(612098) 1999 RM45
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	25 Jun 2026	25.3	2.634 AU	3.502 AU	04h28m	+13°45'	26.7°	10.0°

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
2026-06-25 00:00 UT   04 28 01.8   +13 45 12     3.502    2.634   26.7   10.0   245   25.3 
2026-06-25 21:25 UT   04 29 18.0   +13 46 58     3.498    2.636   27.3   10.2   245   25.3 
2026-06-26 00:00 UT   04 29 27.2   +13 47 10     3.498    2.637   27.3   10.2   245   25.3 
2026-06-27 00:00 UT   04 30 52.3   +13 49 05     3.494    2.639   27.9   10.4   246   25.3 
2026-06-28 00:00 UT   04 32 17.2   +13 50 54     3.490    2.642   28.5   10.6   246   25.3 
2026-06-29 00:00 UT   04 33 41.9   +13 52 39     3.486    2.644   29.1   10.8   247   25.3 
2026-06-30 00:00 UT   04 35 06.2   +13 54 19     3.482    2.647   29.7   11.0   247   25.3 
2026-07-01 00:00 UT   04 36 30.4   +13 55 55     3.477    2.649   30.3   11.2   248   25.3 
2026-07-02 00:00 UT   04 37 54.2   +13 57 26     3.473    2.652   30.9   11.3   248   25.3 
2026-07-03 00:00 UT   04 39 17.7   +13 58 53     3.468    2.654   31.5   11.5   249   25.3 
2026-07-04 00:00 UT   04 40 41.0   +14 00 15     3.463    2.657   32.0   11.7   249   25.4 
2026-07-05 00:00 UT   04 42 04.0   +14 01 32     3.458    2.659   32.6   11.9   249   25.4 
2026-07-06 00:00 UT   04 43 26.7   +14 02 45     3.453    2.661   33.2   12.1   250   25.4 
2026-07-07 00:00 UT   04 44 49.1   +14 03 53     3.447    2.664   33.8   12.3   250   25.4 
2026-07-08 00:00 UT   04 46 11.3   +14 04 57     3.442    2.666   34.5   12.5   251   25.4 
2026-07-09 00:00 UT   04 47 33.1   +14 05 56     3.436    2.668   35.1   12.6   251   25.4 
2026-07-10 00:00 UT   04 48 54.6   +14 06 50     3.430    2.671   35.7   12.8   251   25.4 
2026-07-11 00:00 UT   04 50 15.7   +14 07 40     3.424    2.673   36.3   13.0   252   25.4 
2026-07-12 00:00 UT   04 51 36.6   +14 08 25     3.418    2.675   36.9   13.2   252   25.4 
2026-07-13 00:00 UT   04 52 57.1   +14 09 06     3.411    2.677   37.5   13.4   252   25.4 
2026-07-14 00:00 UT   04 54 17.3   +14 09 42     3.405    2.679   38.1   13.5   253   25.4 
2026-07-15 00:00 UT   04 55 37.1   +14 10 14     3.398    2.681   38.7   13.7   253   25.4 
2026-07-16 00:00 UT   04 56 56.6   +14 10 41     3.391    2.684   39.3   13.9   253   25.4 
2026-07-17 00:00 UT   04 58 15.7   +14 11 03     3.384    2.686   40.0   14.1   254   25.4 
2026-07-18 00:00 UT   04 59 34.4   +14 11 21     3.377    2.688   40.6   14.2   254   25.4 
2026-07-19 00:00 UT   05 00 52.8   +14 11 35     3.369    2.690   41.2   14.4   254   25.4 
2026-07-20 00:00 UT   05 02 10.8   +14 11 44     3.362    2.692   41.8   14.6   255   25.4 

    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.