2017 RX2
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	9 May 2026	28.5	0.894 AU	0.962 AU	23h36m	-01°00'	53.9°	65.8°

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 2017 RX2 are:

            e (Eccentricity)                : 0.5445439
            a (Semimajor axis)              : 0.7412818
            i (Inclination)                 : 1.68816
            Ω (Longitude of ascending node) : 174.05794
            ω (Argument of perihelion)      : 334.34887
            M (Mean anomaly)                : 182.39882
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 148.41652
            B (Latitude of perihelion)      : -0.73070
            P (Orbital period in years)     : 0.64            
        

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
2026-05-09 00:00 UT   23 36 17.4   -01 00 34     0.962    0.894   53.9   65.8   248   28.5 
2026-05-09 19:48 UT   23 37 47.8   +00 50 50     0.964    0.901   54.3   65.5   248   28.6 
2026-05-10 00:00 UT   23 38 07.0   +00 48 46     0.964    0.902   54.4   65.4   248   28.6 
2026-05-11 00:00 UT   23 39 57.4   +00 36 54     0.966    0.911   54.8   65.0   248   28.6 
2026-05-12 00:00 UT   23 41 48.5   +00 24 58     0.968    0.919   55.3   64.7   248   28.6 
2026-05-13 00:00 UT   23 43 40.3   +00 12 58     0.970    0.926   55.7   64.3   248   28.6 
2026-05-14 00:00 UT   23 45 32.6   +00 00 54     0.971    0.934   56.2   64.0   248   28.6 
2026-05-15 00:00 UT   23 47 25.4   +00 11 14     0.972    0.942   56.6   63.7   248   28.6 
2026-05-16 00:00 UT   23 49 18.8   +00 23 24     0.973    0.949   57.1   63.5   248   28.6 
2026-05-17 00:00 UT   23 51 12.6   +00 35 37     0.974    0.956   57.5   63.2   247   28.6 
2026-05-18 00:00 UT   23 53 06.9   +00 47 52     0.974    0.963   58.0   62.9   247   28.6 
2026-05-19 00:00 UT   23 55 01.5   +01 00 09     0.975    0.970   58.4   62.7   247   28.7 
2026-05-20 00:00 UT   23 56 56.6   +01 12 29     0.975    0.977   58.9   62.5   247   28.7 
2026-05-21 00:00 UT   23 58 52.0   +01 24 51     0.974    0.984   59.3   62.2   247   28.7 
2026-05-22 00:00 UT   00 00 47.8   +01 37 14     0.974    0.990   59.8   62.0   247   28.7 
2026-05-23 00:00 UT   00 02 44.0   +01 49 39     0.973    0.996   60.2   61.8   247   28.7 
2026-05-24 00:00 UT   00 04 40.5   +02 02 05     0.973    1.003   60.6   61.7   247   28.7 
2026-05-25 00:00 UT   00 06 37.3   +02 14 33     0.972    1.009   61.1   61.5   247   28.7 

    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.