(14) Irene
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	10 Feb 2026	11.4	2.255 AU	2.425 AU	16h47m	-17°10'	68.3°	24.0°
Opposition	14 Jun 2026	9.4	2.446 AU	1.431 AU	17h34m	-22°41'	178.7°	0.5°

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 Irene are:

            e (Eccentricity)                : 0.1626702
            a (Semimajor axis)              : 2.5878733
            i (Inclination)                 : 9.12955
            Ω (Longitude of ascending node) : 86.00980
            ω (Argument of perihelion)      : 98.26522
            M (Mean anomaly)                : 12.92605
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 4.37957
            B (Latitude of perihelion)      : 9.03393
            P (Orbital period in years)     : 4.16            
        

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
2026-02-10 00:00 UT   16 47 40.4   -17 10 20     2.425    2.255   68.3   24.0   279   11.4 
2026-02-10 14:23 UT   16 48 40.2   -17 12 32     2.419    2.256   68.7   24.0   279   11.4 
2026-02-11 00:00 UT   16 49 20.1   -17 13 59     2.415    2.257   68.9   24.1   279   11.4 
2026-02-12 00:00 UT   16 50 59.2   -17 17 33     2.405    2.258   69.5   24.2   279   11.4 
2026-02-13 00:00 UT   16 52 37.6   -17 21 03     2.395    2.259   70.1   24.3   279   11.3 
2026-02-14 00:00 UT   16 54 15.4   -17 24 28     2.385    2.260   70.7   24.4   278   11.3 
2026-02-15 00:00 UT   16 55 52.5   -17 27 49     2.375    2.262   71.4   24.4   278   11.3 
2026-02-16 00:00 UT   16 57 28.9   -17 31 05     2.364    2.263   72.0   24.5   278   11.3 
2026-02-17 00:00 UT   16 59 04.6   -17 34 17     2.354    2.264   72.6   24.6   278   11.3 
2026-02-18 00:00 UT   17 00 39.5   -17 37 24     2.344    2.265   73.2   24.7   277   11.3 
2026-02-19 00:00 UT   17 02 13.8   -17 40 27     2.333    2.267   73.8   24.8   277   11.3 
2026-02-20 00:00 UT   17 03 47.2   -17 43 26     2.323    2.268   74.5   24.8   277   11.3 
2026-02-21 00:00 UT   17 05 19.9   -17 46 21     2.312    2.269   75.1   24.9   277   11.3 
2026-02-22 00:00 UT   17 06 51.8   -17 49 13     2.302    2.270   75.7   25.0   277   11.3 
2026-02-23 00:00 UT   17 08 22.9   -17 51 60     2.291    2.272   76.4   25.0   276   11.3 
2026-02-24 00:00 UT   17 09 53.2   -17 54 43     2.281    2.273   77.0   25.1   276   11.3 
2026-02-25 00:00 UT   17 11 22.7   -17 57 23     2.270    2.274   77.7   25.2   276   11.3 
2026-02-26 00:00 UT   17 12 51.3   -17 59 60     2.259    2.276   78.3   25.2   276   11.3 
2026-02-27 00:00 UT   17 14 19.1   -18 02 32     2.249    2.277   79.0   25.3   276   11.3 
2026-02-28 00:00 UT   17 15 46.0   -18 05 02     2.238    2.278   79.6   25.3   275   11.3 
2026-03-01 00:00 UT   17 17 12.1   -18 07 28     2.227    2.280   80.3   25.4   275   11.2 
2026-03-02 00:00 UT   17 18 37.2   -18 09 51     2.217    2.281   80.9   25.4   275   11.2 
2026-03-03 00:00 UT   17 20 01.4   -18 12 11     2.206    2.282   81.6   25.4   275   11.2 
2026-03-04 00:00 UT   17 21 24.8   -18 14 28     2.195    2.284   82.3   25.5   274   11.2 
2026-03-05 00:00 UT   17 22 47.1   -18 16 42     2.184    2.285   82.9   25.5   274   11.2 

    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.