2021 KN2
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	23 Sep 2026	29.6	1.130 AU	0.505 AU	05h55m	+17°32'	90.8°	62.7°

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 2021 KN2 are:

            e (Eccentricity)                : 0.3729260
            a (Semimajor axis)              : 1.4098066
            i (Inclination)                 : 3.76320
            Ω (Longitude of ascending node) : 70.31819
            ω (Argument of perihelion)      : 237.17119
            M (Mean anomaly)                : 337.30746
            Epoch                           : 2026 Jun 09

            L (Longitude of perihelion)     : 127.43302
            B (Latitude of perihelion)      : -3.16153
            P (Orbital period in years)     : 1.67            
        

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
2026-09-23 00:00 UT   05 55 03.3   +17 32 25     0.505    1.130   90.8   62.7   270   29.6 
2026-09-23 09:10 UT   05 55 25.3   +17 33 56     0.505    1.132   91.1   62.4   270   29.6 
2026-09-24 00:00 UT   05 56 00.2   +17 36 23     0.505    1.135   91.6   62.1   270   29.6 
2026-09-25 00:00 UT   05 56 54.5   +17 40 19     0.505    1.141   92.3   61.4   270   29.6 
2026-09-26 00:00 UT   05 57 46.1   +17 44 14     0.505    1.147   93.1   60.8   270   29.6 
2026-09-27 00:00 UT   05 58 35.1   +17 48 09     0.505    1.153   93.9   60.2   270   29.6 
2026-09-28 00:00 UT   05 59 21.2   +17 52 02     0.505    1.158   94.7   59.6   270   29.6 
2026-09-29 00:00 UT   06 00 04.5   +17 55 56     0.505    1.164   95.5   59.0   271   29.6 
2026-09-30 00:00 UT   06 00 44.8   +17 59 49     0.505    1.170   96.3   58.3   271   29.6 
2026-10-01 00:00 UT   06 01 22.1   +18 03 43     0.505    1.176   97.1   57.7   271   29.6 
2026-10-02 00:00 UT   06 01 56.3   +18 07 37     0.504    1.182   98.0   57.0   271   29.6 
2026-10-03 00:00 UT   06 02 27.3   +18 11 31     0.504    1.187   98.8   56.4   271   29.6 
2026-10-04 00:00 UT   06 02 55.1   +18 15 27     0.503    1.193   99.7   55.7   271   29.5 
2026-10-05 00:00 UT   06 03 19.4   +18 19 23     0.503    1.199  100.6   55.1   271   29.5 
2026-10-06 00:00 UT   06 03 40.3   +18 23 22     0.502    1.205  101.5   54.4   271   29.5 
2026-10-07 00:00 UT   06 03 57.6   +18 27 22     0.501    1.211  102.4   53.8   271   29.5 
2026-10-08 00:00 UT   06 04 11.3   +18 31 23     0.501    1.216  103.3   53.1   272   29.5 
2026-10-09 00:00 UT   06 04 21.2   +18 35 28     0.500    1.222  104.3   52.4   272   29.5 
2026-10-10 00:00 UT   06 04 27.4   +18 39 34     0.499    1.228  105.2   51.7   272   29.5 
2026-10-11 00:00 UT   06 04 29.7   +18 43 43     0.498    1.234  106.2   51.0   272   29.5 
2026-10-12 00:00 UT   06 04 28.0   +18 47 55     0.497    1.240  107.2   50.3   272   29.4 
2026-10-13 00:00 UT   06 04 22.3   +18 52 09     0.496    1.246  108.2   49.6   272   29.4 
2026-10-14 00:00 UT   06 04 12.6   +18 56 27     0.495    1.251  109.2   48.8   272   29.4 
2026-10-15 00:00 UT   06 03 58.7   +19 00 48     0.494    1.257  110.3   48.1   272   29.4 
2026-10-16 00:00 UT   06 03 40.6   +19 05 12     0.493    1.263  111.3   47.3   272   29.4 
2026-10-17 00:00 UT   06 03 18.2   +19 09 39     0.492    1.269  112.4   46.6   272   29.4 
2026-10-18 00:00 UT   06 02 51.5   +19 14 10     0.491    1.275  113.5   45.8   272   29.4 
2026-10-19 00:00 UT   06 02 20.4   +19 18 43     0.490    1.280  114.6   45.0   272   29.3 
2026-10-20 00:00 UT   06 01 45.0   +19 23 20     0.489    1.286  115.8   44.2   272   29.3 
2026-10-21 00:00 UT   06 01 05.0   +19 27 60     0.488    1.292  116.9   43.4   272   29.3 
2026-10-22 00:00 UT   06 00 20.6   +19 32 43     0.487    1.298  118.1   42.6   272   29.3 
2026-10-23 00:00 UT   05 59 31.6   +19 37 28     0.486    1.303  119.3   41.8   272   29.3 

    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.