2011 BW11
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	15 Jun 2026	34.3	3.472 AU	3.020 AU	12h40m	-06°15'	108.1°	16.1°

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 2011 BW11 are:

            e (Eccentricity)                : 0.7526904
            a (Semimajor axis)              : 1.9880660
            i (Inclination)                 : 1.55904
            Ω (Longitude of ascending node) : 301.23079
            ω (Argument of perihelion)      : 83.77976
            M (Mean anomaly)                : 120.59356
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 25.00826
            B (Latitude of perihelion)      : 1.54986
            P (Orbital period in years)     : 2.80            
        

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
2026-06-15 00:00 UT   12 40 02.6   -06 15 22     3.020    3.472  108.1   16.1   112   34.3 
2026-06-15 04:49 UT   12 40 01.9   -06 15 10     3.023    3.472  107.9   16.2   112   34.3 
2026-06-16 00:00 UT   12 39 59.3   -06 14 27     3.034    3.471  107.1   16.2   113   34.3 
2026-06-17 00:00 UT   12 39 57.1   -06 13 40     3.048    3.470  106.1   16.3   113   34.3 
2026-06-18 00:00 UT   12 39 56.1   -06 13 00     3.062    3.470  105.2   16.4   113   34.3 
2026-06-19 00:00 UT   12 39 56.2   -06 12 28     3.077    3.469  104.2   16.5   113   34.3 
2026-06-20 00:00 UT   12 39 57.5   -06 12 03     3.091    3.468  103.3   16.6   113   34.3 
2026-06-21 00:00 UT   12 39 59.8   -06 11 45     3.106    3.467  102.3   16.6   113   34.4 
2026-06-22 00:00 UT   12 40 03.2   -06 11 34     3.120    3.467  101.4   16.7   113   34.4 
2026-06-23 00:00 UT   12 40 07.8   -06 11 30     3.135    3.466  100.4   16.8   113   34.4 
2026-06-24 00:00 UT   12 40 13.4   -06 11 34     3.149    3.465   99.5   16.8   113   34.4 
2026-06-25 00:00 UT   12 40 20.0   -06 11 44     3.164    3.464   98.6   16.9   113   34.4 
2026-06-26 00:00 UT   12 40 27.7   -06 12 01     3.178    3.463   97.7   16.9   113   34.4 
2026-06-27 00:00 UT   12 40 36.4   -06 12 25     3.193    3.462   96.7   17.0   113   34.4 
2026-06-28 00:00 UT   12 40 46.2   -06 12 55     3.207    3.461   95.8   17.0   113   34.4 
2026-06-29 00:00 UT   12 40 56.9   -06 13 32     3.222    3.461   94.9   17.0   113   34.4 
2026-06-30 00:00 UT   12 41 08.7   -06 14 16     3.236    3.460   94.0   17.0   113   34.4 
2026-07-01 00:00 UT   12 41 21.4   -06 15 06     3.251    3.459   93.1   17.1   113   34.5 
2026-07-02 00:00 UT   12 41 35.1   -06 16 02     3.266    3.458   92.2   17.1   113   34.5 
2026-07-03 00:00 UT   12 41 49.8   -06 17 04     3.280    3.457   91.3   17.1   113   34.5 
2026-07-04 00:00 UT   12 42 05.3   -06 18 13     3.295    3.456   90.4   17.1   113   34.5 
2026-07-05 00:00 UT   12 42 21.9   -06 19 28     3.309    3.455   89.6   17.1   113   34.5 
2026-07-06 00:00 UT   12 42 39.3   -06 20 49     3.324    3.453   88.7   17.1   113   34.5 
2026-07-07 00:00 UT   12 42 57.7   -06 22 16     3.338    3.452   87.8   17.1   113   34.5 
2026-07-08 00:00 UT   12 43 16.9   -06 23 49     3.353    3.451   86.9   17.1   113   34.5 
2026-07-09 00:00 UT   12 43 37.1   -06 25 28     3.367    3.450   86.1   17.1   113   34.5 
2026-07-10 00:00 UT   12 43 58.1   -06 27 12     3.382    3.449   85.2   17.1   113   34.5 
2026-07-11 00:00 UT   12 44 20.0   -06 29 03     3.396    3.448   84.4   17.1   113   34.5 
2026-07-12 00:00 UT   12 44 42.8   -06 30 58     3.410    3.447   83.5   17.0   113   34.6 
2026-07-13 00:00 UT   12 45 06.4   -06 32 60     3.425    3.446   82.7   17.0   113   34.6 
2026-07-14 00:00 UT   12 45 30.9   -06 35 07     3.439    3.444   81.8   17.0   113   34.6 
2026-07-15 00:00 UT   12 45 56.1   -06 37 19     3.453    3.443   81.0   17.0   113   34.6 

    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.