2019 VK4
ephemeris date magn radius delta ra dec elong phase
Today5 Dec 202532.32.800 AU3.682 AU18h23m-27°32'22.9°7.9°
2019 VK4 - 2025-12-05
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 2019 VK4 are:

            e (Eccentricity)                : 0.5632679
            a (Semimajor axis)              : 1.8157231
            i (Inclination)                 : 5.86061
            Ω (Longitude of ascending node) : 32.03526
            ω (Argument of perihelion)      : 79.42967
            M (Mean anomaly)                : 149.79803
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 111.41065
            B (Latitude of perihelion)      : 5.76082
            P (Orbital period in years)     : 2.45            
        

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
2025-12-05 00:00 UT   18 23 28.9   -27 32 37     3.682    2.800   22.9    7.9    98   32.3 
2025-12-05 11:41 UT   18 24 16.3   -27 32 07     3.685    2.801   22.5    7.8    98   32.3 
2025-12-06 00:00 UT   18 25 06.2   -27 31 34     3.689    2.801   22.2    7.6    98   32.3 
2025-12-07 00:00 UT   18 26 43.6   -27 30 28     3.695    2.802   21.6    7.4    98   32.3 
2025-12-08 00:00 UT   18 28 21.0   -27 29 19     3.702    2.804   20.9    7.2    98   32.3 
2025-12-09 00:00 UT   18 29 58.5   -27 28 06     3.708    2.805   20.3    7.0    99   32.3 
2025-12-10 00:00 UT   18 31 36.1   -27 26 51     3.714    2.806   19.7    6.8    99   32.3 
2025-12-11 00:00 UT   18 33 13.7   -27 25 32     3.720    2.807   19.0    6.6    99   32.3 
2025-12-12 00:00 UT   18 34 51.4   -27 24 10     3.725    2.808   18.4    6.3    99   32.3 
2025-12-13 00:00 UT   18 36 29.2   -27 22 45     3.731    2.809   17.7    6.1   100   32.3 
2025-12-14 00:00 UT   18 38 06.9   -27 21 16     3.736    2.810   17.1    5.9   100   32.3 
2025-12-15 00:00 UT   18 39 44.7   -27 19 44     3.742    2.812   16.5    5.7   100   32.3 
2025-12-16 00:00 UT   18 41 22.6   -27 18 10     3.747    2.813   15.8    5.5   101   32.3 
2025-12-17 00:00 UT   18 43 00.5   -27 16 32     3.751    2.814   15.2    5.3   101   32.3 
2025-12-18 00:00 UT   18 44 38.3   -27 14 51     3.756    2.815   14.6    5.1   102   32.2 
2025-12-19 00:00 UT   18 46 16.2   -27 13 06     3.760    2.816   14.0    4.8   103   32.2 
2025-12-20 00:00 UT   18 47 54.1   -27 11 19     3.765    2.817   13.3    4.6   103   32.2 
2025-12-21 00:00 UT   18 49 32.1   -27 09 28     3.769    2.818   12.7    4.4   104   32.2 
2025-12-22 00:00 UT   18 51 10.0   -27 07 34     3.773    2.818   12.1    4.2   105   32.2 
2025-12-23 00:00 UT   18 52 47.8   -27 05 37     3.776    2.819   11.5    4.0   106   32.2 
2025-12-24 00:00 UT   18 54 25.7   -27 03 37     3.780    2.820   10.9    3.8   107   32.2 
2025-12-25 00:00 UT   18 56 03.6   -27 01 34     3.783    2.821   10.3    3.6   108   32.2 
2025-12-26 00:00 UT   18 57 41.4   -26 59 28     3.786    2.822    9.7    3.4   110   32.2 
2025-12-27 00:00 UT   18 59 19.2   -26 57 18     3.789    2.823    9.1    3.2   111   32.2 
2025-12-28 00:00 UT   19 00 56.9   -26 55 06     3.792    2.824    8.6    3.0   113   32.2 


    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.