(409) Aspasia
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	11 Jun 2026	11.3	2.430 AU	1.528 AU	19h32m	-10°28'	144.9°	13.9°
Opposition	9 Jul 2026	10.8	2.446 AU	1.447 AU	19h09m	-08°39'	166.3°	5.7°

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 Aspasia are:

            e (Eccentricity)                : 0.0733205
            a (Semimajor axis)              : 2.5751467
            i (Inclination)                 : 11.28516
            Ω (Longitude of ascending node) : 242.05252
            ω (Argument of perihelion)      : 355.72820
            M (Mean anomaly)                : 348.92718
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 237.86302
            B (Latitude of perihelion)      : -0.83521
            P (Orbital period in years)     : 4.13            
        

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
2026-06-11 00:00 UT   19 32 41.9   -10 28 27     1.528    2.430  144.9   13.9   245   11.3 
2026-06-11 04:52 UT   19 32 35.0   -10 27 19     1.527    2.430  145.1   13.8   244   11.3 
2026-06-12 00:00 UT   19 32 07.3   -10 22 56     1.522    2.431  145.9   13.5   244   11.3 
2026-06-13 00:00 UT   19 31 31.2   -10 17 31     1.516    2.431  146.9   13.2   243   11.3 
2026-06-14 00:00 UT   19 30 53.7   -10 12 13     1.511    2.432  147.9   12.8   242   11.2 
2026-06-15 00:00 UT   19 30 14.7   -10 07 01     1.505    2.432  148.9   12.5   241   11.2 
2026-06-16 00:00 UT   19 29 34.4   -10 01 56     1.500    2.433  149.8   12.1   240   11.2 
2026-06-17 00:00 UT   19 28 52.7   -09 56 58     1.495    2.433  150.8   11.7   239   11.2 
2026-06-18 00:00 UT   19 28 09.7   -09 52 06     1.491    2.434  151.8   11.4   238   11.1 
2026-06-19 00:00 UT   19 27 25.5   -09 47 22     1.486    2.434  152.8   11.0   237   11.1 
2026-06-20 00:00 UT   19 26 40.1   -09 42 45     1.482    2.435  153.7   10.6   236   11.1 
2026-06-21 00:00 UT   19 25 53.5   -09 38 16     1.478    2.436  154.7   10.3   234   11.1 
2026-06-22 00:00 UT   19 25 05.9   -09 33 54     1.474    2.436  155.6    9.9   233   11.1 
2026-06-23 00:00 UT   19 24 17.2   -09 29 39     1.471    2.437  156.5    9.6   231   11.1 
2026-06-24 00:00 UT   19 23 27.6   -09 25 32     1.467    2.437  157.4    9.2   229   11.0 
2026-06-25 00:00 UT   19 22 37.0   -09 21 33     1.464    2.438  158.3    8.9   228   11.0 
2026-06-26 00:00 UT   19 21 45.6   -09 17 42     1.461    2.438  159.2    8.5   225   11.0 
2026-06-27 00:00 UT   19 20 53.3   -09 13 59     1.459    2.439  160.0    8.2   223   11.0 
2026-06-28 00:00 UT   19 20 00.4   -09 10 24     1.456    2.440  160.9    7.9   221   11.0 
2026-06-29 00:00 UT   19 19 06.7   -09 06 56     1.454    2.440  161.6    7.5   218   10.9 
2026-06-30 00:00 UT   19 18 12.4   -09 03 37     1.452    2.441  162.4    7.2   215   10.9 
2026-07-01 00:00 UT   19 17 17.6   -09 00 27     1.451    2.441  163.1    7.0   212   10.9 
2026-07-02 00:00 UT   19 16 22.2   -08 57 25     1.449    2.442  163.7    6.7   209   10.9 
2026-07-03 00:00 UT   19 15 26.5   -08 54 31     1.448    2.442  164.3    6.5   205   10.9 
2026-07-04 00:00 UT   19 14 30.3   -08 51 45     1.447    2.443  164.8    6.2   201   10.9 
2026-07-05 00:00 UT   19 13 33.9   -08 49 08     1.447    2.444  165.3    6.1   197   10.9 
2026-07-06 00:00 UT   19 12 37.2   -08 46 40     1.446    2.444  165.7    5.9   193   10.9 
2026-07-07 00:00 UT   19 11 40.4   -08 44 20     1.446    2.445  165.9    5.8   188   10.9 
2026-07-08 00:00 UT   19 10 43.5   -08 42 09     1.446    2.445  166.1    5.7   183   10.8 
2026-07-09 00:00 UT   19 09 46.6   -08 40 06     1.447    2.446  166.2    5.7   178   10.8 
2026-07-10 00:00 UT   19 08 49.7   -08 38 12     1.447    2.447  166.2    5.7   173   10.9 
2026-07-11 00:00 UT   19 07 52.9   -08 36 27     1.448    2.447  166.1    5.7   169   10.9 

    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.