(409) Aspasia
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	2 Jul 2026	10.9	2.442 AU	1.449 AU	19h16m	-08°57'	163.7°	6.7°
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)                : 0.0734782
            a (Semimajor axis)              : 2.5755624
            i (Inclination)                 : 11.28422
            Ω (Longitude of ascending node) : 242.05127
            ω (Argument of perihelion)      : 355.71960
            M (Mean anomaly)                : 36.62704
            Epoch                           : 2026 Jun 09

            L (Longitude of perihelion)     : 237.85332
            B (Latitude of perihelion)      : -0.83682
            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
2026-07-02 00:00 UT   19 16 22.6   -08 57 28     1.449    2.442  163.7    6.7   209   10.9 
2026-07-02 03:30 UT   19 16 14.5   -08 57 02     1.449    2.442  163.8    6.7   208   10.9 
2026-07-03 00:00 UT   19 15 26.8   -08 54 34     1.448    2.443  164.3    6.5   205   10.9 
2026-07-04 00:00 UT   19 14 30.7   -08 51 48     1.447    2.443  164.8    6.2   201   10.9 
2026-07-05 00:00 UT   19 13 34.2   -08 49 11     1.447    2.444  165.3    6.1   197   10.9 
2026-07-06 00:00 UT   19 12 37.6   -08 46 43     1.446    2.444  165.7    5.9   193   10.9 
2026-07-07 00:00 UT   19 11 40.8   -08 44 23     1.446    2.445  166.0    5.8   188   10.9 
2026-07-08 00:00 UT   19 10 43.9   -08 42 12     1.446    2.446  166.1    5.7   183   10.9 
2026-07-09 00:00 UT   19 09 46.9   -08 40 10     1.447    2.446  166.2    5.7   178   10.8 
2026-07-10 00:00 UT   19 08 50.0   -08 38 16     1.447    2.447  166.2    5.7   174   10.9 
2026-07-11 00:00 UT   19 07 53.3   -08 36 30     1.448    2.447  166.1    5.7   169   10.9 
2026-07-12 00:00 UT   19 06 56.7   -08 34 54     1.449    2.448  166.0    5.8   164   10.9 
2026-07-13 00:00 UT   19 06 00.4   -08 33 26     1.451    2.449  165.7    5.9   159   10.9 
2026-07-14 00:00 UT   19 05 04.5   -08 32 06     1.452    2.449  165.3    6.0   155   10.9 
2026-07-15 00:00 UT   19 04 08.9   -08 30 55     1.454    2.450  164.8    6.2   151   10.9 
2026-07-16 00:00 UT   19 03 13.9   -08 29 52     1.456    2.450  164.3    6.4   147   10.9 
2026-07-17 00:00 UT   19 02 19.4   -08 28 57     1.459    2.451  163.7    6.7   143   10.9 
2026-07-18 00:00 UT   19 01 25.6   -08 28 11     1.461    2.452  163.1    6.9   140   10.9 
2026-07-19 00:00 UT   19 00 32.4   -08 27 32     1.464    2.452  162.4    7.2   137   11.0 
2026-07-20 00:00 UT   18 59 40.0   -08 27 02     1.467    2.453  161.7    7.5   134   11.0 
2026-07-21 00:00 UT   18 58 48.4   -08 26 39     1.471    2.454  160.9    7.8   131   11.0 
2026-07-22 00:00 UT   18 57 57.7   -08 26 24     1.474    2.454  160.1    8.1   129   11.0 
2026-07-23 00:00 UT   18 57 08.0   -08 26 17     1.478    2.455  159.2    8.4   126   11.0 
2026-07-24 00:00 UT   18 56 19.2   -08 26 17     1.482    2.455  158.4    8.8   124   11.1 
2026-07-25 00:00 UT   18 55 31.5   -08 26 24     1.487    2.456  157.5    9.1   122   11.1 
2026-07-26 00:00 UT   18 54 44.8   -08 26 38     1.491    2.457  156.6    9.5   121   11.1 
2026-07-27 00:00 UT   18 53 59.4   -08 26 59     1.496    2.457  155.7    9.8   119   11.1 
2026-07-28 00:00 UT   18 53 15.1   -08 27 27     1.501    2.458  154.7   10.1   117   11.1 
2026-07-29 00:00 UT   18 52 32.0   -08 28 02     1.506    2.459  153.8   10.5   116   11.2 
2026-07-30 00:00 UT   18 51 50.2   -08 28 43     1.512    2.459  152.9   10.9   115   11.2 
2026-07-31 00:00 UT   18 51 09.7   -08 29 30     1.518    2.460  151.9   11.2   113   11.2 
2026-08-01 00:00 UT   18 50 30.6   -08 30 24     1.524    2.461  150.9   11.6   112   11.2 

    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.