(92) Undina
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	6 Mar 2026	12.6	3.296 AU	2.910 AU	16h02m	-10°56'	104.1°	17.0°
Opposition	16 May 2026	11.4	3.227 AU	2.228 AU	15h42m	-08°58'	169.6°	3.2°

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 Undina are:

            e (Eccentricity)                : 0.1048647
            a (Semimajor axis)              : 3.1854746
            i (Inclination)                 : 9.92326
            Ω (Longitude of ascending node) : 101.39207
            ω (Argument of perihelion)      : 236.68467
            M (Mean anomaly)                : 238.16042
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 157.67916
            B (Latitude of perihelion)      : -8.27987
            P (Orbital period in years)     : 5.69            
        

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
2026-03-06 00:00 UT   16 02 17.1   -10 56 53     2.910    3.296  104.1   17.0   279   12.6 
2026-03-06 21:22 UT   16 02 38.9   -10 56 21     2.897    3.295  104.9   16.9   279   12.5 
2026-03-07 00:00 UT   16 02 41.6   -10 56 17     2.895    3.295  105.0   16.9   279   12.5 
2026-03-08 00:00 UT   16 03 05.0   -10 55 37     2.881    3.294  105.9   16.8   279   12.5 
2026-03-09 00:00 UT   16 03 27.2   -10 54 54     2.866    3.293  106.8   16.8   278   12.5 
2026-03-10 00:00 UT   16 03 48.4   -10 54 07     2.851    3.292  107.7   16.7   278   12.5 
2026-03-11 00:00 UT   16 04 08.4   -10 53 17     2.837    3.291  108.6   16.6   278   12.5 
2026-03-12 00:00 UT   16 04 27.2   -10 52 23     2.822    3.290  109.5   16.5   278   12.5 
2026-03-13 00:00 UT   16 04 44.9   -10 51 26     2.808    3.289  110.4   16.4   278   12.5 
2026-03-14 00:00 UT   16 05 01.4   -10 50 25     2.793    3.289  111.4   16.4   277   12.4 
2026-03-15 00:00 UT   16 05 16.7   -10 49 22     2.779    3.288  112.3   16.3   277   12.4 
2026-03-16 00:00 UT   16 05 30.8   -10 48 15     2.765    3.287  113.2   16.1   277   12.4 
2026-03-17 00:00 UT   16 05 43.6   -10 47 05     2.751    3.286  114.1   16.0   277   12.4 
2026-03-18 00:00 UT   16 05 55.3   -10 45 52     2.737    3.285  115.1   15.9   276   12.4 
2026-03-19 00:00 UT   16 06 05.7   -10 44 35     2.723    3.284  116.0   15.8   276   12.4 
2026-03-20 00:00 UT   16 06 14.9   -10 43 16     2.709    3.283  116.9   15.7   276   12.4 
2026-03-21 00:00 UT   16 06 22.8   -10 41 54     2.696    3.282  117.9   15.6   276   12.3 
2026-03-22 00:00 UT   16 06 29.5   -10 40 29     2.682    3.281  118.8   15.4   275   12.3 
2026-03-23 00:00 UT   16 06 34.9   -10 39 02     2.669    3.280  119.8   15.3   275   12.3 
2026-03-24 00:00 UT   16 06 39.0   -10 37 32     2.656    3.279  120.7   15.1   275   12.3 
2026-03-25 00:00 UT   16 06 41.9   -10 35 59     2.642    3.278  121.7   15.0   275   12.3 
2026-03-26 00:00 UT   16 06 43.5   -10 34 24     2.629    3.277  122.7   14.8   274   12.3 
2026-03-27 00:00 UT   16 06 43.8   -10 32 46     2.617    3.276  123.6   14.7   274   12.2 
2026-03-28 00:00 UT   16 06 42.9   -10 31 06     2.604    3.275  124.6   14.5   274   12.2 
2026-03-29 00:00 UT   16 06 40.6   -10 29 24     2.591    3.274  125.6   14.4   274   12.2 
2026-03-30 00:00 UT   16 06 37.1   -10 27 40     2.579    3.273  126.6   14.2   273   12.2 
2026-03-31 00:00 UT   16 06 32.3   -10 25 54     2.566    3.273  127.6   14.0   273   12.2 
2026-04-01 00:00 UT   16 06 26.2   -10 24 05     2.554    3.272  128.5   13.8   273   12.2 
2026-04-02 00:00 UT   16 06 18.8   -10 22 15     2.542    3.271  129.5   13.6   272   12.1 
2026-04-03 00:00 UT   16 06 10.2   -10 20 23     2.531    3.270  130.5   13.4   272   12.1 
2026-04-04 00:00 UT   16 06 00.2   -10 18 29     2.519    3.269  131.5   13.2   272   12.1 
2026-04-05 00:00 UT   16 05 49.0   -10 16 34     2.507    3.268  132.5   13.0   271   12.1 

    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.