(612098) 1999 RM45
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	21 Aug 2026	25.4	2.742 AU	3.048 AU	05h39m	+13°38'	63.0°	19.2°

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 1999 RM45 are:

            e (Eccentricity)                : 0.6446923
            a (Semimajor axis)              : 1.6832557
            i (Inclination)                 : 10.89140
            Ω (Longitude of ascending node) : 162.56829
            ω (Argument of perihelion)      : 89.00798
            M (Mean anomaly)                : 35.89942
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 251.55808
            B (Latitude of perihelion)      : 10.88975
            P (Orbital period in years)     : 2.18            
        

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
2026-08-21 00:00 UT   05 39 41.0   +13 38 12     3.048    2.742   63.0   19.2   263   25.4 
2026-08-21 02:09 UT   05 39 46.5   +13 38 00     3.047    2.742   63.1   19.2   263   25.4 
2026-08-22 00:00 UT   05 40 42.0   +13 35 60     3.036    2.743   63.7   19.3   263   25.4 
2026-08-23 00:00 UT   05 41 42.3   +13 33 44     3.024    2.744   64.5   19.4   263   25.4 
2026-08-24 00:00 UT   05 42 41.9   +13 31 24     3.012    2.745   65.2   19.5   264   25.4 
2026-08-25 00:00 UT   05 43 40.8   +13 29 01     3.000    2.746   65.9   19.6   264   25.4 
2026-08-26 00:00 UT   05 44 39.0   +13 26 33     2.987    2.747   66.6   19.7   264   25.4 
2026-08-27 00:00 UT   05 45 36.4   +13 24 02     2.975    2.748   67.3   19.8   264   25.4 
2026-08-28 00:00 UT   05 46 33.1   +13 21 27     2.962    2.749   68.0   19.9   265   25.4 
2026-08-29 00:00 UT   05 47 29.1   +13 18 48     2.950    2.750   68.8   20.0   265   25.4 
2026-08-30 00:00 UT   05 48 24.3   +13 16 06     2.937    2.751   69.5   20.1   265   25.4 
2026-08-31 00:00 UT   05 49 18.7   +13 13 19     2.924    2.752   70.2   20.2   265   25.4 
2026-09-01 00:00 UT   05 50 12.4   +13 10 29     2.911    2.753   71.0   20.3   265   25.3 
2026-09-02 00:00 UT   05 51 05.2   +13 07 36     2.898    2.754   71.7   20.4   266   25.3 
2026-09-03 00:00 UT   05 51 57.2   +13 04 38     2.885    2.755   72.4   20.4   266   25.3 
2026-09-04 00:00 UT   05 52 48.4   +13 01 37     2.872    2.755   73.2   20.5   266   25.3 
2026-09-05 00:00 UT   05 53 38.7   +12 58 32     2.859    2.756   73.9   20.6   266   25.3 
2026-09-06 00:00 UT   05 54 28.2   +12 55 24     2.846    2.757   74.7   20.7   267   25.3 
2026-09-07 00:00 UT   05 55 16.8   +12 52 12     2.832    2.758   75.5   20.7   267   25.3 
2026-09-08 00:00 UT   05 56 04.4   +12 48 57     2.819    2.758   76.2   20.8   267   25.3 
2026-09-09 00:00 UT   05 56 51.2   +12 45 38     2.805    2.759   77.0   20.8   267   25.3 
2026-09-10 00:00 UT   05 57 37.0   +12 42 16     2.792    2.760   77.8   20.9   267   25.3 
2026-09-11 00:00 UT   05 58 21.9   +12 38 50     2.778    2.760   78.5   20.9   268   25.3 
2026-09-12 00:00 UT   05 59 05.8   +12 35 21     2.764    2.761   79.3   21.0   268   25.3 
2026-09-13 00:00 UT   05 59 48.7   +12 31 48     2.751    2.762   80.1   21.0   268   25.3 
2026-09-14 00:00 UT   06 00 30.6   +12 28 13     2.737    2.762   80.9   21.1   268   25.2 
2026-09-15 00:00 UT   06 01 11.5   +12 24 34     2.723    2.763   81.7   21.1   268   25.2 
2026-09-16 00:00 UT   06 01 51.3   +12 20 52     2.709    2.763   82.5   21.1   269   25.2 
2026-09-17 00:00 UT   06 02 30.1   +12 17 07     2.695    2.764   83.3   21.2   269   25.2 
2026-09-18 00:00 UT   06 03 07.9   +12 13 19     2.681    2.764   84.1   21.2   269   25.2 
2026-09-19 00:00 UT   06 03 44.5   +12 09 28     2.667    2.765   84.9   21.2   269   25.2 
2026-09-20 00:00 UT   06 04 20.1   +12 05 34     2.653    2.765   85.7   21.2   270   25.2 

    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.