(790747) 2018 XR
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	1 Apr 2026	24.3	2.856 AU	3.726 AU	23h50m	-18°00'	25.5°	8.6°

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 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
2026-04-01 00:00 UT   23 50 29.6   -18 00 19     3.726    2.856   25.5    8.6   210   24.3 
2026-04-01 01:37 UT   23 50 35.0   -17 59 51     3.726    2.856   25.5    8.7   210   24.3 
2026-04-02 00:00 UT   23 51 50.8   -17 53 34     3.726    2.861   26.0    8.8   211   24.3 
2026-04-03 00:00 UT   23 53 11.8   -17 46 53     3.726    2.866   26.5    9.0   212   24.3 
2026-04-04 00:00 UT   23 54 32.3   -17 40 16     3.726    2.871   27.0    9.1   212   24.3 
2026-04-05 00:00 UT   23 55 52.6   -17 33 43     3.726    2.876   27.6    9.3   213   24.3 
2026-04-06 00:00 UT   23 57 12.4   -17 27 14     3.725    2.881   28.1    9.4   214   24.4 
2026-04-07 00:00 UT   23 58 31.9   -17 20 49     3.725    2.886   28.6    9.6   215   24.4 
2026-04-08 00:00 UT   23 59 51.1   -17 14 28     3.724    2.891   29.2    9.7   215   24.4 
2026-04-09 00:00 UT   00 01 09.9   -17 08 11     3.723    2.896   29.7    9.9   216   24.4 
2026-04-10 00:00 UT   00 02 28.3   -17 01 58     3.722    2.901   30.3   10.0   217   24.4 
2026-04-11 00:00 UT   00 03 46.4   -16 55 49     3.721    2.906   30.8   10.2   217   24.4 
2026-04-12 00:00 UT   00 05 04.1   -16 49 45     3.719    2.911   31.4   10.3   218   24.4 
2026-04-13 00:00 UT   00 06 21.4   -16 43 45     3.718    2.916   32.0   10.5   218   24.4 
2026-04-14 00:00 UT   00 07 38.4   -16 37 49     3.716    2.921   32.5   10.6   219   24.4 
2026-04-15 00:00 UT   00 08 55.0   -16 31 58     3.714    2.926   33.1   10.8   219   24.4 
2026-04-16 00:00 UT   00 10 11.3   -16 26 11     3.712    2.931   33.7   11.0   220   24.4 
2026-04-17 00:00 UT   00 11 27.1   -16 20 29     3.710    2.935   34.3   11.1   221   24.5 
2026-04-18 00:00 UT   00 12 42.6   -16 14 52     3.707    2.940   34.9   11.3   221   24.5 
2026-04-19 00:00 UT   00 13 57.7   -16 09 19     3.705    2.945   35.5   11.4   222   24.5 
2026-04-20 00:00 UT   00 15 12.4   -16 03 51     3.702    2.950   36.1   11.6   222   24.5 
2026-04-21 00:00 UT   00 16 26.7   -15 58 28     3.699    2.955   36.6   11.7   223   24.5 
2026-04-22 00:00 UT   00 17 40.7   -15 53 10     3.696    2.959   37.2   11.9   223   24.5 
2026-04-23 00:00 UT   00 18 54.2   -15 47 56     3.693    2.964   37.8   12.0   223   24.5 
2026-04-24 00:00 UT   00 20 07.4   -15 42 48     3.689    2.969   38.4   12.2   224   24.5 
2026-04-25 00:00 UT   00 21 20.1   -15 37 45     3.686    2.973   39.1   12.3   224   24.5 
2026-04-26 00:00 UT   00 22 32.5   -15 32 46     3.682    2.978   39.7   12.5   225   24.5 
2026-04-27 00:00 UT   00 23 44.4   -15 27 53     3.678    2.982   40.3   12.6   225   24.5 

    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.