2018 BJ1
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	9 Oct 2026	30.8	3.058 AU	4.054 AU	13h08m	-08°36'	3.9°	1.3°

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)                : 0.6454746
            a (Semimajor axis)              : 1.8860938
            i (Inclination)                 : 1.69923
            Ω (Longitude of ascending node) : 284.22106
            ω (Argument of perihelion)      : 103.28025
            M (Mean anomaly)                : 107.88033
            Epoch                           : 2026 Jun 09

            L (Longitude of perihelion)     : 207.50695
            B (Latitude of perihelion)      : 1.65378
            P (Orbital period in years)     : 2.59            
        

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
2026-10-09 00:00 UT   13 08 08.4   -08 36 59     4.054    3.058    3.9    1.3   132   30.8 
2026-10-09 20:17 UT   13 09 10.4   -08 43 16     4.056    3.059    3.3    1.1   135   30.8 
2026-10-10 00:00 UT   13 09 21.8   -08 44 25     4.056    3.059    3.2    1.1   135   30.7 
2026-10-11 00:00 UT   13 10 35.2   -08 51 51     4.058    3.061    2.6    0.9   141   30.7 
2026-10-12 00:00 UT   13 11 48.7   -08 59 16     4.059    3.062    2.1    0.7   150   30.7 
2026-10-13 00:00 UT   13 13 02.2   -09 06 40     4.061    3.063    1.6    0.5   164   30.7 
2026-10-14 00:00 UT   13 14 15.7   -09 14 03     4.062    3.065    1.3    0.4   188   30.7 
2026-10-15 00:00 UT   13 15 29.2   -09 21 25     4.063    3.066    1.3    0.4   217   30.7 
2026-10-16 00:00 UT   13 16 42.7   -09 28 47     4.064    3.067    1.6    0.5   240   30.7 
2026-10-17 00:00 UT   13 17 56.3   -09 36 07     4.064    3.068    2.1    0.7   255   30.7 
2026-10-18 00:00 UT   13 19 09.8   -09 43 27     4.065    3.069    2.7    0.9   263   30.7 
2026-10-19 00:00 UT   13 20 23.3   -09 50 46     4.065    3.071    3.3    1.1   269   30.8 
2026-10-20 00:00 UT   13 21 36.8   -09 58 03     4.065    3.072    3.9    1.3   273   30.8 
2026-10-21 00:00 UT   13 22 50.2   -10 05 20     4.064    3.073    4.5    1.5   275   30.8 
2026-10-22 00:00 UT   13 24 03.7   -10 12 35     4.064    3.074    5.2    1.7   278   30.8 
2026-10-23 00:00 UT   13 25 17.2   -10 19 50     4.063    3.075    5.8    1.9   279   30.8 
2026-10-24 00:00 UT   13 26 30.6   -10 27 03     4.062    3.076    6.5    2.1   280   30.8 
2026-10-25 00:00 UT   13 27 44.0   -10 34 15     4.061    3.077    7.1    2.3   281   30.9 
2026-10-26 00:00 UT   13 28 57.4   -10 41 26     4.060    3.078    7.8    2.5   282   30.9 
2026-10-27 00:00 UT   13 30 10.8   -10 48 36     4.059    3.079    8.5    2.7   283   30.9 
2026-10-28 00:00 UT   13 31 24.1   -10 55 44     4.057    3.080    9.1    2.9   284   30.9 
2026-10-29 00:00 UT   13 32 37.4   -11 02 51     4.055    3.081    9.8    3.1   284   30.9 
2026-10-30 00:00 UT   13 33 50.7   -11 09 57     4.053    3.082   10.5    3.4   284   30.9 
2026-10-31 00:00 UT   13 35 03.9   -11 17 02     4.051    3.083   11.1    3.6   285   30.9 
2026-11-01 00:00 UT   13 36 17.1   -11 24 05     4.049    3.084   11.8    3.8   285   31.0 
2026-11-02 00:00 UT   13 37 30.3   -11 31 07     4.046    3.085   12.5    4.0   285   31.0 
2026-11-03 00:00 UT   13 38 43.4   -11 38 07     4.043    3.086   13.2    4.2   286   31.0 
2026-11-04 00:00 UT   13 39 56.4   -11 45 07     4.040    3.086   13.8    4.4   286   31.0 

    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.