2022 WK1
ephemeris date magn radius delta ra dec elong phase
Today21 Oct 202529.62.136 AU2.740 AU16h37m-25°06'43.9°18.8°
2022 WK1 - 2025-10-21
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 2022 WK1 are:

            e (Eccentricity)                : 0.4830123
            a (Semimajor axis)              : 1.6725014
            i (Inclination)                 : 7.89167
            Ω (Longitude of ascending node) : 60.92891
            ω (Argument of perihelion)      : 63.57154
            M (Mean anomaly)                : 116.51273
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 124.28253
            B (Latitude of perihelion)      : 7.06247
            P (Orbital period in years)     : 2.16            
        

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
2025-10-21 00:00 UT   16 37 02.0   -25 06 55     2.740    2.136   43.9   18.8   101   29.6 
2025-10-21 20:14 UT   16 38 45.8   -25 10 58     2.750    2.140   43.4   18.6   101   29.6 
2025-10-22 00:00 UT   16 39 05.1   -25 11 43     2.752    2.140   43.3   18.6   101   29.6 
2025-10-23 00:00 UT   16 41 08.3   -25 16 25     2.765    2.145   42.8   18.4   101   29.6 
2025-10-24 00:00 UT   16 43 11.6   -25 21 01     2.777    2.149   42.3   18.2   101   29.6 
2025-10-25 00:00 UT   16 45 14.8   -25 25 31     2.790    2.153   41.8   17.9   101   29.6 
2025-10-26 00:00 UT   16 47 18.1   -25 29 54     2.802    2.157   41.2   17.7   101   29.6 
2025-10-27 00:00 UT   16 49 21.4   -25 34 11     2.814    2.161   40.7   17.5   101   29.6 
2025-10-28 00:00 UT   16 51 24.8   -25 38 21     2.826    2.165   40.2   17.2   100   29.6 
2025-10-29 00:00 UT   16 53 28.1   -25 42 26     2.838    2.168   39.7   17.0   100   29.6 
2025-10-30 00:00 UT   16 55 31.5   -25 46 24     2.850    2.172   39.1   16.8   100   29.6 
2025-10-31 00:00 UT   16 57 34.8   -25 50 16     2.862    2.176   38.6   16.5   100   29.6 
2025-11-01 00:00 UT   16 59 38.2   -25 54 01     2.874    2.180   38.1   16.3   100   29.7 
2025-11-02 00:00 UT   17 01 41.6   -25 57 41     2.885    2.184   37.6   16.1   100   29.7 
2025-11-03 00:00 UT   17 03 45.0   -26 01 14     2.897    2.188   37.0   15.8   100   29.7 
2025-11-04 00:00 UT   17 05 48.3   -26 04 41     2.908    2.191   36.5   15.6   100   29.7 
2025-11-05 00:00 UT   17 07 51.7   -26 08 01     2.919    2.195   36.0   15.4   100   29.7 
2025-11-06 00:00 UT   17 09 55.1   -26 11 16     2.930    2.199   35.4   15.1   100   29.7 
2025-11-07 00:00 UT   17 11 58.4   -26 14 24     2.941    2.203   34.9   14.9    99   29.7 
2025-11-08 00:00 UT   17 14 01.8   -26 17 26     2.952    2.206   34.4   14.7    99   29.7 


    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.