(54) Alexandra
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	20 Oct 2026	13.7	2.900 AU	3.798 AU	12h08m	-07°52'	22.1°	7.4°
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
2026-10-20 00:00 UT   12 08 16.2   -07 52 43     3.798    2.900   22.1    7.4   278   13.7 
2026-10-20 17:25 UT   12 09 16.5   -08 00 37     3.793    2.898   22.5    7.6   278   13.7 
2026-10-21 00:00 UT   12 09 39.3   -08 03 36     3.791    2.898   22.7    7.6   278   13.7 
2026-10-22 00:00 UT   12 11 02.4   -08 14 29     3.783    2.896   23.3    7.8   278   13.7 
2026-10-23 00:00 UT   12 12 25.5   -08 25 23     3.776    2.894   23.9    8.0   279   13.7 
2026-10-24 00:00 UT   12 13 48.5   -08 36 18     3.768    2.892   24.5    8.2   279   13.7 
2026-10-25 00:00 UT   12 15 11.6   -08 47 13     3.761    2.890   25.1    8.4   279   13.7 
2026-10-26 00:00 UT   12 16 34.6   -08 58 09     3.753    2.889   25.6    8.6   280   13.7 
2026-10-27 00:00 UT   12 17 57.6   -09 09 05     3.745    2.887   26.2    8.8   280   13.7 
2026-10-28 00:00 UT   12 19 20.6   -09 20 02     3.736    2.885   26.8    8.9   280   13.7 
2026-10-29 00:00 UT   12 20 43.5   -09 30 59     3.728    2.883   27.4    9.1   280   13.7 
2026-10-30 00:00 UT   12 22 06.5   -09 41 56     3.720    2.881   28.0    9.3   281   13.7 
2026-10-31 00:00 UT   12 23 29.4   -09 52 54     3.711    2.879   28.6    9.5   281   13.7 
2026-11-01 00:00 UT   12 24 52.3   -10 03 52     3.703    2.877   29.2    9.7   281   13.7 
2026-11-02 00:00 UT   12 26 15.2   -10 14 51     3.694    2.876   29.8    9.9   281   13.7 
2026-11-03 00:00 UT   12 27 38.0   -10 25 50     3.685    2.874   30.4   10.1   282   13.7 
2026-11-04 00:00 UT   12 29 00.8   -10 36 49     3.676    2.872   31.0   10.3   282   13.7 
2026-11-05 00:00 UT   12 30 23.6   -10 47 49     3.667    2.870   31.6   10.4   282   13.7 
2026-11-06 00:00 UT   12 31 46.3   -10 58 48     3.657    2.868   32.3   10.6   282   13.7 
2026-11-07 00:00 UT   12 33 08.9   -11 09 48     3.648    2.866   32.9   10.8   282   13.7 
2026-11-08 00:00 UT   12 34 31.5   -11 20 48     3.638    2.864   33.5   11.0   283   13.7 
2026-11-09 00:00 UT   12 35 54.1   -11 31 48     3.629    2.862   34.1   11.2   283   13.7 
2026-11-10 00:00 UT   12 37 16.6   -11 42 48     3.619    2.860   34.7   11.4   283   13.7 
2026-11-11 00:00 UT   12 38 39.0   -11 53 48     3.609    2.859   35.3   11.5   283   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.