(133) Cyrene
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	23 Mar 2026	13.9	3.303 AU	2.974 AU	06h55m	+25°27'	100.4°	17.3°
Opposition	26 Mar 2027	12.0	2.860 AU	1.869 AU	12h10m	-09°59'	171.8°	2.9°

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 Cyrene are:

            e (Eccentricity)                : 0.1302969
            a (Semimajor axis)              : 3.0741951
            i (Inclination)                 : 7.22452
            Ω (Longitude of ascending node) : 318.66882
            ω (Argument of perihelion)      : 291.64999
            M (Mean anomaly)                : 219.01980
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 250.47587
            B (Latitude of perihelion)      : -6.71243
            P (Orbital period in years)     : 5.39            
        

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
2026-03-23 00:00 UT   06 55 11.6   +25 27 45     2.974    3.303  100.4   17.3    96   13.9 
2026-03-23 14:23 UT   06 55 26.3   +25 26 14     2.982    3.302   99.9   17.3    96   13.9 
2026-03-24 00:00 UT   06 55 36.4   +25 25 13     2.987    3.302   99.5   17.3    96   13.9 
2026-03-25 00:00 UT   06 56 02.4   +25 22 40     3.000    3.301   98.6   17.4    96   13.9 
2026-03-26 00:00 UT   06 56 29.6   +25 20 06     3.014    3.300   97.8   17.4    96   13.9 
2026-03-27 00:00 UT   06 56 57.9   +25 17 31     3.027    3.299   96.9   17.5    96   13.9 
2026-03-28 00:00 UT   06 57 27.4   +25 14 55     3.040    3.298   96.0   17.5    96   14.0 
2026-03-29 00:00 UT   06 57 58.1   +25 12 18     3.054    3.297   95.1   17.6    96   14.0 
2026-03-30 00:00 UT   06 58 29.9   +25 09 40     3.067    3.296   94.3   17.6    96   14.0 
2026-03-31 00:00 UT   06 59 02.7   +25 07 01     3.081    3.295   93.4   17.6    96   14.0 
2026-04-01 00:00 UT   06 59 36.7   +25 04 21     3.094    3.294   92.6   17.6    96   14.0 
2026-04-02 00:00 UT   07 00 11.7   +25 01 40     3.108    3.293   91.7   17.7    96   14.0 
2026-04-03 00:00 UT   07 00 47.8   +24 58 58     3.121    3.292   90.9   17.7    96   14.0 
2026-04-04 00:00 UT   07 01 25.0   +24 56 15     3.135    3.291   90.0   17.7    96   14.0 
2026-04-05 00:00 UT   07 02 03.1   +24 53 30     3.148    3.290   89.2   17.7    96   14.0 
2026-04-06 00:00 UT   07 02 42.3   +24 50 44     3.162    3.289   88.4   17.7    96   14.0 
2026-04-07 00:00 UT   07 03 22.5   +24 47 57     3.175    3.288   87.5   17.7    96   14.0 
2026-04-08 00:00 UT   07 04 03.6   +24 45 09     3.189    3.287   86.7   17.7    96   14.1 
2026-04-09 00:00 UT   07 04 45.7   +24 42 20     3.202    3.286   85.9   17.7    96   14.1 
2026-04-10 00:00 UT   07 05 28.8   +24 39 29     3.215    3.285   85.1   17.7    96   14.1 
2026-04-11 00:00 UT   07 06 12.8   +24 36 37     3.229    3.284   84.3   17.7    96   14.1 
2026-04-12 00:00 UT   07 06 57.7   +24 33 43     3.242    3.283   83.5   17.7    96   14.1 
2026-04-13 00:00 UT   07 07 43.6   +24 30 48     3.256    3.282   82.7   17.6    96   14.1 
2026-04-14 00:00 UT   07 08 30.3   +24 27 52     3.269    3.281   81.9   17.6    96   14.1 
2026-04-15 00:00 UT   07 09 18.0   +24 24 54     3.282    3.280   81.1   17.6    97   14.1 
2026-04-16 00:00 UT   07 10 06.5   +24 21 55     3.295    3.279   80.3   17.6    97   14.1 
2026-04-17 00:00 UT   07 10 55.8   +24 18 54     3.309    3.278   79.5   17.5    97   14.1 
2026-04-18 00:00 UT   07 11 46.0   +24 15 51     3.322    3.277   78.7   17.5    97   14.1 
2026-04-19 00:00 UT   07 12 37.0   +24 12 47     3.335    3.276   77.9   17.4    97   14.1 
2026-04-20 00:00 UT   07 13 28.9   +24 09 41     3.348    3.275   77.2   17.4    97   14.1 
2026-04-21 00:00 UT   07 14 21.5   +24 06 33     3.361    3.274   76.4   17.4    97   14.2 
2026-04-22 00:00 UT   07 15 14.9   +24 03 24     3.374    3.272   75.6   17.3    97   14.2 

    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.