(612098) 1999 RM45
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	4 Jun 2026	25.1	2.573 AU	3.538 AU	03h57m	+12°45'	15.1°	5.9°

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
2026-06-04 00:00 UT   03 57 16.3   +12 45 48     3.538    2.573   15.1    5.9   229   25.1 
2026-06-04 19:02 UT   03 58 27.6   +12 48 39     3.538    2.575   15.5    6.1   230   25.1 
2026-06-05 00:00 UT   03 58 46.2   +12 49 24     3.538    2.576   15.7    6.1   230   25.1 
2026-06-06 00:00 UT   04 00 15.8   +12 52 55     3.538    2.579   16.2    6.3   231   25.1 
2026-06-07 00:00 UT   04 01 45.3   +12 56 22     3.538    2.582   16.7    6.5   232   25.1 
2026-06-08 00:00 UT   04 03 14.6   +12 59 44     3.537    2.585   17.2    6.7   233   25.1 
2026-06-09 00:00 UT   04 04 43.7   +13 03 02     3.536    2.589   17.8    6.9   234   25.1 
2026-06-10 00:00 UT   04 06 12.6   +13 06 15     3.536    2.592   18.3    7.1   235   25.2 
2026-06-11 00:00 UT   04 07 41.4   +13 09 23     3.535    2.595   18.9    7.3   236   25.2 
2026-06-12 00:00 UT   04 09 09.9   +13 12 27     3.533    2.598   19.4    7.5   237   25.2 
2026-06-13 00:00 UT   04 10 38.3   +13 15 26     3.532    2.601   19.9    7.7   238   25.2 
2026-06-14 00:00 UT   04 12 06.5   +13 18 20     3.530    2.603   20.5    7.9   238   25.2 
2026-06-15 00:00 UT   04 13 34.4   +13 21 10     3.529    2.606   21.1    8.0   239   25.2 
2026-06-16 00:00 UT   04 15 02.2   +13 23 55     3.527    2.609   21.6    8.2   240   25.2 
2026-06-17 00:00 UT   04 16 29.7   +13 26 35     3.525    2.612   22.2    8.4   240   25.2 
2026-06-18 00:00 UT   04 17 57.0   +13 29 11     3.522    2.615   22.7    8.6   241   25.2 
2026-06-19 00:00 UT   04 19 24.1   +13 31 42     3.520    2.618   23.3    8.8   242   25.2 
2026-06-20 00:00 UT   04 20 51.0   +13 34 09     3.517    2.621   23.9    9.0   242   25.3 
2026-06-21 00:00 UT   04 22 17.6   +13 36 31     3.514    2.623   24.4    9.2   243   25.3 
2026-06-22 00:00 UT   04 23 44.0   +13 38 48     3.511    2.626   25.0    9.4   243   25.3 
2026-06-23 00:00 UT   04 25 10.2   +13 41 00     3.508    2.629   25.6    9.6   244   25.3 
2026-06-24 00:00 UT   04 26 36.1   +13 43 08     3.505    2.631   26.2    9.8   244   25.3 
2026-06-25 00:00 UT   04 28 01.8   +13 45 12     3.502    2.634   26.7   10.0   245   25.3 
2026-06-26 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 

    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.