2011 BW11
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	13 Nov 2026	34.2	3.153 AU	4.131 AU	14h38m	-16°42'	7.8°	2.4°

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)                : 0.7526113
            a (Semimajor axis)              : 1.9879557
            i (Inclination)                 : 1.55931
            Ω (Longitude of ascending node) : 301.22813
            ω (Argument of perihelion)      : 83.77401
            M (Mean anomaly)                : 190.66041
            Epoch                           : 2026 Jun 09

            L (Longitude of perihelion)     : 24.99985
            B (Latitude of perihelion)      : 1.55011
            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
2026-11-13 00:00 UT   14 38 45.9   -16 42 41     4.131    3.153    7.8    2.4   279   34.2 
2026-11-13 00:55 UT   14 38 48.8   -16 42 54     4.131    3.153    7.8    2.5   279   34.2 
2026-11-14 00:00 UT   14 40 00.1   -16 48 24     4.125    3.150    8.5    2.7   280   34.2 
2026-11-15 00:00 UT   14 41 14.5   -16 54 05     4.119    3.146    9.2    2.9   280   34.2 
2026-11-16 00:00 UT   14 42 29.0   -16 59 45     4.112    3.142    9.9    3.1   281   34.2 
2026-11-17 00:00 UT   14 43 43.6   -17 05 24     4.106    3.139   10.6    3.3   281   34.2 
2026-11-18 00:00 UT   14 44 58.4   -17 11 01     4.099    3.135   11.3    3.5   281   34.2 
2026-11-19 00:00 UT   14 46 13.2   -17 16 38     4.092    3.131   12.0    3.8   282   34.2 
2026-11-20 00:00 UT   14 47 28.3   -17 22 13     4.084    3.128   12.7    4.0   282   34.2 
2026-11-21 00:00 UT   14 48 43.4   -17 27 48     4.077    3.124   13.4    4.2   282   34.2 
2026-11-22 00:00 UT   14 49 58.6   -17 33 21     4.069    3.120   14.0    4.4   282   34.2 
2026-11-23 00:00 UT   14 51 14.0   -17 38 52     4.061    3.116   14.7    4.6   282   34.2 
2026-11-24 00:00 UT   14 52 29.5   -17 44 23     4.053    3.112   15.4    4.8   283   34.2 
2026-11-25 00:00 UT   14 53 45.1   -17 49 52     4.045    3.108   16.1    5.1   283   34.2 
2026-11-26 00:00 UT   14 55 00.8   -17 55 19     4.036    3.104   16.8    5.3   283   34.2 
2026-11-27 00:00 UT   14 56 16.6   -18 00 46     4.027    3.101   17.5    5.5   283   34.2 
2026-11-28 00:00 UT   14 57 32.6   -18 06 11     4.019    3.097   18.2    5.7   283   34.3 
2026-11-29 00:00 UT   14 58 48.6   -18 11 34     4.009    3.093   18.9    5.9   283   34.3 
2026-11-30 00:00 UT   15 00 04.7   -18 16 56     4.000    3.089   19.6    6.2   283   34.3 
2026-12-01 00:00 UT   15 01 20.9   -18 22 17     3.991    3.085   20.3    6.4   283   34.3 
2026-12-02 00:00 UT   15 02 37.2   -18 27 36     3.981    3.081   21.0    6.6   283   34.3 
2026-12-03 00:00 UT   15 03 53.6   -18 32 53     3.971    3.077   21.7    6.8   283   34.3 
2026-12-04 00:00 UT   15 05 10.1   -18 38 09     3.961    3.072   22.4    7.0   283   34.3 
2026-12-05 00:00 UT   15 06 26.7   -18 43 23     3.951    3.068   23.1    7.2   283   34.3 
2026-12-06 00:00 UT   15 07 43.3   -18 48 36     3.940    3.064   23.8    7.5   283   34.3 
2026-12-07 00:00 UT   15 08 60.0   -18 53 47     3.929    3.060   24.5    7.7   283   34.3 
2026-12-08 00:00 UT   15 10 16.7   -18 58 56     3.918    3.056   25.2    7.9   283   34.3 
2026-12-09 00:00 UT   15 11 33.5   -19 04 03     3.907    3.052   25.9    8.1   283   34.3 
2026-12-10 00:00 UT   15 12 50.4   -19 09 09     3.896    3.047   26.6    8.3   283   34.3 

    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.