2019 UO
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	20 Dec 2025	26.8	4.164 AU	5.148 AU	17h57m	-24°03'	1.7°	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 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
2025-12-20 00:00 UT   17 57 51.7   -24 03 34     5.148    4.164    1.7    0.4   113   26.8 
2025-12-20 15:15 UT   17 58 33.8   -24 03 23     5.149    4.166    1.2    0.3   121   26.8 
2025-12-21 00:00 UT   17 58 57.9   -24 03 16     5.150    4.166    1.0    0.2   129   26.7 
2025-12-22 00:00 UT   18 00 04.1   -24 02 57     5.152    4.168    0.6    0.1   180   26.7 
2025-12-23 00:00 UT   18 01 10.2   -24 02 35     5.154    4.170    1.0    0.2   232   26.8 
2025-12-24 00:00 UT   18 02 16.3   -24 02 13     5.155    4.172    1.7    0.4   248   26.8 
2025-12-25 00:00 UT   18 03 22.3   -24 01 48     5.156    4.174    2.4    0.6   255   26.8 
2025-12-26 00:00 UT   18 04 28.3   -24 01 22     5.157    4.176    3.1    0.7   259   26.8 
2025-12-27 00:00 UT   18 05 34.1   -24 00 55     5.158    4.178    3.9    0.9   261   26.8 
2025-12-28 00:00 UT   18 06 39.9   -24 00 25     5.159    4.180    4.6    1.1   262   26.9 
2025-12-29 00:00 UT   18 07 45.6   -23 59 54     5.159    4.181    5.4    1.3   263   26.9 
2025-12-30 00:00 UT   18 08 51.1   -23 59 22     5.159    4.183    6.2    1.4   264   26.9 
2025-12-31 00:00 UT   18 09 56.6   -23 58 48     5.159    4.185    6.9    1.6   264   26.9 
2026-01-01 00:00 UT   18 11 01.9   -23 58 12     5.159    4.187    7.7    1.8   265   26.9 
2026-01-02 00:00 UT   18 12 07.2   -23 57 35     5.159    4.189    8.5    2.0   265   26.9 
2026-01-03 00:00 UT   18 13 12.2   -23 56 56     5.158    4.190    9.2    2.2   265   27.0 
2026-01-04 00:00 UT   18 14 17.2   -23 56 16     5.157    4.192   10.0    2.3   265   27.0 
2026-01-05 00:00 UT   18 15 22.0   -23 55 34     5.156    4.194   10.8    2.5   266   27.0 
2026-01-06 00:00 UT   18 16 26.7   -23 54 51     5.154    4.196   11.6    2.7   266   27.0 
2026-01-07 00:00 UT   18 17 31.3   -23 54 06     5.153    4.197   12.3    2.9   266   27.0 
2026-01-08 00:00 UT   18 18 35.7   -23 53 19     5.151    4.199   13.1    3.0   266   27.0 
2026-01-09 00:00 UT   18 19 39.9   -23 52 31     5.149    4.201   13.9    3.2   266   27.0 
2026-01-10 00:00 UT   18 20 43.9   -23 51 42     5.147    4.203   14.6    3.4   266   27.0 
2026-01-11 00:00 UT   18 21 47.8   -23 50 51     5.144    4.204   15.4    3.6   266   27.0 
2026-01-12 00:00 UT   18 22 51.5   -23 49 58     5.142    4.206   16.2    3.7   266   27.1 
2026-01-13 00:00 UT   18 23 55.1   -23 49 04     5.139    4.208   17.0    3.9   266   27.1 
2026-01-14 00:00 UT   18 24 58.4   -23 48 09     5.135    4.209   17.7    4.1   266   27.1 
2026-01-15 00:00 UT   18 26 01.5   -23 47 12     5.132    4.211   18.5    4.3   266   27.1 
2026-01-16 00:00 UT   18 27 04.4   -23 46 14     5.129    4.213   19.3    4.4   266   27.1 
2026-01-17 00:00 UT   18 28 07.1   -23 45 14     5.125    4.214   20.1    4.6   266   27.1 
2026-01-18 00:00 UT   18 29 09.6   -23 44 13     5.121    4.216   20.9    4.8   266   27.1 
2026-01-19 00:00 UT   18 30 11.8   -23 43 11     5.116    4.218   21.6    4.9   266   27.1 

    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.