2020 BC9
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	4 Jun 2026	29.1	2.867 AU	3.319 AU	01h10m	+03°57'	55.4°	16.9°

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 2020 BC9 are:

            e (Eccentricity)                : 0.5668419
            a (Semimajor axis)              : 2.3338634
            i (Inclination)                 : 10.30820
            Ω (Longitude of ascending node) : 159.55991
            ω (Argument of perihelion)      : 343.68672
            M (Mean anomaly)                : 222.05500
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 143.49625
            B (Latitude of perihelion)      : -2.88108
            P (Orbital period in years)     : 3.57            
        

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.

Ephemerides:

Date       Time       RA (2000)    DEC (2000)    delta   radius  elong  phase   PA    magn
2026-06-04 00:00 UT   01 10 24.4   +03 57 03     3.319    2.867   55.4   16.9   245   29.1 
2026-06-04 21:24 UT   01 11 29.6   +04 01 52     3.305    2.863   55.9   17.1   246   29.1 
2026-06-05 00:00 UT   01 11 37.6   +04 02 26     3.303    2.862   56.0   17.1   246   29.1 
2026-06-06 00:00 UT   01 12 50.6   +04 07 46     3.287    2.857   56.7   17.3   246   29.1 
2026-06-07 00:00 UT   01 14 03.6   +04 13 03     3.270    2.853   57.3   17.4   246   29.1 
2026-06-08 00:00 UT   01 15 16.4   +04 18 16     3.254    2.848   57.9   17.6   246   29.1 
2026-06-09 00:00 UT   01 16 29.0   +04 23 26     3.237    2.843   58.6   17.7   246   29.1 
2026-06-10 00:00 UT   01 17 41.6   +04 28 33     3.220    2.838   59.2   17.9   246   29.0 
2026-06-11 00:00 UT   01 18 54.0   +04 33 37     3.203    2.833   59.9   18.1   246   29.0 
2026-06-12 00:00 UT   01 20 06.2   +04 38 36     3.187    2.828   60.5   18.2   246   29.0 
2026-06-13 00:00 UT   01 21 18.3   +04 43 33     3.170    2.824   61.2   18.4   246   29.0 
2026-06-14 00:00 UT   01 22 30.2   +04 48 25     3.153    2.819   61.8   18.5   246   29.0 
2026-06-15 00:00 UT   01 23 41.9   +04 53 14     3.135    2.814   62.5   18.7   246   29.0 
2026-06-16 00:00 UT   01 24 53.4   +04 57 59     3.118    2.809   63.1   18.8   246   29.0 
2026-06-17 00:00 UT   01 26 04.8   +05 02 40     3.101    2.804   63.8   19.0   246   29.0 
2026-06-18 00:00 UT   01 27 16.0   +05 07 18     3.083    2.799   64.4   19.1   246   29.0 
2026-06-19 00:00 UT   01 28 27.0   +05 11 51     3.066    2.794   65.1   19.3   247   28.9 
2026-06-20 00:00 UT   01 29 37.7   +05 16 20     3.048    2.789   65.7   19.4   247   28.9 
2026-06-21 00:00 UT   01 30 48.3   +05 20 45     3.031    2.784   66.4   19.5   247   28.9 
2026-06-22 00:00 UT   01 31 58.6   +05 25 06     3.013    2.779   67.0   19.7   247   28.9 
2026-06-23 00:00 UT   01 33 08.8   +05 29 23     2.996    2.774   67.7   19.8   247   28.9 
2026-06-24 00:00 UT   01 34 18.7   +05 33 35     2.978    2.769   68.3   19.9   247   28.9 
2026-06-25 00:00 UT   01 35 28.3   +05 37 43     2.960    2.764   69.0   20.1   247   28.9 
2026-06-26 00:00 UT   01 36 37.8   +05 41 47     2.942    2.758   69.7   20.2   247   28.9 
2026-06-27 00:00 UT   01 37 47.0   +05 45 46     2.924    2.753   70.3   20.3   247   28.8 
2026-06-28 00:00 UT   01 38 55.9   +05 49 40     2.906    2.748   71.0   20.5   247   28.8 
2026-06-29 00:00 UT   01 40 04.6   +05 53 30     2.888    2.743   71.6   20.6   247   28.8 
2026-06-30 00:00 UT   01 41 13.1   +05 57 16     2.870    2.738   72.3   20.7   248   28.8 
2026-07-01 00:00 UT   01 42 21.2   +06 00 56     2.852    2.733   73.0   20.8   248   28.8 

    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.