(14) Irene
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	28 Mar 2026	11.0	2.318 AU	1.935 AU	17h49m	-18°58'	99.5°	25.1°
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
2026-03-28 00:00 UT   17 49 18.2   -18 58 52     1.935    2.318   99.5   25.1   270   11.0 
2026-03-28 11:16 UT   17 49 43.7   -18 59 38     1.930    2.319   99.8   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 
2026-04-08 00:00 UT   17 57 51.7   -19 17 16     1.819    2.335  108.3   24.0   269   10.8 
2026-04-09 00:00 UT   17 58 29.1   -19 19 01     1.808    2.336  109.1   23.9   269   10.8 
2026-04-10 00:00 UT   17 59 04.9   -19 20 48     1.798    2.338  109.9   23.8   269   10.8 
2026-04-11 00:00 UT   17 59 38.9   -19 22 36     1.788    2.339  110.8   23.6   268   10.8 
2026-04-12 00:00 UT   18 00 11.3   -19 24 26     1.778    2.341  111.6   23.5   268   10.8 
2026-04-13 00:00 UT   18 00 42.0   -19 26 18     1.768    2.343  112.5   23.3   268   10.7 
2026-04-14 00:00 UT   18 01 11.0   -19 28 12     1.758    2.344  113.4   23.1   268   10.7 
2026-04-15 00:00 UT   18 01 38.2   -19 30 07     1.748    2.346  114.2   23.0   268   10.7 
2026-04-16 00:00 UT   18 02 03.6   -19 32 05     1.738    2.347  115.1   22.8   268   10.7 
2026-04-17 00:00 UT   18 02 27.3   -19 34 04     1.729    2.349  116.0   22.6   268   10.7 
2026-04-18 00:00 UT   18 02 49.1   -19 36 06     1.719    2.350  116.9   22.4   268   10.7 
2026-04-19 00:00 UT   18 03 09.1   -19 38 10     1.710    2.352  117.8   22.2   268   10.6 
2026-04-20 00:00 UT   18 03 27.3   -19 40 17     1.700    2.354  118.7   22.0   268   10.6 
2026-04-21 00:00 UT   18 03 43.7   -19 42 27     1.691    2.355  119.6   21.8   268   10.6 
2026-04-22 00:00 UT   18 03 58.2   -19 44 39     1.682    2.357  120.5   21.6   267   10.6 
2026-04-23 00:00 UT   18 04 10.8   -19 46 53     1.672    2.358  121.4   21.3   267   10.6 
2026-04-24 00:00 UT   18 04 21.5   -19 49 11     1.663    2.360  122.4   21.1   267   10.6 
2026-04-25 00:00 UT   18 04 30.4   -19 51 31     1.654    2.362  123.3   20.9   267   10.5 
2026-04-26 00:00 UT   18 04 37.4   -19 53 54     1.646    2.363  124.3   20.6   267   10.5 
2026-04-27 00:00 UT   18 04 42.5   -19 56 20     1.637    2.365  125.2   20.3   267   10.5 

    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.