(89) Julia
ephemeris date magn radius delta ra dec elong phase
Today21 Dec 202411.62.577 AU3.516 AU17h05m-32°52'14.8°5.6°
Opposition10 Aug 20258.52.153 AU1.141 AU21h20m-11°38'176.1°1.8°
(89) Julia - 2024-12-21
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)                : 0.1839995
            a (Semimajor axis)              : 2.5513371
            i (Inclination)                 : 16.12156
            Ω (Longitude of ascending node) : 311.52550
            ω (Argument of perihelion)      : 45.16597
            M (Mean anomaly)                : 261.66236
            Epoch                           : 2024 Oct 17

            L (Longitude of perihelion)     : 355.54233
            B (Latitude of perihelion)      : 11.35659
            P (Orbital period in years)     : 4.08            
        

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
2024-12-21 00:00 UT   17 05 03.8   -32 52 41     3.516    2.577   14.8    5.6   234   11.6 
2024-12-21 14:55 UT   17 06 23.7   -32 53 32     3.513    2.576   15.0    5.7   234   11.6 
2024-12-22 00:00 UT   17 07 12.3   -32 54 02     3.512    2.575   15.2    5.7   235   11.6 
2024-12-23 00:00 UT   17 09 21.0   -32 55 17     3.507    2.573   15.6    5.9   236   11.6 
2024-12-24 00:00 UT   17 11 29.7   -32 56 26     3.502    2.571   16.0    6.1   237   11.6 
2024-12-25 00:00 UT   17 13 38.6   -32 57 30     3.497    2.569   16.4    6.2   238   11.6 
2024-12-26 00:00 UT   17 15 47.6   -32 58 28     3.492    2.567   16.9    6.4   239   11.6 
2024-12-27 00:00 UT   17 17 56.6   -32 59 21     3.487    2.565   17.3    6.6   240   11.6 
2024-12-28 00:00 UT   17 20 05.7   -33 00 08     3.482    2.563   17.8    6.7   241   11.6 
2024-12-29 00:00 UT   17 22 14.9   -33 00 50     3.477    2.561   18.2    6.9   242   11.6 
2024-12-30 00:00 UT   17 24 24.1   -33 01 25     3.471    2.559   18.7    7.1   243   11.6 
2024-12-31 00:00 UT   17 26 33.4   -33 01 56     3.466    2.557   19.2    7.3   244   11.6 
2025-01-01 00:00 UT   17 28 42.7   -33 02 20     3.460    2.555   19.6    7.4   244   11.6 
2025-01-02 00:00 UT   17 30 52.1   -33 02 39     3.454    2.553   20.1    7.6   245   11.6 
2025-01-03 00:00 UT   17 33 01.4   -33 02 51     3.448    2.551   20.6    7.8   246   11.6 
2025-01-04 00:00 UT   17 35 10.8   -33 02 59     3.442    2.549   21.1    8.0   246   11.6 
2025-01-05 00:00 UT   17 37 20.2   -33 02 60     3.436    2.547   21.6    8.2   247   11.7 
2025-01-06 00:00 UT   17 39 29.6   -33 02 55     3.430    2.546   22.1    8.3   247   11.7 
2025-01-07 00:00 UT   17 41 38.9   -33 02 45     3.423    2.544   22.6    8.5   248   11.7 
2025-01-08 00:00 UT   17 43 48.3   -33 02 28     3.417    2.542   23.1    8.7   248   11.7 


    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.