2019 RO2
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	17 Oct 2026	30.2	2.314 AU	2.906 AU	16h26m	-22°49'	45.2°	17.8°

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 2019 RO2 are:

            e (Eccentricity)                : 0.5702693
            a (Semimajor axis)              : 2.4253765
            i (Inclination)                 : 1.56467
            Ω (Longitude of ascending node) : 21.86010
            ω (Argument of perihelion)      : 5.27446
            M (Mean anomaly)                : 273.26100
            Epoch                           : 2026 Jun 09

            L (Longitude of perihelion)     : 27.13260
            B (Latitude of perihelion)      : 0.14382
            P (Orbital period in years)     : 3.78            
        

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
2026-10-17 00:00 UT   16 26 02.4   -22 49 16     2.906    2.314   45.2   17.8   100   30.2 
2026-10-17 10:26 UT   16 26 45.3   -22 50 48     2.907    2.311   44.9   17.7   100   30.2 
2026-10-18 00:00 UT   16 27 41.3   -22 52 47     2.909    2.308   44.6   17.6   100   30.2 
2026-10-19 00:00 UT   16 29 21.1   -22 56 15     2.912    2.301   44.0   17.5   100   30.2 
2026-10-20 00:00 UT   16 31 01.7   -22 59 41     2.914    2.294   43.4   17.3   100   30.2 
2026-10-21 00:00 UT   16 32 43.2   -23 03 05     2.916    2.288   42.8   17.2   100   30.1 
2026-10-22 00:00 UT   16 34 25.6   -23 06 27     2.919    2.281   42.2   17.0   100   30.1 
2026-10-23 00:00 UT   16 36 08.8   -23 09 47     2.921    2.274   41.6   16.9    99   30.1 
2026-10-24 00:00 UT   16 37 52.8   -23 13 04     2.923    2.268   41.0   16.7    99   30.1 
2026-10-25 00:00 UT   16 39 37.8   -23 16 19     2.925    2.261   40.4   16.6    99   30.1 
2026-10-26 00:00 UT   16 41 23.5   -23 19 31     2.926    2.254   39.8   16.4    99   30.1 
2026-10-27 00:00 UT   16 43 10.1   -23 22 40     2.928    2.247   39.2   16.2    99   30.1 
2026-10-28 00:00 UT   16 44 57.5   -23 25 46     2.929    2.241   38.6   16.1    99   30.1 
2026-10-29 00:00 UT   16 46 45.8   -23 28 50     2.931    2.234   38.1   15.9    99   30.1 
2026-10-30 00:00 UT   16 48 35.0   -23 31 50     2.932    2.227   37.5   15.7    98   30.1 
2026-10-31 00:00 UT   16 50 24.9   -23 34 47     2.933    2.220   36.9   15.6    98   30.0 
2026-11-01 00:00 UT   16 52 15.7   -23 37 41     2.934    2.214   36.3   15.4    98   30.0 
2026-11-02 00:00 UT   16 54 07.4   -23 40 32     2.935    2.207   35.8   15.2    98   30.0 
2026-11-03 00:00 UT   16 55 59.9   -23 43 18     2.935    2.200   35.2   15.1    98   30.0 
2026-11-04 00:00 UT   16 57 53.3   -23 46 02     2.936    2.193   34.6   14.9    98   30.0 
2026-11-05 00:00 UT   16 59 47.4   -23 48 41     2.936    2.186   34.1   14.7    98   30.0 
2026-11-06 00:00 UT   17 01 42.5   -23 51 17     2.936    2.179   33.5   14.5    97   30.0 

    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.