(790747) 2018 XR
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	26 Jul 2026	24.4	3.320 AU	2.891 AU	01h32m	-15°44'	106.2°	17.1°

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
2026-07-26 00:00 UT   01 32 10.0   -15 44 27     2.891    3.320  106.2   17.1   254   24.4 
2026-07-26 07:02 UT   01 32 12.0   -15 46 16     2.888    3.321  106.4   17.1   254   24.4 
2026-07-27 00:00 UT   01 32 16.5   -15 50 40     2.881    3.323  107.0   17.0   254   24.4 
2026-07-28 00:00 UT   01 32 21.8   -15 56 60     2.871    3.326  107.9   16.9   255   24.4 
2026-07-29 00:00 UT   01 32 25.9   -16 03 27     2.860    3.329  108.8   16.8   255   24.4 
2026-07-30 00:00 UT   01 32 28.8   -16 10 03     2.850    3.332  109.7   16.7   256   24.4 
2026-07-31 00:00 UT   01 32 30.4   -16 16 46     2.840    3.335  110.5   16.6   256   24.3 
2026-08-01 00:00 UT   01 32 30.7   -16 23 36     2.830    3.338  111.4   16.4   257   24.3 
2026-08-02 00:00 UT   01 32 29.8   -16 30 34     2.820    3.340  112.3   16.3   257   24.3 
2026-08-03 00:00 UT   01 32 27.5   -16 37 38     2.811    3.343  113.2   16.2   258   24.3 
2026-08-04 00:00 UT   01 32 24.0   -16 44 50     2.801    3.346  114.1   16.1   258   24.3 
2026-08-05 00:00 UT   01 32 19.1   -16 52 09     2.792    3.349  115.0   15.9   259   24.3 
2026-08-06 00:00 UT   01 32 13.0   -16 59 35     2.782    3.352  115.9   15.8   259   24.3 
2026-08-07 00:00 UT   01 32 05.5   -17 07 07     2.773    3.354  116.8   15.7   260   24.3 
2026-08-08 00:00 UT   01 31 56.6   -17 14 46     2.764    3.357  117.7   15.5   260   24.3 
2026-08-09 00:00 UT   01 31 46.4   -17 22 31     2.754    3.360  118.6   15.4   261   24.3 
2026-08-10 00:00 UT   01 31 34.8   -17 30 22     2.745    3.363  119.5   15.2   261   24.2 
2026-08-11 00:00 UT   01 31 21.9   -17 38 18     2.737    3.365  120.4   15.1   262   24.2 
2026-08-12 00:00 UT   01 31 07.6   -17 46 21     2.728    3.368  121.3   14.9   263   24.2 
2026-08-13 00:00 UT   01 30 51.9   -17 54 28     2.719    3.371  122.2   14.7   263   24.2 
2026-08-14 00:00 UT   01 30 34.8   -18 02 41     2.711    3.373  123.1   14.6   264   24.2 
2026-08-15 00:00 UT   01 30 16.3   -18 10 58     2.703    3.376  124.0   14.4   265   24.2 
2026-08-16 00:00 UT   01 29 56.5   -18 19 20     2.695    3.378  125.0   14.2   266   24.2 
2026-08-17 00:00 UT   01 29 35.2   -18 27 46     2.687    3.381  125.9   14.0   266   24.2 
2026-08-18 00:00 UT   01 29 12.6   -18 36 16     2.679    3.384  126.8   13.9   267   24.2 
2026-08-19 00:00 UT   01 28 48.5   -18 44 50     2.671    3.386  127.7   13.7   268   24.1 
2026-08-20 00:00 UT   01 28 23.1   -18 53 27     2.664    3.389  128.6   13.5   269   24.1 
2026-08-21 00:00 UT   01 27 56.3   -19 02 06     2.657    3.391  129.5   13.3   270   24.1 
2026-08-22 00:00 UT   01 27 28.1   -19 10 49     2.650    3.394  130.4   13.1   270   24.1 
2026-08-23 00:00 UT   01 26 58.5   -19 19 33     2.643    3.396  131.3   12.9   271   24.1 
2026-08-24 00:00 UT   01 26 27.6   -19 28 20     2.636    3.399  132.2   12.7   272   24.1 
2026-08-25 00:00 UT   01 25 55.3   -19 37 08     2.630    3.401  133.1   12.5   273   24.1 

    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.