(133) Cyrene
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	24 Apr 2024	14.2	3.275 AU	4.242 AU	01h09m	+12°27'	14.0°	4.3°
Opposition	8 Nov 2024	13.0	3.434 AU	2.454 AU	02h45m	+26°37'	169.8°	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)                : 0.1342962
            a (Semimajor axis)              : 3.0626983
            i (Inclination)                 : 7.21346
            Ω (Longitude of ascending node) : 318.99260
            ω (Argument of perihelion)      : 290.36028
            M (Mean anomaly)                : 73.36933
            Epoch                           : 2023 Sep 13

            L (Longitude of perihelion)     : 249.50184
            B (Latitude of perihelion)      : -6.76061
            P (Orbital period in years)     : 5.36            
        

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. A more printer-friendly version of the same chart can be found below.

Ephemerides:

Date       Time       RA (2000)    DEC (2000)    delta   radius  elong  phase   PA    magn
2024-04-24 00:00 UT   01 09 21.4   +12 27 17     4.242    3.275   14.0    4.3   267   14.2 
2024-04-24 12:03 UT   01 10 00.4   +12 31 36     4.241    3.276   14.3    4.4   266   14.2 
2024-04-25 00:00 UT   01 10 39.1   +12 35 52     4.240    3.276   14.6    4.4   266   14.2 
2024-04-26 00:00 UT   01 11 56.7   +12 44 26     4.238    3.278   15.2    4.6   265   14.2 
2024-04-27 00:00 UT   01 13 14.3   +12 52 59     4.235    3.279   15.8    4.8   265   14.2 
2024-04-28 00:00 UT   01 14 31.8   +13 01 31     4.233    3.280   16.4    5.0   264   14.2 
2024-04-29 00:00 UT   01 15 49.2   +13 10 02     4.230    3.281   17.0    5.2   264   14.3 
2024-04-30 00:00 UT   01 17 06.6   +13 18 31     4.227    3.282   17.6    5.3   263   14.3 
2024-05-01 00:00 UT   01 18 23.8   +13 26 59     4.224    3.283   18.2    5.5   263   14.3 
2024-05-02 00:00 UT   01 19 41.0   +13 35 26     4.221    3.284   18.9    5.7   262   14.3 
2024-05-03 00:00 UT   01 20 58.1   +13 43 52     4.218    3.285   19.5    5.9   262   14.3 
2024-05-04 00:00 UT   01 22 15.1   +13 52 16     4.215    3.286   20.1    6.0   261   14.3 
2024-05-05 00:00 UT   01 23 32.0   +14 00 39     4.211    3.287   20.7    6.2   261   14.3 
2024-05-06 00:00 UT   01 24 48.7   +14 09 01     4.207    3.288   21.3    6.4   261   14.3 
2024-05-07 00:00 UT   01 26 05.4   +14 17 21     4.203    3.289   21.9    6.6   260   14.3 
2024-05-08 00:00 UT   01 27 22.0   +14 25 40     4.199    3.290   22.5    6.8   260   14.3 
2024-05-09 00:00 UT   01 28 38.4   +14 33 57     4.195    3.291   23.1    6.9   260   14.3 
2024-05-10 00:00 UT   01 29 54.8   +14 42 13     4.191    3.292   23.8    7.1   260   14.3 
2024-05-11 00:00 UT   01 31 10.9   +14 50 27     4.186    3.293   24.4    7.3   259   14.3 
2024-05-12 00:00 UT   01 32 27.0   +14 58 39     4.182    3.294   25.0    7.4   259   14.3 
2024-05-13 00:00 UT   01 33 42.9   +15 06 50     4.177    3.295   25.6    7.6   259   14.4 
2024-05-14 00:00 UT   01 34 58.7   +15 14 60     4.172    3.296   26.2    7.8   259   14.4 
2024-05-15 00:00 UT   01 36 14.4   +15 23 08     4.167    3.297   26.9    8.0   259   14.4 
2024-05-16 00:00 UT   01 37 29.9   +15 31 14     4.162    3.298   27.5    8.1   258   14.4 
2024-05-17 00:00 UT   01 38 45.2   +15 39 18     4.157    3.299   28.1    8.3   258   14.4 
2024-05-18 00:00 UT   01 40 00.4   +15 47 21     4.151    3.300   28.7    8.5   258   14.4 
2024-05-19 00:00 UT   01 41 15.5   +15 55 22     4.145    3.301   29.4    8.6   258   14.4 

    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.