2020 BC9
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	21 Apr 2026	29.3	3.061 AU	3.919 AU	00h15m	-00°37'	27.3°	8.7°

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 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
2026-04-21 00:00 UT   00 15 31.2   +00 37 43     3.919    3.061   27.3    8.7   242   29.3 
2026-04-21 20:23 UT   00 16 35.4   +00 31 56     3.910    3.057   27.9    8.8   243   29.3 
2026-04-22 00:00 UT   00 16 46.8   +00 30 54     3.908    3.057   28.0    8.9   243   29.3 
2026-04-23 00:00 UT   00 18 02.4   +00 24 06     3.897    3.053   28.6    9.1   243   29.3 
2026-04-24 00:00 UT   00 19 17.9   +00 17 20     3.886    3.049   29.2    9.3   243   29.3 
2026-04-25 00:00 UT   00 20 33.5   +00 10 34     3.875    3.045   29.9    9.5   243   29.3 
2026-04-26 00:00 UT   00 21 49.0   +00 03 50     3.864    3.040   30.5    9.7   243   29.3 
2026-04-27 00:00 UT   00 23 04.6   +00 02 54     3.853    3.036   31.2    9.9   243   29.3 
2026-04-28 00:00 UT   00 24 20.1   +00 09 36     3.841    3.032   31.8   10.1   243   29.3 
2026-04-29 00:00 UT   00 25 35.6   +00 16 17     3.829    3.028   32.4   10.3   243   29.3 
2026-04-30 00:00 UT   00 26 51.1   +00 22 57     3.817    3.024   33.1   10.5   243   29.3 
2026-05-01 00:00 UT   00 28 06.5   +00 29 35     3.805    3.019   33.7   10.7   243   29.3 
2026-05-02 00:00 UT   00 29 22.0   +00 36 13     3.793    3.015   34.3   10.9   243   29.3 
2026-05-03 00:00 UT   00 30 37.4   +00 42 48     3.781    3.011   35.0   11.1   243   29.3 
2026-05-04 00:00 UT   00 31 52.8   +00 49 23     3.769    3.007   35.6   11.3   243   29.3 
2026-05-05 00:00 UT   00 33 08.2   +00 55 56     3.756    3.002   36.3   11.5   243   29.3 
2026-05-06 00:00 UT   00 34 23.6   +01 02 28     3.743    2.998   36.9   11.6   244   29.3 
2026-05-07 00:00 UT   00 35 38.9   +01 08 58     3.730    2.994   37.5   11.8   244   29.3 
2026-05-08 00:00 UT   00 36 54.2   +01 15 26     3.717    2.990   38.2   12.0   244   29.3 
2026-05-09 00:00 UT   00 38 09.5   +01 21 53     3.704    2.985   38.8   12.2   244   29.3 
2026-05-10 00:00 UT   00 39 24.7   +01 28 18     3.691    2.981   39.4   12.4   244   29.3 
2026-05-11 00:00 UT   00 40 39.9   +01 34 42     3.678    2.977   40.1   12.6   244   29.3 
2026-05-12 00:00 UT   00 41 55.1   +01 41 03     3.664    2.972   40.7   12.8   244   29.3 
2026-05-13 00:00 UT   00 43 10.2   +01 47 23     3.650    2.968   41.3   13.0   244   29.2 
2026-05-14 00:00 UT   00 44 25.2   +01 53 41     3.637    2.963   42.0   13.2   244   29.2 
2026-05-15 00:00 UT   00 45 40.3   +01 59 57     3.623    2.959   42.6   13.4   244   29.2 
2026-05-16 00:00 UT   00 46 55.2   +02 06 11     3.609    2.954   43.3   13.6   244   29.2 

    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.