(92) Undina
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	6 Oct 2022	11.3	2.943 AU	2.011 AU	02h26m	-00°21'	154.2°	8.5°
Opposition	23 Oct 2022	11.1	2.957 AU	1.982 AU	02h14m	-01°28'	165.9°	4.7°

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)                : 0.1059109
            a (Semimajor axis)              : 3.1902852
            i (Inclination)                 : 9.91658
            Ω (Longitude of ascending node) : 101.45907
            ω (Argument of perihelion)      : 237.80274
            M (Mean anomaly)                : 28.90074
            Epoch                           : 2022 Aug 09

            L (Longitude of perihelion)     : 158.87166
            B (Latitude of perihelion)      : -8.37960
            P (Orbital period in years)     : 5.70            
        

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. A more printer-friendly version of the same chart can be found below.

Ephemerides:

Date       Time       RA (2000)    DEC (2000)    delta   radius  elong  phase   PA    magn
2022-10-06 00:00 UT   02 26 44.7   +00 21 06     2.011    2.943  154.2    8.5   282   11.3 
2022-10-06 17:34 UT   02 26 17.6   +00 24 16     2.008    2.944  154.9    8.3   283   11.3 
2022-10-07 00:00 UT   02 26 07.6   +00 25 25     2.007    2.944  155.2    8.2   284   11.2 
2022-10-08 00:00 UT   02 25 29.5   +00 29 42     2.003    2.945  156.1    7.9   285   11.2 
2022-10-09 00:00 UT   02 24 50.6   +00 33 57     2.000    2.946  157.0    7.6   287   11.2 
2022-10-10 00:00 UT   02 24 10.8   +00 38 10     1.997    2.947  157.9    7.3   289   11.2 
2022-10-11 00:00 UT   02 23 30.2   +00 42 19     1.994    2.947  158.8    7.0   291   11.2 
2022-10-12 00:00 UT   02 22 48.9   +00 46 26     1.992    2.948  159.6    6.8   293   11.2 
2022-10-13 00:00 UT   02 22 06.7   +00 50 29     1.989    2.949  160.5    6.5   296   11.2 
2022-10-14 00:00 UT   02 21 24.0   +00 54 28     1.987    2.950  161.2    6.2   298   11.1 
2022-10-15 00:00 UT   02 20 40.5   +00 58 23     1.986    2.950  162.0    6.0   301   11.1 
2022-10-16 00:00 UT   02 19 56.5   -01 02 14     1.984    2.951  162.7    5.8   304   11.1 
2022-10-17 00:00 UT   02 19 11.9   -01 05 60     1.983    2.952  163.4    5.6   308   11.1 
2022-10-18 00:00 UT   02 18 26.8   -01 09 41     1.982    2.953  163.9    5.4   311   11.1 
2022-10-19 00:00 UT   02 17 41.2   -01 13 17     1.982    2.954  164.5    5.2   315   11.1 
2022-10-20 00:00 UT   02 16 55.2   -01 16 47     1.981    2.954  164.9    5.0   320   11.1 
2022-10-21 00:00 UT   02 16 08.9   -01 20 12     1.981    2.955  165.3    4.9   324   11.1 
2022-10-22 00:00 UT   02 15 22.2   -01 23 30     1.981    2.956  165.6    4.8   329   11.1 
2022-10-23 00:00 UT   02 14 35.4   -01 26 42     1.982    2.957  165.8    4.7   333   11.1 
2022-10-24 00:00 UT   02 13 48.3   -01 29 47     1.983    2.957  165.9    4.7   338   11.1 
2022-10-25 00:00 UT   02 13 01.0   -01 32 45     1.984    2.958  165.9    4.7   343   11.1 
2022-10-26 00:00 UT   02 12 13.7   -01 35 36     1.985    2.959  165.8    4.7   348   11.1 
2022-10-27 00:00 UT   02 11 26.4   -01 38 20     1.987    2.960  165.7    4.8   353   11.1 
2022-10-28 00:00 UT   02 10 39.0   -01 40 55     1.988    2.961  165.4    4.9   357   11.1 
2022-10-29 00:00 UT   02 09 51.8   -01 43 23     1.991    2.961  165.0    5.0     2   11.1 
2022-10-30 00:00 UT   02 09 04.6   -01 45 42     1.993    2.962  164.6    5.1     6   11.1 
2022-10-31 00:00 UT   02 08 17.7   -01 47 53     1.996    2.963  164.0    5.3    10   11.1 
2022-11-01 00:00 UT   02 07 31.0   -01 49 56     1.999    2.964  163.4    5.5    14   11.1 
2022-11-02 00:00 UT   02 06 44.6   -01 51 49     2.002    2.965  162.8    5.7    17   11.1 
2022-11-03 00:00 UT   02 05 58.5   -01 53 34     2.006    2.966  162.1    5.9    20   11.2 
2022-11-04 00:00 UT   02 05 12.9   -01 55 09     2.010    2.966  161.3    6.1    23   11.2 
2022-11-05 00:00 UT   02 04 27.6   -01 56 36     2.014    2.967  160.6    6.4    26   11.2 

    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.