2020 RN1
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	12 Dec 2025	31.9	3.677 AU	4.179 AU	13h37m	-10°54'	53.4°	12.4°

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 2020 RN1 are:

            e (Eccentricity)                : 0.5855265
            a (Semimajor axis)              : 2.3833665
            i (Inclination)                 : 3.40867
            Ω (Longitude of ascending node) : 359.59859
            ω (Argument of perihelion)      : 25.83129
            M (Mean anomaly)                : 139.82797
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 25.39011
            B (Latitude of perihelion)      : 1.48453
            P (Orbital period in years)     : 3.68            
        

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
2025-12-12 00:00 UT   13 37 06.3   -10 54 38     4.179    3.677   53.4   12.4   291   31.9 
2025-12-12 16:43 UT   13 37 39.9   -10 58 09     4.171    3.678   53.9   12.5   291   31.9 
2025-12-13 00:00 UT   13 37 54.5   -10 59 41     4.167    3.679   54.2   12.5   291   31.9 
2025-12-14 00:00 UT   13 38 42.2   -11 04 41     4.156    3.681   55.0   12.7   291   31.9 
2025-12-15 00:00 UT   13 39 29.4   -11 09 38     4.144    3.682   55.8   12.8   291   31.9 
2025-12-16 00:00 UT   13 40 16.2   -11 14 31     4.133    3.684   56.6   12.9   291   31.9 
2025-12-17 00:00 UT   13 41 02.4   -11 19 22     4.121    3.685   57.4   13.0   291   31.9 
2025-12-18 00:00 UT   13 41 48.2   -11 24 09     4.109    3.687   58.2   13.1   291   31.9 
2025-12-19 00:00 UT   13 42 33.4   -11 28 53     4.096    3.688   59.0   13.2   291   31.9 
2025-12-20 00:00 UT   13 43 18.1   -11 33 34     4.084    3.690   59.9   13.3   291   31.9 
2025-12-21 00:00 UT   13 44 02.2   -11 38 11     4.072    3.691   60.7   13.4   290   31.9 
2025-12-22 00:00 UT   13 44 45.8   -11 42 45     4.059    3.693   61.5   13.5   290   31.9 
2025-12-23 00:00 UT   13 45 28.8   -11 47 16     4.046    3.694   62.3   13.6   290   31.9 
2025-12-24 00:00 UT   13 46 11.2   -11 51 43     4.034    3.695   63.2   13.7   290   31.9 
2025-12-25 00:00 UT   13 46 53.1   -11 56 07     4.021    3.697   64.0   13.8   290   31.9 
2025-12-26 00:00 UT   13 47 34.3   -12 00 27     4.008    3.698   64.8   13.9   290   31.9 
2025-12-27 00:00 UT   13 48 15.0   -12 04 43     3.995    3.700   65.7   14.0   290   31.8 
2025-12-28 00:00 UT   13 48 55.0   -12 08 56     3.981    3.701   66.5   14.1   290   31.8 
2025-12-29 00:00 UT   13 49 34.4   -12 13 05     3.968    3.702   67.4   14.2   290   31.8 
2025-12-30 00:00 UT   13 50 13.1   -12 17 11     3.954    3.704   68.2   14.3   290   31.8 
2025-12-31 00:00 UT   13 50 51.2   -12 21 13     3.941    3.705   69.1   14.4   290   31.8 
2026-01-01 00:00 UT   13 51 28.7   -12 25 11     3.927    3.707   69.9   14.4   290   31.8 
2026-01-02 00:00 UT   13 52 05.5   -12 29 05     3.914    3.708   70.8   14.5   290   31.8 
2026-01-03 00:00 UT   13 52 41.6   -12 32 55     3.900    3.709   71.6   14.6   290   31.8 
2026-01-04 00:00 UT   13 53 17.0   -12 36 42     3.886    3.710   72.5   14.6   290   31.8 
2026-01-05 00:00 UT   13 53 51.7   -12 40 25     3.872    3.712   73.4   14.7   290   31.8 
2026-01-06 00:00 UT   13 54 25.7   -12 44 04     3.858    3.713   74.2   14.8   290   31.8 
2026-01-07 00:00 UT   13 54 59.0   -12 47 39     3.844    3.714   75.1   14.8   290   31.8 
2026-01-08 00:00 UT   13 55 31.5   -12 51 10     3.829    3.716   76.0   14.9   290   31.8 
2026-01-09 00:00 UT   13 56 03.3   -12 54 36     3.815    3.717   76.8   14.9   290   31.8 
2026-01-10 00:00 UT   13 56 34.4   -12 57 59     3.801    3.718   77.7   15.0   290   31.8 
2026-01-11 00:00 UT   13 57 04.6   -13 01 18     3.786    3.719   78.6   15.0   290   31.8 

    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.