(176) Iduna
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	24 May 2026	14.4	3.051 AU	3.704 AU	06h48m	+04°28'	43.6°	13.2°
Opposition	4 Mar 2027	13.6	3.490 AU	2.539 AU	10h31m	-11°39'	160.6°	5.4°

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 Iduna are:

            e (Eccentricity)                : 0.1722468
            a (Semimajor axis)              : 3.1802398
            i (Inclination)                 : 22.67613
            Ω (Longitude of ascending node) : 200.45174
            ω (Argument of perihelion)      : 189.02649
            M (Mean anomaly)                : 34.81371
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 208.79068
            B (Latitude of perihelion)      : -3.46765
            P (Orbital period in years)     : 5.67            
        

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
2026-05-24 00:00 UT   06 48 21.5   +04 28 08     3.704    3.051   43.6   13.2   116   14.4 
2026-05-24 20:32 UT   06 49 35.0   +04 28 54     3.712    3.053   43.1   13.1   116   14.4 
2026-05-25 00:00 UT   06 49 47.5   +04 29 02     3.714    3.053   43.0   13.1   116   14.4 
2026-05-26 00:00 UT   06 51 13.6   +04 29 49     3.724    3.055   42.5   12.9   117   14.4 
2026-05-27 00:00 UT   06 52 39.8   +04 30 31     3.733    3.056   42.0   12.8   117   14.5 
2026-05-28 00:00 UT   06 54 06.3   +04 31 08     3.743    3.058   41.4   12.7   118   14.5 
2026-05-29 00:00 UT   06 55 32.8   +04 31 39     3.753    3.060   40.9   12.5   118   14.5 
2026-05-30 00:00 UT   06 56 59.6   +04 32 05     3.762    3.061   40.4   12.4   119   14.5 
2026-05-31 00:00 UT   06 58 26.4   +04 32 25     3.772    3.063   39.9   12.2   119   14.5 
2026-06-01 00:00 UT   06 59 53.4   +04 32 40     3.781    3.065   39.3   12.1   120   14.5 
2026-06-02 00:00 UT   07 01 20.6   +04 32 50     3.790    3.066   38.8   12.0   120   14.5 
2026-06-03 00:00 UT   07 02 47.8   +04 32 54     3.799    3.068   38.3   11.8   121   14.5 
2026-06-04 00:00 UT   07 04 15.2   +04 32 52     3.808    3.070   37.8   11.7   121   14.5 
2026-06-05 00:00 UT   07 05 42.7   +04 32 46     3.817    3.071   37.3   11.5   122   14.5 
2026-06-06 00:00 UT   07 07 10.3   +04 32 33     3.826    3.073   36.7   11.4   123   14.5 
2026-06-07 00:00 UT   07 08 38.1   +04 32 16     3.834    3.075   36.2   11.2   123   14.5 
2026-06-08 00:00 UT   07 10 05.9   +04 31 53     3.843    3.077   35.7   11.1   124   14.5 
2026-06-09 00:00 UT   07 11 33.8   +04 31 24     3.851    3.078   35.2   11.0   124   14.5 
2026-06-10 00:00 UT   07 13 01.8   +04 30 51     3.860    3.080   34.7   10.8   125   14.5 
2026-06-11 00:00 UT   07 14 29.9   +04 30 12     3.868    3.082   34.2   10.7   126   14.5 
2026-06-12 00:00 UT   07 15 58.1   +04 29 27     3.876    3.083   33.7   10.5   126   14.5 
2026-06-13 00:00 UT   07 17 26.3   +04 28 38     3.884    3.085   33.2   10.4   127   14.5 
2026-06-14 00:00 UT   07 18 54.7   +04 27 43     3.892    3.087   32.7   10.2   128   14.5 
2026-06-15 00:00 UT   07 20 23.1   +04 26 42     3.900    3.088   32.2   10.1   128   14.5 
2026-06-16 00:00 UT   07 21 51.5   +04 25 37     3.907    3.090   31.7   10.0   129   14.5 

    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.