2019 UO
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	21 Oct 2025	27.1	4.029 AU	4.634 AU	16h54m	-23°37'	47.5°	10.5°

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 2019 UO are:

            e (Eccentricity)                : 0.6379996
            a (Semimajor axis)              : 2.6527835
            i (Inclination)                 : 5.70263
            Ω (Longitude of ascending node) : 277.59194
            ω (Argument of perihelion)      : 184.98981
            M (Mean anomaly)                : 130.21689
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 282.55718
            B (Latitude of perihelion)      : -0.49519
            P (Orbital period in years)     : 4.32            
        

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
2025-10-21 00:00 UT   16 54 17.7   -23 37 49     4.634    4.029   47.5   10.5    97   27.1 
2025-10-21 19:01 UT   16 55 02.9   -23 38 33     4.646    4.031   46.9   10.4    97   27.1 
2025-10-22 00:00 UT   16 55 14.8   -23 38 45     4.648    4.032   46.7   10.4    97   27.1 
2025-10-23 00:00 UT   16 56 12.2   -23 39 40     4.662    4.034   45.9   10.2    97   27.1 
2025-10-24 00:00 UT   16 57 10.0   -23 40 35     4.676    4.037   45.2   10.1    97   27.1 
2025-10-25 00:00 UT   16 58 08.1   -23 41 30     4.690    4.039   44.4    9.9    97   27.1 
2025-10-26 00:00 UT   16 59 06.6   -23 42 23     4.703    4.042   43.6    9.8    97   27.1 
2025-10-27 00:00 UT   17 00 05.4   -23 43 17     4.716    4.045   42.9    9.6    97   27.1 
2025-10-28 00:00 UT   17 01 04.5   -23 44 09     4.729    4.047   42.1    9.5    97   27.1 
2025-10-29 00:00 UT   17 02 03.9   -23 45 02     4.742    4.050   41.3    9.3    97   27.1 
2025-10-30 00:00 UT   17 03 03.6   -23 45 53     4.755    4.052   40.5    9.2    97   27.1 
2025-10-31 00:00 UT   17 04 03.6   -23 46 43     4.768    4.054   39.8    9.0    97   27.1 
2025-11-01 00:00 UT   17 05 03.8   -23 47 33     4.780    4.057   39.0    8.9    97   27.1 
2025-11-02 00:00 UT   17 06 04.4   -23 48 22     4.792    4.059   38.2    8.7    97   27.1 
2025-11-03 00:00 UT   17 07 05.2   -23 49 10     4.804    4.062   37.5    8.5    96   27.1 
2025-11-04 00:00 UT   17 08 06.3   -23 49 58     4.816    4.064   36.7    8.4    96   27.1 
2025-11-05 00:00 UT   17 09 07.7   -23 50 44     4.828    4.067   35.9    8.2    96   27.1 
2025-11-06 00:00 UT   17 10 09.3   -23 51 29     4.839    4.069   35.2    8.1    96   27.1 
2025-11-07 00:00 UT   17 11 11.2   -23 52 14     4.851    4.072   34.4    7.9    96   27.1 
2025-11-08 00:00 UT   17 12 13.3   -23 52 57     4.862    4.074   33.6    7.7    96   27.1 
2025-11-09 00:00 UT   17 13 15.6   -23 53 40     4.873    4.076   32.9    7.6    96   27.1 
2025-11-10 00:00 UT   17 14 18.1   -23 54 21     4.884    4.079   32.1    7.4    96   27.1 
2025-11-11 00:00 UT   17 15 20.9   -23 55 02     4.894    4.081   31.3    7.2    96   27.1 
2025-11-12 00:00 UT   17 16 23.9   -23 55 41     4.905    4.083   30.6    7.1    96   27.1 
2025-11-13 00:00 UT   17 17 27.1   -23 56 19     4.915    4.086   29.8    6.9    96   27.1 
2025-11-14 00:00 UT   17 18 30.5   -23 56 56     4.925    4.088   29.0    6.7    96   27.1 
2025-11-15 00:00 UT   17 19 34.1   -23 57 32     4.935    4.090   28.3    6.6    96   27.1 
2025-11-16 00:00 UT   17 20 37.9   -23 58 07     4.944    4.093   27.5    6.4    96   27.1 
2025-11-17 00:00 UT   17 21 41.9   -23 58 40     4.954    4.095   26.7    6.2    95   27.0 
2025-11-18 00:00 UT   17 22 46.1   -23 59 12     4.963    4.097   26.0    6.1    95   27.0 
2025-11-19 00:00 UT   17 23 50.4   -23 59 43     4.972    4.099   25.2    5.9    95   27.0 
2025-11-20 00:00 UT   17 24 54.9   -24 00 13     4.981    4.102   24.4    5.7    95   27.0 

    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.