2018 BA3
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	19 May 2026	31.4	2.293 AU	3.010 AU	01h20m	+04°12'	37.6°	15.6°

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 2018 BA3 are:

            e (Eccentricity)                : 0.5208915
            a (Semimajor axis)              : 2.0544475
            i (Inclination)                 : 6.13542
            Ω (Longitude of ascending node) : 126.04992
            ω (Argument of perihelion)      : 10.50906
            M (Mean anomaly)                : 226.30347
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 136.50011
            B (Latitude of perihelion)      : 1.11698
            P (Orbital period in years)     : 2.94            
        

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
2026-05-19 00:00 UT   01 20 48.0   +04 12 40     3.010    2.293   37.6   15.6   243   31.4 
2026-05-19 15:35 UT   01 21 55.1   +04 18 40     3.001    2.289   37.9   15.8   243   31.4 
2026-05-20 00:00 UT   01 22 31.3   +04 21 55     2.997    2.287   38.1   15.8   243   31.4 
2026-05-21 00:00 UT   01 24 15.0   +04 31 08     2.983    2.282   38.6   16.1   243   31.4 
2026-05-22 00:00 UT   01 25 58.9   +04 40 21     2.970    2.276   39.1   16.3   243   31.4 
2026-05-23 00:00 UT   01 27 43.1   +04 49 32     2.957    2.271   39.6   16.5   243   31.4 
2026-05-24 00:00 UT   01 29 27.6   +04 58 42     2.944    2.265   40.1   16.7   244   31.4 
2026-05-25 00:00 UT   01 31 12.3   +05 07 50     2.930    2.260   40.6   17.0   244   31.4 
2026-05-26 00:00 UT   01 32 57.4   +05 16 58     2.917    2.254   41.1   17.2   244   31.4 
2026-05-27 00:00 UT   01 34 42.7   +05 26 03     2.903    2.249   41.6   17.4   244   31.4 
2026-05-28 00:00 UT   01 36 28.3   +05 35 08     2.889    2.243   42.1   17.6   244   31.4 
2026-05-29 00:00 UT   01 38 14.3   +05 44 10     2.876    2.237   42.6   17.9   244   31.4 
2026-05-30 00:00 UT   01 40 00.6   +05 53 12     2.862    2.232   43.1   18.1   244   31.4 
2026-05-31 00:00 UT   01 41 47.1   +06 02 12     2.848    2.226   43.6   18.3   244   31.4 
2026-06-01 00:00 UT   01 43 34.0   +06 11 10     2.834    2.220   44.1   18.5   245   31.3 
2026-06-02 00:00 UT   01 45 21.3   +06 20 06     2.820    2.215   44.6   18.7   245   31.3 
2026-06-03 00:00 UT   01 47 08.8   +06 29 01     2.806    2.209   45.1   19.0   245   31.3 
2026-06-04 00:00 UT   01 48 56.7   +06 37 54     2.791    2.203   45.5   19.2   245   31.3 
2026-06-05 00:00 UT   01 50 44.9   +06 46 46     2.777    2.197   46.0   19.4   245   31.3 
2026-06-06 00:00 UT   01 52 33.5   +06 55 35     2.763    2.192   46.5   19.6   245   31.3 

    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.