(790747) 2018 XR
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	29 Apr 2026	24.5	2.992 AU	3.670 AU	00h26m	-15°18'	41.5°	12.9°

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 2018 XR are:

            e (Eccentricity)                : 0.6653793
            a (Semimajor axis)              : 2.1548467
            i (Inclination)                 : 20.53319
            Ω (Longitude of ascending node) : 78.21441
            ω (Argument of perihelion)      : 114.55012
            M (Mean anomaly)                : 45.20514
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 14.21622
            B (Latitude of perihelion)      : 18.60497
            P (Orbital period in years)     : 3.16            
        

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
2026-04-29 00:00 UT   00 26 07.1   -15 18 22     3.670    2.992   41.5   12.9   226   24.5 
2026-04-29 04:17 UT   00 26 19.7   -15 17 32     3.670    2.992   41.6   12.9   226   24.5 
2026-04-30 00:00 UT   00 27 17.8   -15 13 44     3.666    2.996   42.1   13.0   226   24.5 
2026-05-01 00:00 UT   00 28 28.1   -15 09 11     3.662    3.001   42.7   13.2   227   24.6 
2026-05-02 00:00 UT   00 29 38.0   -15 04 44     3.657    3.005   43.4   13.3   227   24.6 
2026-05-03 00:00 UT   00 30 47.5   -15 00 22     3.652    3.010   44.0   13.5   227   24.6 
2026-05-04 00:00 UT   00 31 56.5   -14 56 05     3.647    3.014   44.6   13.6   228   24.6 
2026-05-05 00:00 UT   00 33 05.1   -14 51 54     3.642    3.019   45.3   13.7   228   24.6 
2026-05-06 00:00 UT   00 34 13.4   -14 47 48     3.637    3.023   45.9   13.9   229   24.6 
2026-05-07 00:00 UT   00 35 21.1   -14 43 48     3.632    3.027   46.5   14.0   229   24.6 
2026-05-08 00:00 UT   00 36 28.5   -14 39 54     3.626    3.032   47.2   14.1   229   24.6 
2026-05-09 00:00 UT   00 37 35.4   -14 36 05     3.621    3.036   47.8   14.3   230   24.6 
2026-05-10 00:00 UT   00 38 41.9   -14 32 22     3.615    3.041   48.4   14.4   230   24.6 
2026-05-11 00:00 UT   00 39 47.9   -14 28 44     3.609    3.045   49.1   14.5   230   24.6 
2026-05-12 00:00 UT   00 40 53.4   -14 25 13     3.603    3.049   49.7   14.6   231   24.6 
2026-05-13 00:00 UT   00 41 58.5   -14 21 48     3.597    3.054   50.4   14.8   231   24.6 
2026-05-14 00:00 UT   00 43 03.2   -14 18 28     3.590    3.058   51.0   14.9   231   24.6 
2026-05-15 00:00 UT   00 44 07.4   -14 15 15     3.584    3.062   51.7   15.0   231   24.6 
2026-05-16 00:00 UT   00 45 11.1   -14 12 08     3.577    3.066   52.4   15.1   232   24.6 
2026-05-17 00:00 UT   00 46 14.3   -14 09 07     3.571    3.071   53.0   15.3   232   24.6 
2026-05-18 00:00 UT   00 47 17.0   -14 06 12     3.564    3.075   53.7   15.4   232   24.6 
2026-05-19 00:00 UT   00 48 19.2   -14 03 24     3.557    3.079   54.3   15.5   233   24.6 
2026-05-20 00:00 UT   00 49 20.9   -14 00 42     3.550    3.083   55.0   15.6   233   24.6 
2026-05-21 00:00 UT   00 50 22.1   -13 58 06     3.542    3.087   55.7   15.7   233   24.6 
2026-05-22 00:00 UT   00 51 22.8   -13 55 37     3.535    3.091   56.4   15.8   234   24.6 
2026-05-23 00:00 UT   00 52 23.0   -13 53 14     3.527    3.095   57.0   15.9   234   24.6 
2026-05-24 00:00 UT   00 53 22.6   -13 50 58     3.520    3.100   57.7   16.0   234   24.6 
2026-05-25 00:00 UT   00 54 21.8   -13 48 49     3.512    3.104   58.4   16.1   234   24.6 
2026-05-26 00:00 UT   00 55 20.3   -13 46 46     3.504    3.108   59.1   16.2   235   24.6 
2026-05-27 00:00 UT   00 56 18.4   -13 44 50     3.496    3.112   59.8   16.3   235   24.6 
2026-05-28 00:00 UT   00 57 15.9   -13 43 01     3.488    3.116   60.4   16.4   235   24.6 
2026-05-29 00:00 UT   00 58 12.8   -13 41 18     3.480    3.120   61.1   16.5   236   24.6 

    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.