(92) Undina
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	1 Feb 2023	12.6	3.047 AU	3.060 AU	02h07m	+04°41'	80.0°	18.6°
Opposition	8 Jan 2024	11.4	3.375 AU	2.392 AU	07h17m	+23°46'	178.5°	0.4°

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 Undina are:

            e (Eccentricity)                : 0.1054342
            a (Semimajor axis)              : 3.1868453
            i (Inclination)                 : 9.91993
            Ω (Longitude of ascending node) : 101.40639
            ω (Argument of perihelion)      : 237.34146
            M (Mean anomaly)                : 64.01233
            Epoch                           : 2023 Feb 25

            L (Longitude of perihelion)     : 158.35452
            B (Latitude of perihelion)      : -8.33935
            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. 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
2023-02-01 00:00 UT   02 07 43.4   +04 41 40     3.060    3.047   80.0   18.6    71   12.6 
2023-02-01 00:03 UT   02 07 43.5   +04 41 41     3.060    3.047   80.0   18.6    71   12.6 
2023-02-02 00:00 UT   02 08 33.2   +04 49 41     3.075    3.048   79.2   18.5    72   12.6 
2023-02-03 00:00 UT   02 09 23.8   +04 57 42     3.089    3.049   78.4   18.5    72   12.6 
2023-02-04 00:00 UT   02 10 15.2   +05 05 45     3.104    3.050   77.7   18.4    72   12.6 
2023-02-05 00:00 UT   02 11 07.2   +05 13 49     3.119    3.051   76.9   18.3    72   12.7 
2023-02-06 00:00 UT   02 12 00.0   +05 21 54     3.133    3.052   76.2   18.3    72   12.7 
2023-02-07 00:00 UT   02 12 53.6   +05 29 60     3.148    3.052   75.4   18.2    72   12.7 
2023-02-08 00:00 UT   02 13 47.8   +05 38 06     3.162    3.053   74.7   18.1    72   12.7 
2023-02-09 00:00 UT   02 14 42.8   +05 46 13     3.177    3.054   73.9   18.1    73   12.7 
2023-02-10 00:00 UT   02 15 38.4   +05 54 21     3.191    3.055   73.2   18.0    73   12.7 
2023-02-11 00:00 UT   02 16 34.7   +06 02 30     3.206    3.056   72.4   17.9    73   12.7 
2023-02-12 00:00 UT   02 17 31.7   +06 10 39     3.220    3.057   71.7   17.8    73   12.7 
2023-02-13 00:00 UT   02 18 29.3   +06 18 49     3.235    3.058   71.0   17.8    73   12.7 
2023-02-14 00:00 UT   02 19 27.6   +06 26 59     3.249    3.059   70.2   17.7    73   12.7 
2023-02-15 00:00 UT   02 20 26.6   +06 35 09     3.263    3.060   69.5   17.6    74   12.7 
2023-02-16 00:00 UT   02 21 26.2   +06 43 19     3.277    3.061   68.8   17.5    74   12.7 
2023-02-17 00:00 UT   02 22 26.4   +06 51 30     3.291    3.062   68.0   17.4    74   12.8 
2023-02-18 00:00 UT   02 23 27.2   +06 59 41     3.305    3.063   67.3   17.3    74   12.8 
2023-02-19 00:00 UT   02 24 28.7   +07 07 52     3.319    3.064   66.6   17.2    74   12.8 
2023-02-20 00:00 UT   02 25 30.7   +07 16 03     3.333    3.065   65.9   17.1    74   12.8 
2023-02-21 00:00 UT   02 26 33.4   +07 24 14     3.347    3.066   65.2   17.0    74   12.8 
2023-02-22 00:00 UT   02 27 36.6   +07 32 25     3.361    3.067   64.5   16.9    75   12.8 
2023-02-23 00:00 UT   02 28 40.4   +07 40 35     3.375    3.068   63.8   16.8    75   12.8 
2023-02-24 00:00 UT   02 29 44.8   +07 48 45     3.388    3.069   63.0   16.7    75   12.8 
2023-02-25 00:00 UT   02 30 49.7   +07 56 55     3.402    3.070   62.3   16.6    75   12.8 
2023-02-26 00:00 UT   02 31 55.2   +08 05 04     3.415    3.071   61.6   16.5    75   12.8 
2023-02-27 00:00 UT   02 33 01.2   +08 13 13     3.429    3.072   60.9   16.4    75   12.8 
2023-02-28 00:00 UT   02 34 07.7   +08 21 21     3.442    3.073   60.2   16.2    75   12.8 
2023-03-01 00:00 UT   02 35 14.8   +08 29 28     3.455    3.074   59.6   16.1    76   12.8 
2023-03-02 00:00 UT   02 36 22.4   +08 37 35     3.468    3.075   58.9   16.0    76   12.8 
2023-03-03 00:00 UT   02 37 30.4   +08 45 41     3.481    3.076   58.2   15.9    76   12.8 

    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.