(89) Julia
ephemeris date magn radius delta ra dec elong phase
Opposition10 Apr 202410.82.956 AU2.006 AU12h42m-29°22'157.3°7.5°
Today19 Apr 202410.82.948 AU2.006 AU12h34m-28°41'155.4°8.2°
(89) Julia - 2024-04-19
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 Julia are:

            e (Eccentricity)                : 0.1841269
            a (Semimajor axis)              : 2.5511723
            i (Inclination)                 : 16.12175
            Ω (Longitude of ascending node) : 311.53483
            ω (Argument of perihelion)      : 45.15746
            M (Mean anomaly)                : 213.30075
            Epoch                           : 2024 Mar 31

            L (Longitude of perihelion)     : 355.54313
            B (Latitude of perihelion)      : 11.35503
            P (Orbital period in years)     : 4.07            
        

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
2024-04-19 00:00 UT   12 34 13.1   -28 41 37     2.006    2.948  155.4    8.2    48   10.8 
2024-04-19 07:25 UT   12 33 55.8   -28 39 53     2.006    2.948  155.2    8.2    49   10.8 
2024-04-20 00:00 UT   12 33 17.3   -28 35 59     2.007    2.947  154.9    8.3    51   10.8 
2024-04-21 00:00 UT   12 32 22.4   -28 30 13     2.008    2.947  154.4    8.5    54   10.8 
2024-04-22 00:00 UT   12 31 28.4   -28 24 19     2.010    2.946  153.8    8.6    56   10.8 
2024-04-23 00:00 UT   12 30 35.4   -28 18 17     2.012    2.945  153.3    8.8    59   10.8 
2024-04-24 00:00 UT   12 29 43.5   -28 12 08     2.014    2.944  152.6    9.0    61   10.8 
2024-04-25 00:00 UT   12 28 52.7   -28 05 52     2.016    2.943  152.0    9.2    63   10.9 
2024-04-26 00:00 UT   12 28 02.9   -27 59 30     2.019    2.942  151.3    9.4    65   10.9 
2024-04-27 00:00 UT   12 27 14.4   -27 53 02     2.022    2.941  150.6    9.7    67   10.9 
2024-04-28 00:00 UT   12 26 27.1   -27 46 29     2.025    2.940  149.9    9.9    69   10.9 
2024-04-29 00:00 UT   12 25 41.0   -27 39 50     2.029    2.939  149.1   10.1    71   10.9 
2024-04-30 00:00 UT   12 24 56.2   -27 33 08     2.033    2.938  148.4   10.4    73   10.9 
2024-05-01 00:00 UT   12 24 12.7   -27 26 21     2.036    2.937  147.6   10.6    74   10.9 
2024-05-02 00:00 UT   12 23 30.5   -27 19 32     2.041    2.936  146.8   10.8    76   10.9 
2024-05-03 00:00 UT   12 22 49.7   -27 12 39     2.045    2.935  146.0   11.1    77   11.0 
2024-05-04 00:00 UT   12 22 10.4   -27 05 43     2.050    2.934  145.1   11.3    79   11.0 
2024-05-05 00:00 UT   12 21 32.4   -26 58 46     2.054    2.933  144.3   11.6    80   11.0 
2024-05-06 00:00 UT   12 20 56.0   -26 51 48     2.060    2.932  143.4   11.8    81   11.0 
2024-05-07 00:00 UT   12 20 21.0   -26 44 48     2.065    2.931  142.6   12.1    83   11.0 
2024-05-08 00:00 UT   12 19 47.5   -26 37 48     2.070    2.930  141.7   12.3    84   11.0 
2024-05-09 00:00 UT   12 19 15.6   -26 30 48     2.076    2.929  140.8   12.6    85   11.0 
2024-05-10 00:00 UT   12 18 45.1   -26 23 48     2.082    2.928  139.9   12.8    86   11.1 
2024-05-11 00:00 UT   12 18 16.3   -26 16 49     2.088    2.927  139.0   13.1    87   11.1 
2024-05-12 00:00 UT   12 17 49.0   -26 09 52     2.095    2.926  138.2   13.3    88   11.1 
2024-05-13 00:00 UT   12 17 23.3   -26 02 56     2.101    2.925  137.3   13.6    89   11.1 
2024-05-14 00:00 UT   12 16 59.3   -25 56 03     2.108    2.924  136.4   13.8    90   11.1 
2024-05-15 00:00 UT   12 16 36.7   -25 49 12     2.115    2.923  135.5   14.0    91   11.1 
2024-05-16 00:00 UT   12 16 15.8   -25 42 25     2.122    2.922  134.6   14.3    92   11.1 
2024-05-17 00:00 UT   12 15 56.5   -25 35 40     2.129    2.921  133.7   14.5    93   11.2 
2024-05-18 00:00 UT   12 15 38.8   -25 28 60     2.137    2.919  132.8   14.7    94   11.2 
2024-05-19 00:00 UT   12 15 22.7   -25 22 23     2.144    2.918  131.9   15.0    94   11.2 


    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.