(54) Alexandra
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	22 Sep 2026	13.5	2.949 AU	3.942 AU	11h29m	-02°54'	7.2°	2.5°
Opposition	1 May 2027	11.4	2.505 AU	1.533 AU	14h04m	-33°28'	160.4°	7.7°

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 Alexandra are:

            e (Eccentricity)                : 0.1991502
            a (Semimajor axis)              : 2.7102403
            i (Inclination)                 : 11.83626
            Ω (Longitude of ascending node) : 313.01339
            ω (Argument of perihelion)      : 346.35813
            M (Mean anomaly)                : 230.77822
            Epoch                           : 2026 Jun 09

            L (Longitude of perihelion)     : 299.65107
            B (Latitude of perihelion)      : -2.77288
            P (Orbital period in years)     : 4.46            
        

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
2026-09-22 00:00 UT   11 29 34.4   -02 54 18     3.942    2.949    7.2    2.5   242   13.5 
2026-09-22 09:52 UT   11 30 08.4   -02 58 34     3.941    2.948    7.4    2.5   243   13.5 
2026-09-23 00:00 UT   11 30 56.9   -03 04 41     3.939    2.947    7.6    2.6   245   13.5 
2026-09-24 00:00 UT   11 32 19.5   -03 15 06     3.936    2.946    8.1    2.7   248   13.5 
2026-09-25 00:00 UT   11 33 42.1   -03 25 31     3.932    2.944    8.5    2.9   251   13.5 
2026-09-26 00:00 UT   11 35 04.7   -03 35 59     3.929    2.942    9.0    3.0   253   13.6 
2026-09-27 00:00 UT   11 36 27.4   -03 46 27     3.925    2.940    9.4    3.2   256   13.6 
2026-09-28 00:00 UT   11 37 50.1   -03 56 57     3.921    2.939    9.9    3.4   258   13.6 
2026-09-29 00:00 UT   11 39 12.8   -04 07 29     3.917    2.937   10.4    3.5   260   13.6 
2026-09-30 00:00 UT   11 40 35.6   -04 18 01     3.913    2.935   10.9    3.7   261   13.6 
2026-10-01 00:00 UT   11 41 58.4   -04 28 35     3.908    2.933   11.4    3.9   263   13.6 
2026-10-02 00:00 UT   11 43 21.3   -04 39 10     3.904    2.932   12.0    4.1   264   13.6 
2026-10-03 00:00 UT   11 44 44.1   -04 49 47     3.899    2.930   12.5    4.2   265   13.6 
2026-10-04 00:00 UT   11 46 07.1   -05 00 24     3.894    2.928   13.0    4.4   267   13.6 
2026-10-05 00:00 UT   11 47 30.0   -05 11 03     3.889    2.926   13.6    4.6   268   13.6 
2026-10-06 00:00 UT   11 48 53.0   -05 21 43     3.884    2.925   14.1    4.8   269   13.6 
2026-10-07 00:00 UT   11 50 16.0   -05 32 24     3.879    2.923   14.7    5.0   270   13.6 
2026-10-08 00:00 UT   11 51 39.0   -05 43 06     3.874    2.921   15.2    5.2   271   13.6 
2026-10-09 00:00 UT   11 53 02.1   -05 53 49     3.868    2.919   15.8    5.3   271   13.6 
2026-10-10 00:00 UT   11 54 25.2   -06 04 34     3.862    2.918   16.4    5.5   272   13.6 
2026-10-11 00:00 UT   11 55 48.3   -06 15 19     3.857    2.916   16.9    5.7   273   13.6 
2026-10-12 00:00 UT   11 57 11.4   -06 26 05     3.851    2.914   17.5    5.9   273   13.6 
2026-10-13 00:00 UT   11 58 34.5   -06 36 52     3.845    2.912   18.1    6.1   274   13.7 

    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.