(612098) 1999 RM45
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	21 Apr 2026	24.8	2.404 AU	3.368 AU	02h49m	+08°52'	13.9°	5.8°

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 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
2026-04-21 00:00 UT   02 49 03.6   +08 52 47     3.368    2.404   13.9    5.8   103   24.8 
2026-04-21 08:55 UT   02 49 39.2   +08 55 21     3.370    2.406   13.7    5.7   103   24.8 
2026-04-22 00:00 UT   02 50 39.2   +08 59 40     3.375    2.409   13.4    5.6   104   24.8 
2026-04-23 00:00 UT   02 52 14.7   +09 06 28     3.382    2.413   12.9    5.4   106   24.8 
2026-04-24 00:00 UT   02 53 50.1   +09 13 12     3.390    2.418   12.5    5.2   107   24.8 
2026-04-25 00:00 UT   02 55 25.4   +09 19 52     3.397    2.422   12.0    5.0   109   24.8 
2026-04-26 00:00 UT   02 57 00.6   +09 26 27     3.404    2.426   11.6    4.8   111   24.8 
2026-04-27 00:00 UT   02 58 35.6   +09 32 58     3.410    2.431   11.1    4.6   113   24.8 
2026-04-28 00:00 UT   03 00 10.6   +09 39 25     3.417    2.435   10.7    4.4   115   24.8 
2026-04-29 00:00 UT   03 01 45.4   +09 45 47     3.423    2.439   10.3    4.2   117   24.8 
2026-04-30 00:00 UT   03 03 20.1   +09 52 05     3.429    2.443    9.9    4.1   119   24.8 
2026-05-01 00:00 UT   03 04 54.7   +09 58 19     3.435    2.448    9.5    3.9   122   24.8 
2026-05-02 00:00 UT   03 06 29.1   +10 04 28     3.441    2.452    9.2    3.8   125   24.8 
2026-05-03 00:00 UT   03 08 03.5   +10 10 33     3.447    2.456    8.8    3.6   128   24.8 
2026-05-04 00:00 UT   03 09 37.8   +10 16 34     3.452    2.460    8.5    3.5   131   24.8 
2026-05-05 00:00 UT   03 11 11.9   +10 22 30     3.458    2.464    8.2    3.4   135   24.8 
2026-05-06 00:00 UT   03 12 45.9   +10 28 21     3.463    2.468    8.0    3.3   138   24.8 
2026-05-07 00:00 UT   03 14 19.8   +10 34 09     3.468    2.472    7.8    3.2   142   24.8 
2026-05-08 00:00 UT   03 15 53.6   +10 39 52     3.473    2.476    7.6    3.1   146   24.8 
2026-05-09 00:00 UT   03 17 27.3   +10 45 30     3.478    2.480    7.4    3.0   151   24.8 
2026-05-10 00:00 UT   03 19 00.9   +10 51 04     3.482    2.484    7.3    3.0   155   24.8 
2026-05-11 00:00 UT   03 20 34.3   +10 56 34     3.486    2.488    7.2    2.9   160   24.8 
2026-05-12 00:00 UT   03 22 07.6   +11 01 59     3.491    2.492    7.2    2.9   164   24.8 

    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.