2019 RJ1
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	3 Feb 2026	33.5	3.796 AU	3.810 AU	15h18m	-18°12'	81.8°	14.9°

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 2019 RJ1 are:

            e (Eccentricity)                : 0.6122259
            a (Semimajor axis)              : 2.4715937
            i (Inclination)                 : 1.21314
            Ω (Longitude of ascending node) : 213.86100
            ω (Argument of perihelion)      : 168.84466
            M (Mean anomaly)                : 207.10788
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 202.70810
            B (Latitude of perihelion)      : 0.23469
            P (Orbital period in years)     : 3.89            
        

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
2026-02-03 00:00 UT   15 18 26.3   -18 12 08     3.810    3.796   81.8   14.9   285   33.5 
2026-02-03 14:38 UT   15 18 45.6   -18 13 17     3.799    3.795   82.3   14.9   285   33.5 
2026-02-04 00:00 UT   15 18 57.7   -18 13 60     3.792    3.794   82.7   14.9   285   33.5 
2026-02-05 00:00 UT   15 19 28.3   -18 15 48     3.774    3.792   83.6   15.0   285   33.5 
2026-02-06 00:00 UT   15 19 58.2   -18 17 32     3.756    3.790   84.5   15.0   285   33.5 
2026-02-07 00:00 UT   15 20 27.2   -18 19 14     3.738    3.788   85.3   15.0   285   33.5 
2026-02-08 00:00 UT   15 20 55.4   -18 20 51     3.720    3.785   86.2   15.1   285   33.5 
2026-02-09 00:00 UT   15 21 22.7   -18 22 26     3.702    3.783   87.1   15.1   285   33.5 
2026-02-10 00:00 UT   15 21 49.2   -18 23 56     3.684    3.781   88.1   15.1   285   33.5 
2026-02-11 00:00 UT   15 22 14.8   -18 25 23     3.666    3.779   89.0   15.1   285   33.4 
2026-02-12 00:00 UT   15 22 39.5   -18 26 47     3.648    3.777   89.9   15.2   285   33.4 
2026-02-13 00:00 UT   15 23 03.3   -18 28 06     3.630    3.774   90.8   15.2   285   33.4 
2026-02-14 00:00 UT   15 23 26.2   -18 29 22     3.611    3.772   91.7   15.2   285   33.4 
2026-02-15 00:00 UT   15 23 48.2   -18 30 35     3.593    3.770   92.6   15.2   285   33.4 
2026-02-16 00:00 UT   15 24 09.2   -18 31 43     3.575    3.768   93.5   15.2   284   33.4 
2026-02-17 00:00 UT   15 24 29.3   -18 32 48     3.557    3.765   94.5   15.2   284   33.4 
2026-02-18 00:00 UT   15 24 48.3   -18 33 49     3.539    3.763   95.4   15.2   284   33.4 
2026-02-19 00:00 UT   15 25 06.4   -18 34 47     3.521    3.761   96.3   15.1   284   33.3 
2026-02-20 00:00 UT   15 25 23.5   -18 35 40     3.503    3.758   97.3   15.1   284   33.3 
2026-02-21 00:00 UT   15 25 39.6   -18 36 29     3.485    3.756   98.2   15.1   284   33.3 
2026-02-22 00:00 UT   15 25 54.7   -18 37 15     3.467    3.754   99.2   15.1   284   33.3 
2026-02-23 00:00 UT   15 26 08.7   -18 37 57     3.449    3.751  100.1   15.0   284   33.3 
2026-02-24 00:00 UT   15 26 21.6   -18 38 34     3.431    3.749  101.1   15.0   284   33.3 
2026-02-25 00:00 UT   15 26 33.5   -18 39 08     3.413    3.747  102.0   15.0   284   33.3 
2026-02-26 00:00 UT   15 26 44.4   -18 39 37     3.395    3.744  103.0   14.9   284   33.3 
2026-02-27 00:00 UT   15 26 54.1   -18 40 03     3.377    3.742  104.0   14.9   284   33.2 
2026-02-28 00:00 UT   15 27 02.8   -18 40 25     3.360    3.740  104.9   14.8   284   33.2 
2026-03-01 00:00 UT   15 27 10.3   -18 40 42     3.342    3.737  105.9   14.8   284   33.2 
2026-03-02 00:00 UT   15 27 16.8   -18 40 55     3.324    3.735  106.9   14.7   284   33.2 
2026-03-03 00:00 UT   15 27 22.1   -18 41 05     3.307    3.732  107.9   14.6   284   33.2 
2026-03-04 00:00 UT   15 27 26.2   -18 41 10     3.289    3.730  108.9   14.6   284   33.2 
2026-03-05 00:00 UT   15 27 29.2   -18 41 10     3.272    3.727  109.8   14.5   284   33.1 

    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.