2018 BA3
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	31 Mar 2026	31.5	2.537 AU	3.508 AU	00h01m	-03°30'	11.6°	4.5°

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
2026-03-31 00:00 UT   00 01 01.0   -03 30 48     3.508    2.537   11.6    4.5   230   31.5 
2026-03-31 10:00 UT   00 01 39.8   -03 26 53     3.505    2.535   11.8    4.6   230   31.5 
2026-04-01 00:00 UT   00 02 34.1   -03 21 23     3.501    2.533   12.1    4.8   231   31.5 
2026-04-02 00:00 UT   00 04 07.3   -03 11 58     3.494    2.528   12.7    5.0   231   31.5 
2026-04-03 00:00 UT   00 05 40.7   -03 02 31     3.487    2.524   13.2    5.2   232   31.6 
2026-04-04 00:00 UT   00 07 14.3   -02 53 05     3.479    2.519   13.8    5.4   233   31.6 
2026-04-05 00:00 UT   00 08 48.1   -02 43 37     3.472    2.514   14.3    5.6   233   31.6 
2026-04-06 00:00 UT   00 10 22.0   -02 34 09     3.464    2.510   14.9    5.9   234   31.6 
2026-04-07 00:00 UT   00 11 56.1   -02 24 41     3.456    2.505   15.4    6.1   234   31.6 
2026-04-08 00:00 UT   00 13 30.4   -02 15 12     3.448    2.501   16.0    6.3   235   31.6 
2026-04-09 00:00 UT   00 15 04.9   -02 05 42     3.440    2.496   16.5    6.5   235   31.6 
2026-04-10 00:00 UT   00 16 39.5   -01 56 13     3.431    2.491   17.1    6.8   235   31.6 
2026-04-11 00:00 UT   00 18 14.3   -01 46 42     3.423    2.486   17.6    7.0   236   31.6 
2026-04-12 00:00 UT   00 19 49.3   -01 37 12     3.414    2.482   18.2    7.2   236   31.6 
2026-04-13 00:00 UT   00 21 24.5   -01 27 41     3.406    2.477   18.7    7.5   236   31.6 
2026-04-14 00:00 UT   00 22 59.9   -01 18 10     3.397    2.472   19.2    7.7   237   31.6 
2026-04-15 00:00 UT   00 24 35.5   -01 08 39     3.388    2.467   19.8    7.9   237   31.6 
2026-04-16 00:00 UT   00 26 11.3   +00 59 07     3.379    2.463   20.3    8.1   237   31.6 
2026-04-17 00:00 UT   00 27 47.2   +00 49 35     3.370    2.458   20.9    8.4   237   31.6 
2026-04-18 00:00 UT   00 29 23.3   +00 40 04     3.360    2.453   21.4    8.6   238   31.6 
2026-04-19 00:00 UT   00 30 59.7   +00 30 32     3.351    2.448   22.0    8.8   238   31.6 

    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.