2019 RO2
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	22 Apr 2026	30.2	3.230 AU	2.365 AU	16h23m	-22°50'	143.7°	10.6°

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 2019 RO2 are:

            e (Eccentricity)                : 0.5703203
            a (Semimajor axis)              : 2.4245373
            i (Inclination)                 : 1.56476
            Ω (Longitude of ascending node) : 21.86527
            ω (Argument of perihelion)      : 5.27939
            M (Mean anomaly)                : 221.26186
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 27.14270
            B (Latitude of perihelion)      : 0.14396
            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
2026-04-22 00:00 UT   16 23 22.3   -22 50 14     2.365    3.230  143.7   10.6   281   30.2 
2026-04-22 05:12 UT   16 23 13.8   -22 50 02     2.362    3.229  143.9   10.6   281   30.2 
2026-04-23 00:00 UT   16 22 42.4   -22 49 16     2.352    3.226  144.8   10.3   281   30.2 
2026-04-24 00:00 UT   16 22 01.1   -22 48 13     2.340    3.222  145.9   10.1   281   30.2 
2026-04-25 00:00 UT   16 21 18.3   -22 47 06     2.327    3.218  147.1    9.8   282   30.1 
2026-04-26 00:00 UT   16 20 34.2   -22 45 55     2.315    3.214  148.2    9.5   282   30.1 
2026-04-27 00:00 UT   16 19 48.6   -22 44 40     2.303    3.210  149.4    9.2   282   30.1 
2026-04-28 00:00 UT   16 19 01.7   -22 43 20     2.292    3.207  150.5    8.9   282   30.1 
2026-04-29 00:00 UT   16 18 13.5   -22 41 57     2.281    3.203  151.7    8.6   282   30.0 
2026-04-30 00:00 UT   16 17 24.0   -22 40 29     2.269    3.199  152.8    8.3   282   30.0 
2026-05-01 00:00 UT   16 16 33.1   -22 38 56     2.259    3.195  154.0    7.9   283   30.0 
2026-05-02 00:00 UT   16 15 41.0   -22 37 19     2.248    3.191  155.2    7.6   283   29.9 
2026-05-03 00:00 UT   16 14 47.7   -22 35 38     2.238    3.187  156.3    7.3   283   29.9 
2026-05-04 00:00 UT   16 13 53.2   -22 33 52     2.228    3.183  157.5    7.0   283   29.9 
2026-05-05 00:00 UT   16 12 57.5   -22 32 02     2.218    3.179  158.7    6.6   284   29.9 
2026-05-06 00:00 UT   16 12 00.7   -22 30 08     2.209    3.175  159.9    6.3   284   29.8 
2026-05-07 00:00 UT   16 11 02.8   -22 28 08     2.199    3.171  161.1    5.9   284   29.8 
2026-05-08 00:00 UT   16 10 03.8   -22 26 05     2.190    3.167  162.3    5.6   285   29.8 
2026-05-09 00:00 UT   16 09 03.9   -22 23 57     2.182    3.162  163.5    5.2   285   29.7 
2026-05-10 00:00 UT   16 08 02.9   -22 21 44     2.173    3.158  164.7    4.8   286   29.7 
2026-05-11 00:00 UT   16 07 01.0   -22 19 27     2.165    3.154  165.9    4.5   286   29.7 
2026-05-12 00:00 UT   16 05 58.2   -22 17 06     2.158    3.150  167.1    4.1   287   29.7 
2026-05-13 00:00 UT   16 04 54.6   -22 14 40     2.150    3.146  168.3    3.7   288   29.6 
2026-05-14 00:00 UT   16 03 50.2   -22 12 10     2.143    3.142  169.5    3.4   289   29.6 
2026-05-15 00:00 UT   16 02 45.1   -22 09 36     2.136    3.138  170.7    3.0   290   29.6 
2026-05-16 00:00 UT   16 01 39.3   -22 06 58     2.129    3.133  171.9    2.6   291   29.5 
2026-05-17 00:00 UT   16 00 32.9   -22 04 15     2.123    3.129  173.1    2.2   293   29.5 
2026-05-18 00:00 UT   15 59 25.9   -22 01 29     2.117    3.125  174.3    1.8   296   29.4 
2026-05-19 00:00 UT   15 58 18.4   -21 58 39     2.111    3.121  175.5    1.5   300   29.4 
2026-05-20 00:00 UT   15 57 10.5   -21 55 45     2.106    3.117  176.6    1.1   307   29.4 
2026-05-21 00:00 UT   15 56 02.2   -21 52 48     2.101    3.112  177.7    0.8   320   29.3 
2026-05-22 00:00 UT   15 54 53.6   -21 49 47     2.096    3.108  178.4    0.5   350   29.3 

    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.