(92) Undina
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Opposition	16 May 2026	11.4	3.227 AU	2.228 AU	15h42m	-08°58'	169.6°	3.2°
Today	17 Jun 2026	11.8	3.196 AU	2.321 AU	15h19m	-09°05'	143.6°	10.9°

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)                : 0.1047890
            a (Semimajor axis)              : 3.1862141
            i (Inclination)                 : 9.92313
            Ω (Longitude of ascending node) : 101.39304
            ω (Argument of perihelion)      : 236.56044
            M (Mean anomaly)                : 272.95053
            Epoch                           : 2026 Jun 09

            L (Longitude of perihelion)     : 157.55518
            B (Latitude of perihelion)      : -8.26786
            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
2026-06-17 00:00 UT   15 19 59.5   -09 05 13     2.321    3.196  143.6   10.9   117   11.8 
2026-06-17 04:16 UT   15 19 54.0   -09 05 31     2.322    3.196  143.4   10.9   117   11.8 
2026-06-18 00:00 UT   15 19 29.0   -09 06 59     2.328    3.195  142.5   11.2   117   11.8 
2026-06-19 00:00 UT   15 18 59.6   -09 08 50     2.335    3.194  141.5   11.4   116   11.8 
2026-06-20 00:00 UT   15 18 31.3   -09 10 48     2.343    3.193  140.5   11.7   116   11.8 
2026-06-21 00:00 UT   15 18 04.1   -09 12 52     2.350    3.192  139.5   11.9   115   11.8 
2026-06-22 00:00 UT   15 17 38.1   -09 15 01     2.358    3.191  138.5   12.2   115   11.9 
2026-06-23 00:00 UT   15 17 13.2   -09 17 16     2.366    3.190  137.5   12.4   115   11.9 
2026-06-24 00:00 UT   15 16 49.5   -09 19 38     2.374    3.189  136.5   12.7   114   11.9 
2026-06-25 00:00 UT   15 16 27.0   -09 22 04     2.383    3.188  135.5   12.9   114   11.9 
2026-06-26 00:00 UT   15 16 05.7   -09 24 37     2.391    3.187  134.5   13.2   114   11.9 
2026-06-27 00:00 UT   15 15 45.6   -09 27 15     2.400    3.186  133.5   13.4   113   11.9 
2026-06-28 00:00 UT   15 15 26.6   -09 29 58     2.409    3.185  132.5   13.6   113   12.0 
2026-06-29 00:00 UT   15 15 08.9   -09 32 48     2.418    3.184  131.5   13.8   113   12.0 
2026-06-30 00:00 UT   15 14 52.5   -09 35 42     2.427    3.183  130.5   14.0   112   12.0 
2026-07-01 00:00 UT   15 14 37.2   -09 38 42     2.436    3.182  129.6   14.3   112   12.0 
2026-07-02 00:00 UT   15 14 23.2   -09 41 47     2.446    3.181  128.6   14.5   112   12.0 
2026-07-03 00:00 UT   15 14 10.4   -09 44 58     2.456    3.180  127.6   14.7   112   12.0 
2026-07-04 00:00 UT   15 13 58.9   -09 48 13     2.465    3.179  126.7   14.9   111   12.0 
2026-07-05 00:00 UT   15 13 48.6   -09 51 34     2.475    3.178  125.7   15.1   111   12.1 
2026-07-06 00:00 UT   15 13 39.6   -09 54 60     2.486    3.177  124.7   15.2   111   12.1 
2026-07-07 00:00 UT   15 13 31.8   -09 58 31     2.496    3.176  123.8   15.4   111   12.1 
2026-07-08 00:00 UT   15 13 25.3   -10 02 06     2.506    3.175  122.8   15.6   110   12.1 
2026-07-09 00:00 UT   15 13 20.0   -10 05 47     2.517    3.174  121.9   15.8   110   12.1 
2026-07-10 00:00 UT   15 13 16.0   -10 09 32     2.527    3.173  121.0   15.9   110   12.1 
2026-07-11 00:00 UT   15 13 13.2   -10 13 23     2.538    3.172  120.0   16.1   110   12.2 
2026-07-12 00:00 UT   15 13 11.7   -10 17 17     2.549    3.171  119.1   16.3   110   12.2 
2026-07-13 00:00 UT   15 13 11.5   -10 21 17     2.560    3.170  118.2   16.4   109   12.2 
2026-07-14 00:00 UT   15 13 12.5   -10 25 20     2.571    3.169  117.3   16.6   109   12.2 
2026-07-15 00:00 UT   15 13 14.8   -10 29 29     2.583    3.168  116.4   16.7   109   12.2 
2026-07-16 00:00 UT   15 13 18.3   -10 33 41     2.594    3.167  115.4   16.8   109   12.2 
2026-07-17 00:00 UT   15 13 23.1   -10 37 58     2.605    3.166  114.5   17.0   109   12.2 

    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.