2019 RJ1
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	11 May 2026	31.9	3.533 AU	2.526 AU	14h47m	-15°47'	174.3°	1.6°

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 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
2026-05-11 00:00 UT   14 47 51.8   -15 47 50     2.526    3.533  174.3    1.6   111   31.9 
2026-05-11 17:34 UT   14 47 08.4   -15 44 28     2.525    3.530  173.5    1.9   110   31.9 
2026-05-12 00:00 UT   14 46 52.5   -15 43 14     2.524    3.529  173.1    2.0   110   31.9 
2026-05-13 00:00 UT   14 45 53.3   -15 38 38     2.523    3.526  171.9    2.3   110   31.9 
2026-05-14 00:00 UT   14 44 54.4   -15 34 01     2.522    3.523  170.7    2.7   110   31.9 
2026-05-15 00:00 UT   14 43 55.6   -15 29 24     2.521    3.519  169.5    3.0   109   31.9 
2026-05-16 00:00 UT   14 42 57.2   -15 24 48     2.520    3.516  168.3    3.3   109   32.0 
2026-05-17 00:00 UT   14 41 59.0   -15 20 12     2.520    3.512  167.1    3.7   109   32.0 
2026-05-18 00:00 UT   14 41 01.3   -15 15 37     2.520    3.509  165.9    4.0   109   32.0 
2026-05-19 00:00 UT   14 40 03.9   -15 11 03     2.520    3.506  164.7    4.4   109   32.0 
2026-05-20 00:00 UT   14 39 07.1   -15 06 30     2.520    3.502  163.4    4.7   109   32.0 
2026-05-21 00:00 UT   14 38 10.7   -15 01 58     2.521    3.499  162.2    5.1   109   32.1 
2026-05-22 00:00 UT   14 37 14.9   -14 57 28     2.522    3.495  161.0    5.4   109   32.1 
2026-05-23 00:00 UT   14 36 19.7   -14 53 01     2.524    3.492  159.9    5.7   109   32.1 
2026-05-24 00:00 UT   14 35 25.1   -14 48 35     2.526    3.488  158.7    6.1   109   32.1 
2026-05-25 00:00 UT   14 34 31.1   -14 44 12     2.528    3.485  157.5    6.4   109   32.1 
2026-05-26 00:00 UT   14 33 37.9   -14 39 51     2.530    3.481  156.3    6.7   109   32.1 
2026-05-27 00:00 UT   14 32 45.5   -14 35 33     2.532    3.477  155.1    7.0   109   32.1 
2026-05-28 00:00 UT   14 31 53.8   -14 31 18     2.535    3.474  153.9    7.4   109   32.2 
2026-05-29 00:00 UT   14 31 02.9   -14 27 06     2.538    3.470  152.7    7.7   109   32.2 
2026-05-30 00:00 UT   14 30 12.8   -14 22 58     2.542    3.467  151.6    8.0   109   32.2 
2026-05-31 00:00 UT   14 29 23.7   -14 18 53     2.545    3.463  150.4    8.3   109   32.2 
2026-06-01 00:00 UT   14 28 35.4   -14 14 52     2.549    3.460  149.2    8.6   109   32.2 
2026-06-02 00:00 UT   14 27 48.1   -14 10 54     2.553    3.456  148.1    8.9   109   32.2 
2026-06-03 00:00 UT   14 27 01.7   -14 07 01     2.558    3.452  146.9    9.2   109   32.2 
2026-06-04 00:00 UT   14 26 16.3   -14 03 12     2.562    3.449  145.8    9.5   109   32.3 
2026-06-05 00:00 UT   14 25 31.9   -13 59 28     2.567    3.445  144.6    9.8   109   32.3 
2026-06-06 00:00 UT   14 24 48.5   -13 55 48     2.573    3.441  143.5   10.1   109   32.3 
2026-06-07 00:00 UT   14 24 06.2   -13 52 14     2.578    3.438  142.3   10.4   109   32.3 
2026-06-08 00:00 UT   14 23 25.0   -13 48 44     2.583    3.434  141.2   10.7   109   32.3 
2026-06-09 00:00 UT   14 22 44.8   -13 45 19     2.589    3.430  140.1   10.9   109   32.3 
2026-06-10 00:00 UT   14 22 05.8   -13 41 59     2.595    3.426  139.0   11.2   109   32.3 

    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.