(14) Irene
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	8 Mar 2026	11.2	2.289 AU	2.152 AU	17h26m	-18°23'	85.0°	25.6°
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
2026-03-08 00:00 UT   17 26 48.4   -18 23 07     2.152    2.289   85.0   25.6   274   11.2 
2026-03-08 04:19 UT   17 27 02.6   -18 23 30     2.150    2.290   85.1   25.6   274   11.2 
2026-03-09 00:00 UT   17 28 06.9   -18 25 11     2.141    2.291   85.7   25.6   274   11.2 
2026-03-10 00:00 UT   17 29 24.3   -18 27 12     2.130    2.292   86.3   25.6   273   11.2 
2026-03-11 00:00 UT   17 30 40.6   -18 29 10     2.119    2.293   87.0   25.6   273   11.2 
2026-03-12 00:00 UT   17 31 55.9   -18 31 07     2.108    2.295   87.7   25.6   273   11.1 
2026-03-13 00:00 UT   17 33 10.1   -18 33 01     2.097    2.296   88.4   25.6   273   11.1 
2026-03-14 00:00 UT   17 34 23.1   -18 34 53     2.086    2.298   89.1   25.6   273   11.1 
2026-03-15 00:00 UT   17 35 35.1   -18 36 44     2.076    2.299   89.9   25.6   272   11.1 
2026-03-16 00:00 UT   17 36 45.9   -18 38 33     2.065    2.301   90.6   25.6   272   11.1 
2026-03-17 00:00 UT   17 37 55.5   -18 40 20     2.054    2.302   91.3   25.6   272   11.1 
2026-03-18 00:00 UT   17 39 03.9   -18 42 06     2.043    2.303   92.0   25.6   272   11.1 
2026-03-19 00:00 UT   17 40 11.1   -18 43 51     2.032    2.305   92.7   25.6   272   11.1 
2026-03-20 00:00 UT   17 41 17.1   -18 45 34     2.021    2.306   93.5   25.5   272   11.1 
2026-03-21 00:00 UT   17 42 21.8   -18 47 16     2.010    2.308   94.2   25.5   271   11.1 
2026-03-22 00:00 UT   17 43 25.2   -18 48 57     1.999    2.309   94.9   25.5   271   11.0 
2026-03-23 00:00 UT   17 44 27.4   -18 50 38     1.989    2.311   95.7   25.4   271   11.0 
2026-03-24 00:00 UT   17 45 28.2   -18 52 18     1.978    2.312   96.4   25.4   271   11.0 
2026-03-25 00:00 UT   17 46 27.7   -18 53 57     1.967    2.314   97.2   25.3   271   11.0 
2026-03-26 00:00 UT   17 47 25.9   -18 55 35     1.956    2.315   97.9   25.3   271   11.0 
2026-03-27 00:00 UT   17 48 22.7   -18 57 14     1.945    2.317   98.7   25.2   270   11.0 
2026-03-28 00:00 UT   17 49 18.2   -18 58 52     1.935    2.318   99.5   25.1   270   11.0 
2026-03-29 00:00 UT   17 50 12.2   -19 00 30     1.924    2.320  100.2   25.1   270   11.0 
2026-03-30 00:00 UT   17 51 04.9   -19 02 09     1.913    2.321  101.0   25.0   270   10.9 
2026-03-31 00:00 UT   17 51 56.1   -19 03 47     1.903    2.323  101.8   24.9   270   10.9 
2026-04-01 00:00 UT   17 52 45.8   -19 05 26     1.892    2.324  102.6   24.8   270   10.9 
2026-04-02 00:00 UT   17 53 34.1   -19 07 05     1.881    2.326  103.4   24.7   270   10.9 
2026-04-03 00:00 UT   17 54 20.9   -19 08 45     1.871    2.327  104.2   24.6   269   10.9 
2026-04-04 00:00 UT   17 55 06.2   -19 10 25     1.860    2.329  105.0   24.5   269   10.9 
2026-04-05 00:00 UT   17 55 49.9   -19 12 06     1.850    2.330  105.8   24.4   269   10.9 
2026-04-06 00:00 UT   17 56 32.1   -19 13 49     1.839    2.332  106.6   24.3   269   10.8 
2026-04-07 00:00 UT   17 57 12.7   -19 15 32     1.829    2.333  107.4   24.2   269   10.8 

    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.