(68) Leto
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	13 May 2025	11.9	2.281 AU	3.045 AU	01h12m	+03°32'	34.2°	14.4°
Opposition	20 Nov 2025	10.0	2.524 AU	1.537 AU	03h40m	+22°51'	176.8°	1.3°

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 Leto are:

            e (Eccentricity)                : 0.1843252
            a (Semimajor axis)              : 2.7824271
            i (Inclination)                 : 7.96099
            Ω (Longitude of ascending node) : 44.04878
            ω (Argument of perihelion)      : 304.84264
            M (Mean anomaly)                : 8.23054
            Epoch                           : 2025 May 05

            L (Longitude of perihelion)     : -10.84797
            B (Latitude of perihelion)      : -6.52688
            P (Orbital period in years)     : 4.64            
        

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. A more printer-friendly version of the same chart can be found below.

Ephemerides:

Date       Time       RA (2000)    DEC (2000)    delta   radius  elong  phase   PA    magn
2025-05-13 00:00 UT   01 12 55.9   +03 32 50     3.045    2.281   34.2   14.4   242   11.9 
2025-05-13 03:16 UT   01 13 10.5   +03 34 28     3.044    2.281   34.2   14.4   242   11.9 
2025-05-14 00:00 UT   01 14 43.1   +03 44 50     3.039    2.282   34.6   14.6   242   11.9 
2025-05-15 00:00 UT   01 16 30.3   +03 56 47     3.034    2.282   35.1   14.8   242   11.9 
2025-05-16 00:00 UT   01 18 17.3   +04 08 41     3.028    2.283   35.6   14.9   243   11.9 
2025-05-17 00:00 UT   01 20 04.2   +04 20 32     3.022    2.283   36.1   15.1   243   11.9 
2025-05-18 00:00 UT   01 21 50.9   +04 32 21     3.016    2.284   36.5   15.3   243   11.9 
2025-05-19 00:00 UT   01 23 37.5   +04 44 07     3.009    2.284   37.0   15.5   243   11.9 
2025-05-20 00:00 UT   01 25 23.9   +04 55 49     3.003    2.285   37.5   15.6   243   11.9 
2025-05-21 00:00 UT   01 27 10.2   +05 07 29     2.997    2.285   38.0   15.8   243   11.9 
2025-05-22 00:00 UT   01 28 56.4   +05 19 05     2.991    2.286   38.4   16.0   244   11.9 
2025-05-23 00:00 UT   01 30 42.4   +05 30 38     2.984    2.286   38.9   16.1   244   11.9 
2025-05-24 00:00 UT   01 32 28.2   +05 42 09     2.978    2.287   39.4   16.3   244   11.9 
2025-05-25 00:00 UT   01 34 13.9   +05 53 35     2.971    2.288   39.9   16.5   244   11.9 
2025-05-26 00:00 UT   01 35 59.4   +06 04 59     2.964    2.288   40.3   16.7   244   11.9 
2025-05-27 00:00 UT   01 37 44.7   +06 16 19     2.958    2.289   40.8   16.8   245   11.9 
2025-05-28 00:00 UT   01 39 29.9   +06 27 36     2.951    2.290   41.3   17.0   245   11.9 
2025-05-29 00:00 UT   01 41 14.8   +06 38 49     2.944    2.290   41.8   17.2   245   12.0 
2025-05-30 00:00 UT   01 42 59.6   +06 49 59     2.937    2.291   42.3   17.3   245   12.0 

    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.