2021 RG19
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	16 Oct 2025	30.2	2.628 AU	2.946 AU	17h35m	-12°38'	61.9°	19.6°

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 2021 RG19 are:

            e (Eccentricity)                : 0.6846204
            a (Semimajor axis)              : 2.7457176
            i (Inclination)                 : 12.07336
            Ω (Longitude of ascending node) : 186.56681
            ω (Argument of perihelion)      : 227.64618
            M (Mean anomaly)                : 277.19740
            Epoch                           : 2025 May 05

            L (Longitude of perihelion)     : 233.57433
            B (Latitude of perihelion)      : -8.89197
            P (Orbital period in years)     : 4.55            
        

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. A more printer-friendly version of the same chart can be found below.

Ephemerides:

Date       Time       RA (2000)    DEC (2000)    delta   radius  elong  phase   PA    magn
2025-10-16 00:00 UT   17 35 31.6   -12 38 14     2.946    2.628   61.9   19.6    87   30.2 
2025-10-16 05:32 UT   17 35 46.3   -12 39 08     2.947    2.627   61.8   19.5    87   30.2 
2025-10-17 00:00 UT   17 36 35.9   -12 42 05     2.951    2.621   61.2   19.5    86   30.2 
2025-10-18 00:00 UT   17 37 41.3   -12 45 54     2.956    2.614   60.5   19.4    86   30.1 
2025-10-19 00:00 UT   17 38 47.6   -12 49 39     2.961    2.606   59.8   19.3    86   30.1 
2025-10-20 00:00 UT   17 39 54.9   -12 53 21     2.966    2.599   59.1   19.2    86   30.1 
2025-10-21 00:00 UT   17 41 03.2   -12 57 01     2.970    2.591   58.4   19.1    85   30.1 
2025-10-22 00:00 UT   17 42 12.5   -13 00 37     2.975    2.584   57.7   19.0    85   30.1 
2025-10-23 00:00 UT   17 43 22.7   -13 04 10     2.979    2.576   57.0   18.9    85   30.1 
2025-10-24 00:00 UT   17 44 33.9   -13 07 39     2.983    2.569   56.3   18.8    85   30.1 
2025-10-25 00:00 UT   17 45 46.0   -13 11 05     2.987    2.561   55.6   18.7    84   30.1 
2025-10-26 00:00 UT   17 46 59.0   -13 14 28     2.991    2.553   55.0   18.6    84   30.1 
2025-10-27 00:00 UT   17 48 13.0   -13 17 48     2.995    2.546   54.3   18.5    84   30.1 
2025-10-28 00:00 UT   17 49 27.9   -13 21 03     2.999    2.538   53.6   18.4    84   30.1 
2025-10-29 00:00 UT   17 50 43.7   -13 24 16     3.002    2.531   52.9   18.2    83   30.1 
2025-10-30 00:00 UT   17 52 00.4   -13 27 24     3.006    2.523   52.2   18.1    83   30.1 
2025-10-31 00:00 UT   17 53 18.0   -13 30 29     3.009    2.515   51.6   18.0    83   30.1 
2025-11-01 00:00 UT   17 54 36.5   -13 33 30     3.012    2.507   50.9   17.9    82   30.1 
2025-11-02 00:00 UT   17 55 55.8   -13 36 26     3.015    2.500   50.2   17.8    82   30.0 
2025-11-03 00:00 UT   17 57 16.1   -13 39 19     3.018    2.492   49.6   17.6    82   30.0 
2025-11-04 00:00 UT   17 58 37.2   -13 42 08     3.021    2.484   48.9   17.5    82   30.0 
2025-11-05 00:00 UT   17 59 59.2   -13 44 53     3.023    2.476   48.3   17.4    81   30.0 
2025-11-06 00:00 UT   18 01 22.0   -13 47 34     3.026    2.469   47.6   17.3    81   30.0 
2025-11-07 00:00 UT   18 02 45.7   -13 50 11     3.028    2.461   47.0   17.1    81   30.0 
2025-11-08 00:00 UT   18 04 10.3   -13 52 43     3.030    2.453   46.3   17.0    80   30.0 
2025-11-09 00:00 UT   18 05 35.7   -13 55 11     3.032    2.445   45.7   16.8    80   30.0 
2025-11-10 00:00 UT   18 07 01.9   -13 57 34     3.034    2.437   45.0   16.7    80   30.0 
2025-11-11 00:00 UT   18 08 29.0   -13 59 53     3.036    2.429   44.4   16.6    79   30.0 
2025-11-12 00:00 UT   18 09 57.0   -14 02 08     3.038    2.421   43.8   16.4    79   29.9 

    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.