(1685) Toro
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	7 Dec 2025	18.1	1.621 AU	2.079 AU	13h24m	-16°41'	49.5°	27.5°

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 Toro are:

            e (Eccentricity)                : 0.4360487
            a (Semimajor axis)              : 1.3678387
            i (Inclination)                 : 9.38184
            Ω (Longitude of ascending node) : 274.20774
            ω (Argument of perihelion)      : 127.27531
            M (Mean anomaly)                : 82.68163
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 221.85555
            B (Latitude of perihelion)      : 7.45314
            P (Orbital period in years)     : 1.60            
        

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
2025-12-07 00:00 UT   13 24 19.0   -16 41 10     2.079    1.621   49.5   27.5   286   18.1 
2025-12-07 03:06 UT   13 24 34.2   -16 42 58     2.078    1.622   49.5   27.5   286   18.1 
2025-12-08 00:00 UT   13 26 16.5   -16 55 07     2.075    1.626   49.9   27.6   286   18.2 
2025-12-09 00:00 UT   13 28 13.6   -17 08 57     2.071    1.631   50.4   27.7   286   18.2 
2025-12-10 00:00 UT   13 30 10.3   -17 22 42     2.067    1.636   50.9   27.9   286   18.2 
2025-12-11 00:00 UT   13 32 06.4   -17 36 21     2.063    1.641   51.4   28.0   286   18.2 
2025-12-12 00:00 UT   13 34 02.0   -17 49 54     2.059    1.645   51.9   28.1   286   18.2 
2025-12-13 00:00 UT   13 35 57.1   -18 03 21     2.054    1.650   52.4   28.2   286   18.2 
2025-12-14 00:00 UT   13 37 51.8   -18 16 42     2.050    1.655   52.9   28.3   286   18.2 
2025-12-15 00:00 UT   13 39 45.9   -18 29 57     2.045    1.659   53.4   28.5   286   18.2 
2025-12-16 00:00 UT   13 41 39.5   -18 43 07     2.041    1.664   54.0   28.6   286   18.2 
2025-12-17 00:00 UT   13 43 32.6   -18 56 10     2.036    1.669   54.5   28.7   286   18.2 
2025-12-18 00:00 UT   13 45 25.1   -19 09 07     2.031    1.673   55.0   28.8   286   18.2 
2025-12-19 00:00 UT   13 47 17.1   -19 21 59     2.026    1.678   55.5   28.9   286   18.2 
2025-12-20 00:00 UT   13 49 08.6   -19 34 45     2.020    1.682   56.0   29.0   286   18.2 
2025-12-21 00:00 UT   13 50 59.6   -19 47 24     2.015    1.686   56.6   29.1   286   18.2 
2025-12-22 00:00 UT   13 52 49.9   -19 59 58     2.010    1.691   57.1   29.2   286   18.2 
2025-12-23 00:00 UT   13 54 39.8   -20 12 26     2.004    1.695   57.6   29.4   286   18.2 
2025-12-24 00:00 UT   13 56 29.0   -20 24 48     1.999    1.699   58.2   29.5   286   18.2 

    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.