(790747) 2018 XR
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	27 May 2026	24.6	3.112 AU	3.496 AU	00h56m	-13°44'	59.8°	16.3°

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 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
2026-05-27 00:00 UT   00 56 18.4   -13 44 50     3.496    3.112   59.8   16.3   235   24.6 
2026-05-27 06:44 UT   00 56 34.6   -13 44 19     3.494    3.113   59.9   16.4   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 
2026-05-30 00:00 UT   00 59 09.2   -13 39 43     3.472    3.124   61.8   16.6   236   24.6 
2026-05-31 00:00 UT   01 00 05.0   -13 38 14     3.463    3.128   62.5   16.7   236   24.6 
2026-06-01 00:00 UT   01 01 00.2   -13 36 52     3.455    3.132   63.2   16.8   236   24.6 
2026-06-02 00:00 UT   01 01 54.9   -13 35 37     3.446    3.135   63.9   16.9   237   24.6 
2026-06-03 00:00 UT   01 02 49.0   -13 34 29     3.437    3.139   64.6   17.0   237   24.6 
2026-06-04 00:00 UT   01 03 42.4   -13 33 29     3.429    3.143   65.3   17.1   237   24.6 
2026-06-05 00:00 UT   01 04 35.3   -13 32 35     3.420    3.147   66.0   17.1   237   24.6 
2026-06-06 00:00 UT   01 05 27.6   -13 31 49     3.411    3.151   66.7   17.2   238   24.6 
2026-06-07 00:00 UT   01 06 19.2   -13 31 10     3.401    3.155   67.5   17.3   238   24.6 
2026-06-08 00:00 UT   01 07 10.2   -13 30 39     3.392    3.159   68.2   17.4   238   24.6 
2026-06-09 00:00 UT   01 08 00.6   -13 30 15     3.383    3.162   68.9   17.4   239   24.6 
2026-06-10 00:00 UT   01 08 50.4   -13 29 58     3.373    3.166   69.6   17.5   239   24.6 
2026-06-11 00:00 UT   01 09 39.4   -13 29 49     3.364    3.170   70.3   17.6   239   24.6 
2026-06-12 00:00 UT   01 10 27.8   -13 29 48     3.354    3.174   71.1   17.6   239   24.6 
2026-06-13 00:00 UT   01 11 15.6   -13 29 54     3.345    3.177   71.8   17.7   240   24.6 
2026-06-14 00:00 UT   01 12 02.6   -13 30 09     3.335    3.181   72.5   17.7   240   24.6 
2026-06-15 00:00 UT   01 12 49.0   -13 30 31     3.325    3.185   73.3   17.8   240   24.6 
2026-06-16 00:00 UT   01 13 34.6   -13 31 01     3.315    3.188   74.0   17.8   240   24.6 
2026-06-17 00:00 UT   01 14 19.5   -13 31 39     3.305    3.192   74.7   17.9   241   24.6 
2026-06-18 00:00 UT   01 15 03.7   -13 32 24     3.295    3.196   75.5   17.9   241   24.6 
2026-06-19 00:00 UT   01 15 47.1   -13 33 18     3.285    3.199   76.2   18.0   241   24.6 
2026-06-20 00:00 UT   01 16 29.8   -13 34 20     3.275    3.203   77.0   18.0   242   24.6 
2026-06-21 00:00 UT   01 17 11.7   -13 35 30     3.265    3.206   77.7   18.0   242   24.6 
2026-06-22 00:00 UT   01 17 52.9   -13 36 48     3.254    3.210   78.5   18.1   242   24.6 
2026-06-23 00:00 UT   01 18 33.2   -13 38 14     3.244    3.214   79.2   18.1   242   24.6 
2026-06-24 00:00 UT   01 19 12.8   -13 39 49     3.234    3.217   80.0   18.1   243   24.6 
2026-06-25 00:00 UT   01 19 51.6   -13 41 31     3.223    3.221   80.8   18.2   243   24.6 
2026-06-26 00:00 UT   01 20 29.5   -13 43 22     3.213    3.224   81.5   18.2   243   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.