2018 RH73
ephemeris date magn radius delta ra dec elong phase
Today23 Jun 202412.53.355 AU3.652 AU01h33m+13°30'65.2°16.0°
Opposition21 Oct 202411.03.431 AU2.439 AU01h40m+15°56'174.8°1.5°
2018 RH73 - 2024-06-23
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 2018 RH73 are:

            e (Eccentricity)                : 0.1077209
            a (Semimajor axis)              : 3.1412981
            i (Inclination)                 : 3.82430
            Ω (Longitude of ascending node) : 282.99640
            ω (Argument of perihelion)      : 313.75150
            M (Mean anomaly)                : 38.72367
            Epoch                           : 2023 Feb 25

            L (Longitude of perihelion)     : 236.81170
            B (Latitude of perihelion)      : -2.76149
            P (Orbital period in years)     : 5.57            
        

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
2024-06-23 00:00 UT   01 33 18.9   +13 30 42     3.652    3.355   65.2   16.0   250   12.5 
2024-06-23 00:28 UT   01 33 20.0   +13 30 49     3.652    3.355   65.2   16.0   250   12.5 
2024-06-24 00:00 UT   01 34 13.9   +13 36 46     3.640    3.356   65.9   16.0   250   12.5 
2024-06-25 00:00 UT   01 35 08.3   +13 42 48     3.628    3.357   66.6   16.1   250   12.5 
2024-06-26 00:00 UT   01 36 02.2   +13 48 46     3.616    3.357   67.3   16.2   250   12.5 
2024-06-27 00:00 UT   01 36 55.6   +13 54 41     3.603    3.358   68.0   16.3   250   12.5 
2024-06-28 00:00 UT   01 37 48.5   +14 00 33     3.591    3.359   68.8   16.4   250   12.4 
2024-06-29 00:00 UT   01 38 40.8   +14 06 21     3.578    3.360   69.5   16.5   250   12.4 
2024-06-30 00:00 UT   01 39 32.5   +14 12 06     3.566    3.360   70.2   16.5   250   12.4 
2024-07-01 00:00 UT   01 40 23.7   +14 17 48     3.553    3.361   70.9   16.6   250   12.4 
2024-07-02 00:00 UT   01 41 14.3   +14 23 26     3.540    3.362   71.6   16.7   250   12.4 
2024-07-03 00:00 UT   01 42 04.3   +14 29 01     3.528    3.363   72.4   16.7   250   12.4 
2024-07-04 00:00 UT   01 42 53.7   +14 34 32     3.515    3.363   73.1   16.8   250   12.4 
2024-07-05 00:00 UT   01 43 42.4   +14 39 60     3.502    3.364   73.8   16.9   250   12.4 
2024-07-06 00:00 UT   01 44 30.6   +14 45 24     3.489    3.365   74.6   16.9   250   12.4 
2024-07-07 00:00 UT   01 45 18.1   +14 50 44     3.476    3.366   75.3   17.0   250   12.4 
2024-07-08 00:00 UT   01 46 04.9   +14 56 01     3.463    3.366   76.1   17.0   250   12.4 
2024-07-09 00:00 UT   01 46 51.1   +15 01 13     3.450    3.367   76.8   17.1   250   12.4 
2024-07-10 00:00 UT   01 47 36.6   +15 06 22     3.437    3.368   77.6   17.1   250   12.4 
2024-07-11 00:00 UT   01 48 21.5   +15 11 27     3.424    3.368   78.3   17.2   250   12.4 
2024-07-12 00:00 UT   01 49 05.6   +15 16 29     3.411    3.369   79.1   17.2   250   12.4 
2024-07-13 00:00 UT   01 49 49.0   +15 21 26     3.397    3.370   79.8   17.3   250   12.4 
2024-07-14 00:00 UT   01 50 31.8   +15 26 20     3.384    3.371   80.6   17.3   250   12.4 
2024-07-15 00:00 UT   01 51 13.8   +15 31 09     3.371    3.371   81.4   17.3   250   12.4 
2024-07-16 00:00 UT   01 51 55.1   +15 35 55     3.357    3.372   82.1   17.4   250   12.3 
2024-07-17 00:00 UT   01 52 35.6   +15 40 36     3.344    3.373   82.9   17.4   250   12.3 
2024-07-18 00:00 UT   01 53 15.4   +15 45 14     3.331    3.373   83.7   17.4   250   12.3 
2024-07-19 00:00 UT   01 53 54.4   +15 49 47     3.317    3.374   84.5   17.4   250   12.3 
2024-07-20 00:00 UT   01 54 32.6   +15 54 16     3.304    3.375   85.2   17.5   250   12.3 
2024-07-21 00:00 UT   01 55 10.1   +15 58 41     3.290    3.376   86.0   17.5   250   12.3 
2024-07-22 00:00 UT   01 55 46.7   +16 03 02     3.277    3.376   86.8   17.5   250   12.3 
2024-07-23 00:00 UT   01 56 22.6   +16 07 19     3.263    3.377   87.6   17.5   250   12.3 


    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.