(133) Cyrene
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Opposition	8 Jan 2026	12.8	3.368 AU	2.388 AU	07h24m	+27°13'	174.8°	1.5°
Today	6 Feb 2026	13.3	3.344 AU	2.479 AU	07h00m	+27°00'	146.4°	9.4°

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
2026-02-06 00:00 UT   07 00 16.8   +27 00 56     2.479    3.344  146.4    9.4   102   13.3 
2026-02-06 01:45 UT   07 00 14.0   +27 00 50     2.479    3.344  146.3    9.4   102   13.3 
2026-02-07 00:00 UT   06 59 39.1   +26 59 35     2.486    3.343  145.2    9.7   102   13.3 
2026-02-08 00:00 UT   06 59 02.7   +26 58 10     2.493    3.343  144.1   10.0   102   13.3 
2026-02-09 00:00 UT   06 58 27.6   +26 56 42     2.501    3.342  143.0   10.2   101   13.3 
2026-02-10 00:00 UT   06 57 53.7   +26 55 12     2.509    3.341  141.8   10.5   101   13.3 
2026-02-11 00:00 UT   06 57 21.2   +26 53 39     2.517    3.340  140.7   10.8   101   13.3 
2026-02-12 00:00 UT   06 56 50.1   +26 52 03     2.525    3.339  139.6   11.0   100   13.4 
2026-02-13 00:00 UT   06 56 20.3   +26 50 25     2.534    3.338  138.5   11.3   100   13.4 
2026-02-14 00:00 UT   06 55 51.9   +26 48 44     2.543    3.337  137.4   11.6   100   13.4 
2026-02-15 00:00 UT   06 55 24.9   +26 47 01     2.552    3.336  136.3   11.8   100   13.4 
2026-02-16 00:00 UT   06 54 59.3   +26 45 15     2.561    3.336  135.2   12.0    99   13.4 
2026-02-17 00:00 UT   06 54 35.1   +26 43 27     2.571    3.335  134.1   12.3    99   13.4 
2026-02-18 00:00 UT   06 54 12.4   +26 41 37     2.580    3.334  133.0   12.5    99   13.5 
2026-02-19 00:00 UT   06 53 51.2   +26 39 45     2.590    3.333  131.9   12.7    99   13.5 
2026-02-20 00:00 UT   06 53 31.4   +26 37 51     2.600    3.332  130.9   13.0    99   13.5 
2026-02-21 00:00 UT   06 53 13.0   +26 35 55     2.610    3.331  129.8   13.2    98   13.5 
2026-02-22 00:00 UT   06 52 56.2   +26 33 57     2.621    3.330  128.7   13.4    98   13.5 
2026-02-23 00:00 UT   06 52 40.9   +26 31 58     2.631    3.329  127.7   13.6    98   13.5 
2026-02-24 00:00 UT   06 52 27.0   +26 29 57     2.642    3.328  126.6   13.8    98   13.6 
2026-02-25 00:00 UT   06 52 14.6   +26 27 54     2.653    3.327  125.6   14.0    98   13.6 
2026-02-26 00:00 UT   06 52 03.7   +26 25 49     2.664    3.327  124.6   14.2    98   13.6 
2026-02-27 00:00 UT   06 51 54.2   +26 23 44     2.675    3.326  123.5   14.4    97   13.6 
2026-02-28 00:00 UT   06 51 46.3   +26 21 36     2.686    3.325  122.5   14.6    97   13.6 
2026-03-01 00:00 UT   06 51 39.8   +26 19 28     2.697    3.324  121.5   14.7    97   13.6 
2026-03-02 00:00 UT   06 51 34.7   +26 17 18     2.709    3.323  120.5   14.9    97   13.6 
2026-03-03 00:00 UT   06 51 31.2   +26 15 06     2.721    3.322  119.4   15.1    97   13.7 
2026-03-04 00:00 UT   06 51 29.0   +26 12 54     2.732    3.321  118.4   15.2    97   13.7 
2026-03-05 00:00 UT   06 51 28.3   +26 10 40     2.744    3.320  117.4   15.4    97   13.7 
2026-03-06 00:00 UT   06 51 29.1   +26 08 26     2.756    3.319  116.5   15.5    97   13.7 
2026-03-07 00:00 UT   06 51 31.2   +26 06 10     2.768    3.318  115.5   15.7    97   13.7 
2026-03-08 00:00 UT   06 51 34.8   +26 03 53     2.781    3.317  114.5   15.8    97   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.