2013 SK20
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	13 Oct 2026	31.4	1.699 AU	2.140 AU	16h31m	-25°53'	51.0°	27.1°

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 2013 SK20 are:

            e (Eccentricity)                : 0.3941909
            a (Semimajor axis)              : 1.2230378
            i (Inclination)                 : 5.00258
            Ω (Longitude of ascending node) : 2.30565
            ω (Argument of perihelion)      : 89.19610
            M (Mean anomaly)                : 100.59534
            Epoch                           : 2026 Jun 09

            L (Longitude of perihelion)     : 91.49868
            B (Latitude of perihelion)      : 5.00209
            P (Orbital period in years)     : 1.35            
        

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
2026-10-13 00:00 UT   16 31 40.4   -25 53 13     2.140    1.699   51.0   27.1   102   31.4 
2026-10-13 22:39 UT   16 33 54.2   -25 56 40     2.148    1.699   50.6   27.0   102   31.4 
2026-10-14 00:00 UT   16 34 02.2   -25 56 52     2.148    1.699   50.5   27.0   102   31.4 
2026-10-15 00:00 UT   16 36 24.3   -26 00 25     2.156    1.698   50.1   26.8   101   31.4 
2026-10-16 00:00 UT   16 38 46.8   -26 03 52     2.163    1.697   49.6   26.6   101   31.4 
2026-10-17 00:00 UT   16 41 09.8   -26 07 11     2.171    1.696   49.2   26.4   101   31.4 
2026-10-18 00:00 UT   16 43 33.1   -26 10 24     2.178    1.695   48.7   26.2   101   31.4 
2026-10-19 00:00 UT   16 45 56.8   -26 13 29     2.186    1.695   48.3   26.0   101   31.4 
2026-10-20 00:00 UT   16 48 20.8   -26 16 28     2.193    1.694   47.8   25.8   101   31.4 
2026-10-21 00:00 UT   16 50 45.3   -26 19 19     2.200    1.693   47.4   25.6   100   31.4 
2026-10-22 00:00 UT   16 53 10.1   -26 22 03     2.207    1.692   46.9   25.5   100   31.4 
2026-10-23 00:00 UT   16 55 35.3   -26 24 40     2.214    1.690   46.5   25.3   100   31.4 
2026-10-24 00:00 UT   16 58 00.9   -26 27 09     2.221    1.689   46.0   25.1   100   31.4 
2026-10-25 00:00 UT   17 00 26.8   -26 29 31     2.228    1.688   45.6   24.9   100   31.4 
2026-10-26 00:00 UT   17 02 53.1   -26 31 46     2.234    1.687   45.1   24.7    99   31.4 
2026-10-27 00:00 UT   17 05 19.8   -26 33 53     2.241    1.686   44.7   24.5    99   31.4 
2026-10-28 00:00 UT   17 07 46.8   -26 35 52     2.247    1.685   44.2   24.3    99   31.4 

    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.