(790747) 2018 XR
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	29 Jan 2026	23.8	2.495 AU	3.377 AU	22h14m	-26°29'	22.4°	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
2026-01-29 00:00 UT   22 14 30.5   -26 29 43     3.377    2.495   22.4    8.6   107   23.8 
2026-01-29 16:03 UT   22 15 40.9   -26 23 38     3.385    2.500   22.1    8.5   108   23.8 
2026-01-30 00:00 UT   22 16 15.7   -26 20 37     3.388    2.502   22.0    8.5   108   23.8 
2026-01-31 00:00 UT   22 18 00.5   -26 11 32     3.398    2.508   21.5    8.3   109   23.8 
2026-02-01 00:00 UT   22 19 44.7   -26 02 27     3.409    2.515   21.1    8.1   110   23.8 
2026-02-02 00:00 UT   22 21 28.5   -25 53 23     3.419    2.521   20.7    7.9   111   23.8 
2026-02-03 00:00 UT   22 23 11.9   -25 44 21     3.429    2.528   20.3    7.8   113   23.8 
2026-02-04 00:00 UT   22 24 54.8   -25 35 19     3.438    2.534   19.9    7.6   114   23.8 
2026-02-05 00:00 UT   22 26 37.2   -25 26 17     3.448    2.541   19.5    7.5   115   23.8 
2026-02-06 00:00 UT   22 28 19.2   -25 17 17     3.458    2.547   19.2    7.3   116   23.8 
2026-02-07 00:00 UT   22 30 00.8   -25 08 18     3.467    2.553   18.8    7.1   118   23.8 
2026-02-08 00:00 UT   22 31 42.0   -24 59 20     3.476    2.560   18.4    7.0   119   23.8 
2026-02-09 00:00 UT   22 33 22.7   -24 50 23     3.485    2.566   18.1    6.9   121   23.8 
2026-02-10 00:00 UT   22 35 03.0   -24 41 28     3.494    2.572   17.8    6.7   122   23.9 
2026-02-11 00:00 UT   22 36 42.9   -24 32 33     3.503    2.578   17.4    6.6   124   23.9 
2026-02-12 00:00 UT   22 38 22.4   -24 23 40     3.511    2.585   17.1    6.5   125   23.9 
2026-02-13 00:00 UT   22 40 01.5   -24 14 48     3.520    2.591   16.8    6.3   127   23.9 
2026-02-14 00:00 UT   22 41 40.2   -24 05 58     3.528    2.597   16.6    6.2   129   23.9 
2026-02-15 00:00 UT   22 43 18.5   -23 57 09     3.536    2.603   16.3    6.1   131   23.9 
2026-02-16 00:00 UT   22 44 56.3   -23 48 21     3.544    2.609   16.1    6.0   132   23.9 
2026-02-17 00:00 UT   22 46 33.8   -23 39 35     3.552    2.615   15.8    5.9   134   23.9 
2026-02-18 00:00 UT   22 48 10.8   -23 30 51     3.559    2.621   15.6    5.8   136   23.9 

    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.