08     1.544    2.543  166.9    5.2   126   13.3 
2026-06-09 00:00 UT   16 15 43.8   -15 25 56     1.547    2.543  165.8    5.6   124   13.3 
2026-06-10 00:00 UT   16 14 41.7   -15 25 48     1.549    2.542  164.7    6.1   122   13.4 
2026-06-11 00:00 UT   16 13 40.4   -15 25 44     1.552    2.542  163.6    6.5   120   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.