(409) Aspasia
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	10 Apr 2026	12.4	2.403 AU	2.151 AU	19h14m	-17°41'	91.9°	24.6°
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
2026-04-10 00:00 UT   19 14 59.8   -17 41 01     2.151    2.403   91.9   24.6   262   12.4 
2026-04-10 19:39 UT   19 15 51.1   -17 35 20     2.142    2.403   92.5   24.6   262   12.3 
2026-04-11 00:00 UT   19 16 02.3   -17 34 04     2.139    2.403   92.6   24.6   262   12.3 
2026-04-12 00:00 UT   19 17 03.6   -17 27 05     2.127    2.403   93.3   24.6   262   12.3 
2026-04-13 00:00 UT   19 18 03.7   -17 20 04     2.115    2.404   94.0   24.6   262   12.3 
2026-04-14 00:00 UT   19 19 02.5   -17 13 01     2.103    2.404   94.8   24.6   262   12.3 
2026-04-15 00:00 UT   19 20 00.1   -17 05 55     2.091    2.404   95.5   24.5   262   12.3 
2026-04-16 00:00 UT   19 20 56.4   -16 58 48     2.079    2.405   96.2   24.5   262   12.3 
2026-04-17 00:00 UT   19 21 51.4   -16 51 38     2.067    2.405   97.0   24.5   261   12.3 
2026-04-18 00:00 UT   19 22 45.1   -16 44 27     2.055    2.406   97.7   24.4   261   12.3 
2026-04-19 00:00 UT   19 23 37.4   -16 37 15     2.043    2.406   98.5   24.4   261   12.2 
2026-04-20 00:00 UT   19 24 28.4   -16 30 00     2.032    2.406   99.2   24.3   261   12.2 
2026-04-21 00:00 UT   19 25 18.1   -16 22 44     2.020    2.407  100.0   24.3   261   12.2 
2026-04-22 00:00 UT   19 26 06.4   -16 15 27     2.008    2.407  100.7   24.2   260   12.2 
2026-04-23 00:00 UT   19 26 53.3   -16 08 09     1.996    2.407  101.5   24.2   260   12.2 
2026-04-24 00:00 UT   19 27 38.8   -16 00 50     1.984    2.408  102.3   24.1   260   12.2 
2026-04-25 00:00 UT   19 28 22.9   -15 53 29     1.973    2.408  103.0   24.0   260   12.2 
2026-04-26 00:00 UT   19 29 05.6   -15 46 08     1.961    2.409  103.8   23.9   260   12.1 
2026-04-27 00:00 UT   19 29 46.8   -15 38 45     1.950    2.409  104.6   23.8   260   12.1 
2026-04-28 00:00 UT   19 30 26.7   -15 31 22     1.938    2.409  105.4   23.8   259   12.1 
2026-04-29 00:00 UT   19 31 05.0   -15 23 59     1.927    2.410  106.2   23.7   259   12.1 
2026-04-30 00:00 UT   19 31 41.9   -15 16 35     1.915    2.410  107.0   23.6   259   12.1 
2026-05-01 00:00 UT   19 32 17.2   -15 09 10     1.904    2.411  107.8   23.4   259   12.1 
2026-05-02 00:00 UT   19 32 51.1   -15 01 46     1.893    2.411  108.6   23.3   259   12.0 
2026-05-03 00:00 UT   19 33 23.4   -14 54 21     1.881    2.411  109.4   23.2   258   12.0 
2026-05-04 00:00 UT   19 33 54.2   -14 46 56     1.870    2.412  110.2   23.1   258   12.0 
2026-05-05 00:00 UT   19 34 23.5   -14 39 31     1.859    2.412  111.0   23.0   258   12.0 
2026-05-06 00:00 UT   19 34 51.1   -14 32 06     1.848    2.413  111.9   22.8   258   12.0 
2026-05-07 00:00 UT   19 35 17.2   -14 24 42     1.837    2.413  112.7   22.7   258   12.0 
2026-05-08 00:00 UT   19 35 41.7   -14 17 18     1.826    2.414  113.5   22.5   257   12.0 
2026-05-09 00:00 UT   19 36 04.6   -14 09 55     1.816    2.414  114.4   22.4   257   11.9 
2026-05-10 00:00 UT   19 36 25.8   -14 02 33     1.805    2.414  115.2   22.2   257   11.9 

    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.