(82) Alkmene
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	3 Jun 2026	13.1	2.178 AU	2.487 AU	09h03m	+18°45'	60.7°	24.0°
Opposition	2 Jun 2027	12.1	2.906 AU	1.893 AU	16h39m	-25°18'	176.8°	1.1°

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 Alkmene are:

            e (Eccentricity)                : 0.2211034
            a (Semimajor axis)              : 2.7639715
            i (Inclination)                 : 2.82513
            Ω (Longitude of ascending node) : 25.40943
            ω (Argument of perihelion)      : 110.71944
            M (Mean anomaly)                : 331.29883
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : -43.84806
            B (Latitude of perihelion)      : 2.64228
            P (Orbital period in years)     : 4.60            
        

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
2026-06-03 00:00 UT   09 03 10.9   +18 45 24     2.487    2.178   60.7   24.0   106   13.1 
2026-06-03 09:48 UT   09 03 56.6   +18 41 45     2.491    2.178   60.5   23.9   106   13.1 
2026-06-04 00:00 UT   09 05 02.9   +18 36 26     2.497    2.179   60.2   23.8   106   13.1 
2026-06-05 00:00 UT   09 06 55.0   +18 27 23     2.507    2.180   59.7   23.7   106   13.1 
2026-06-06 00:00 UT   09 08 47.2   +18 18 16     2.518    2.181   59.2   23.6   106   13.1 
2026-06-07 00:00 UT   09 10 39.5   +18 09 04     2.528    2.181   58.7   23.4   106   13.1 
2026-06-08 00:00 UT   09 12 31.9   +17 59 48     2.538    2.182   58.3   23.3   106   13.1 
2026-06-09 00:00 UT   09 14 24.4   +17 50 27     2.548    2.183   57.8   23.2   106   13.1 
2026-06-10 00:00 UT   09 16 17.0   +17 41 02     2.559    2.184   57.3   23.0   106   13.1 
2026-06-11 00:00 UT   09 18 09.7   +17 31 32     2.569    2.185   56.8   22.9   106   13.1 
2026-06-12 00:00 UT   09 20 02.5   +17 21 57     2.579    2.186   56.3   22.7   107   13.1 
2026-06-13 00:00 UT   09 21 55.3   +17 12 19     2.589    2.187   55.9   22.6   107   13.1 
2026-06-14 00:00 UT   09 23 48.3   +17 02 35     2.599    2.188   55.4   22.5   107   13.1 
2026-06-15 00:00 UT   09 25 41.3   +16 52 48     2.609    2.189   54.9   22.3   107   13.1 
2026-06-16 00:00 UT   09 27 34.3   +16 42 56     2.619    2.190   54.4   22.2   107   13.1 
2026-06-17 00:00 UT   09 29 27.5   +16 33 00     2.629    2.191   54.0   22.0   107   13.1 
2026-06-18 00:00 UT   09 31 20.6   +16 23 00     2.639    2.192   53.5   21.9   107   13.1 
2026-06-19 00:00 UT   09 33 13.8   +16 12 56     2.649    2.193   53.0   21.7   107   13.1 
2026-06-20 00:00 UT   09 35 07.1   +16 02 48     2.658    2.194   52.5   21.6   107   13.1 

    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.