2018 BJ1
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	28 Mar 2026	29.6	2.515 AU	1.894 AU	16h30m	-23°36'	117.4°	20.6°

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 BJ1 are:

            e (Eccentricity)                : 0.6038687
            a (Semimajor axis)              : 1.7271402
            i (Inclination)                 : 1.59454
            Ω (Longitude of ascending node) : 284.07017
            ω (Argument of perihelion)      : 103.79811
            M (Mean anomaly)                : 188.50790
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 207.87342
            B (Latitude of perihelion)      : 1.54851
            P (Orbital period in years)     : 2.27            
        

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
2026-03-28 00:00 UT   16 30 22.2   -23 36 01     1.894    2.515  117.4   20.6   280   29.6 
2026-03-28 12:28 UT   16 30 22.9   -23 36 19     1.886    2.513  117.9   20.5   280   29.6 
2026-03-29 00:00 UT   16 30 23.0   -23 36 35     1.878    2.511  118.4   20.5   280   29.6 
2026-03-30 00:00 UT   16 30 21.9   -23 37 06     1.862    2.507  119.4   20.3   280   29.6 
2026-03-31 00:00 UT   16 30 18.9   -23 37 33     1.846    2.504  120.4   20.1   280   29.5 
2026-04-01 00:00 UT   16 30 13.9   -23 37 55     1.830    2.500  121.4   19.9   280   29.5 
2026-04-02 00:00 UT   16 30 06.9   -23 38 14     1.814    2.497  122.4   19.8   280   29.5 
2026-04-03 00:00 UT   16 29 57.8   -23 38 28     1.799    2.493  123.4   19.6   280   29.4 
2026-04-04 00:00 UT   16 29 46.7   -23 38 38     1.783    2.489  124.4   19.4   280   29.4 
2026-04-05 00:00 UT   16 29 33.5   -23 38 43     1.768    2.485  125.5   19.1   280   29.4 
2026-04-06 00:00 UT   16 29 18.1   -23 38 44     1.752    2.482  126.5   18.9   280   29.4 
2026-04-07 00:00 UT   16 29 00.6   -23 38 40     1.737    2.478  127.6   18.7   280   29.3 
2026-04-08 00:00 UT   16 28 40.9   -23 38 31     1.722    2.474  128.6   18.4   280   29.3 
2026-04-09 00:00 UT   16 28 19.0   -23 38 17     1.707    2.470  129.7   18.2   280   29.3 
2026-04-10 00:00 UT   16 27 54.9   -23 37 58     1.693    2.466  130.8   17.9   281   29.2 
2026-04-11 00:00 UT   16 27 28.5   -23 37 33     1.678    2.462  131.8   17.7   281   29.2 
2026-04-12 00:00 UT   16 26 59.8   -23 37 03     1.664    2.458  132.9   17.4   281   29.2 
2026-04-13 00:00 UT   16 26 28.8   -23 36 27     1.649    2.454  134.0   17.1   281   29.1 
2026-04-14 00:00 UT   16 25 55.5   -23 35 46     1.635    2.450  135.1   16.8   281   29.1 
2026-04-15 00:00 UT   16 25 19.9   -23 34 59     1.621    2.446  136.2   16.5   281   29.1 
2026-04-16 00:00 UT   16 24 41.9   -23 34 05     1.608    2.442  137.4   16.2   281   29.0 
2026-04-17 00:00 UT   16 24 01.5   -23 33 06     1.594    2.438  138.5   15.8   281   29.0 
2026-04-18 00:00 UT   16 23 18.8   -23 31 59     1.581    2.434  139.6   15.5   282   29.0 
2026-04-19 00:00 UT   16 22 33.7   -23 30 47     1.567    2.430  140.8   15.1   282   28.9 
2026-04-20 00:00 UT   16 21 46.2   -23 29 27     1.554    2.426  141.9   14.8   282   28.9 
2026-04-21 00:00 UT   16 20 56.3   -23 28 01     1.542    2.422  143.1   14.4   282   28.9 
2026-04-22 00:00 UT   16 20 04.0   -23 26 27     1.529    2.417  144.3   14.0   282   28.8 
2026-04-23 00:00 UT   16 19 09.4   -23 24 46     1.517    2.413  145.5   13.7   283   28.8 
2026-04-24 00:00 UT   16 18 12.5   -23 22 58     1.504    2.409  146.7   13.3   283   28.8 
2026-04-25 00:00 UT   16 17 13.2   -23 21 02     1.492    2.404  147.9   12.9   283   28.7 
2026-04-26 00:00 UT   16 16 11.5   -23 18 58     1.481    2.400  149.1   12.4   283   28.7 
2026-04-27 00:00 UT   16 15 07.6   -23 16 46     1.469    2.396  150.3   12.0   284   28.7 

    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.