(364) Isara
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Opposition	14 Jan 2025	11.7	2.005 AU	1.022 AU	07h50m	+22°56'	177.7°	1.1°
Today	22 Jan 2025	11.9	2.016 AU	1.038 AU	07h42m	+23°49'	171.2°	4.3°

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)                : 0.1494484
            a (Semimajor axis)              : 2.2209160
            i (Inclination)                 : 6.00557
            Ω (Longitude of ascending node) : 105.50257
            ω (Argument of perihelion)      : 313.08656
            M (Mean anomaly)                : 16.26583
            Epoch                           : 2024 Oct 17

            L (Longitude of perihelion)     : 58.74647
            B (Latitude of perihelion)      : -4.38225
            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. 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
2025-01-22 00:00 UT   07 42 42.7   +23 49 02     1.038    2.016  171.2    4.3   116   11.9 
2025-01-22 05:14 UT   07 42 28.6   +23 50 28     1.039    2.016  170.9    4.4   115   11.9 
2025-01-23 00:00 UT   07 41 38.7   +23 55 33     1.041    2.018  169.9    4.9   114   12.0 
2025-01-24 00:00 UT   07 40 35.7   +24 01 55     1.045    2.019  168.7    5.5   113   12.0 
2025-01-25 00:00 UT   07 39 33.6   +24 08 10     1.048    2.021  167.4    6.1   112   12.0 
2025-01-26 00:00 UT   07 38 32.7   +24 14 16     1.052    2.022  166.2    6.7   111   12.1 
2025-01-27 00:00 UT   07 37 33.0   +24 20 13     1.056    2.024  164.9    7.3   110   12.1 
2025-01-28 00:00 UT   07 36 34.7   +24 26 01     1.061    2.025  163.7    7.8   109   12.1 
2025-01-29 00:00 UT   07 35 37.8   +24 31 40     1.066    2.027  162.5    8.4   108   12.2 
2025-01-30 00:00 UT   07 34 42.4   +24 37 10     1.071    2.028  161.2    9.0   108   12.2 
2025-01-31 00:00 UT   07 33 48.6   +24 42 31     1.076    2.030  160.0    9.6   107   12.3 
2025-02-01 00:00 UT   07 32 56.5   +24 47 42     1.081    2.031  158.8   10.1   107   12.3 
2025-02-02 00:00 UT   07 32 06.2   +24 52 43     1.087    2.033  157.6   10.7   106   12.3 
2025-02-03 00:00 UT   07 31 17.8   +24 57 34     1.093    2.034  156.4   11.2   106   12.4 
2025-02-04 00:00 UT   07 30 31.3   +25 02 16     1.099    2.036  155.2   11.7   106   12.4 
2025-02-05 00:00 UT   07 29 46.7   +25 06 48     1.105    2.038  154.0   12.3   105   12.4 
2025-02-06 00:00 UT   07 29 04.2   +25 11 10     1.112    2.039  152.8   12.8   105   12.5 
2025-02-07 00:00 UT   07 28 23.8   +25 15 22     1.118    2.041  151.6   13.3   105   12.5 
2025-02-08 00:00 UT   07 27 45.6   +25 19 24     1.125    2.042  150.5   13.8   105   12.5 
2025-02-09 00:00 UT   07 27 09.5   +25 23 17     1.132    2.044  149.3   14.3   104   12.6 
2025-02-10 00:00 UT   07 26 35.6   +25 27 00     1.140    2.045  148.2   14.7   104   12.6 
2025-02-11 00:00 UT   07 26 04.0   +25 30 34     1.147    2.047  147.0   15.2   104   12.6 
2025-02-12 00:00 UT   07 25 34.6   +25 33 58     1.155    2.049  145.9   15.7   104   12.7 
2025-02-13 00:00 UT   07 25 07.5   +25 37 12     1.163    2.050  144.8   16.1   103   12.7 
2025-02-14 00:00 UT   07 24 42.7   +25 40 18     1.171    2.052  143.7   16.6   103   12.7 
2025-02-15 00:00 UT   07 24 20.3   +25 43 14     1.179    2.053  142.6   17.0   103   12.8 
2025-02-16 00:00 UT   07 24 00.1   +25 46 01     1.188    2.055  141.5   17.4   103   12.8 
2025-02-17 00:00 UT   07 23 42.3   +25 48 39     1.196    2.057  140.4   17.8   103   12.8 
2025-02-18 00:00 UT   07 23 26.9   +25 51 09     1.205    2.058  139.4   18.2   103   12.8 
2025-02-19 00:00 UT   07 23 13.8   +25 53 30     1.214    2.060  138.3   18.6   102   12.9 
2025-02-20 00:00 UT   07 23 03.0   +25 55 42     1.223    2.062  137.3   19.0   102   12.9 
2025-02-21 00:00 UT   07 22 54.7   +25 57 45     1.232    2.063  136.2   19.4   102   12.9 

    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.