2019 UN12
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	23 May 2026	26.9	2.278 AU	3.076 AU	01h48m	+12°59'	31.8°	13.5°

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 UN12 are:

            e (Eccentricity)                : 0.8461801
            a (Semimajor axis)              : 2.2562223
            i (Inclination)                 : 5.19316
            Ω (Longitude of ascending node) : 222.54238
            ω (Argument of perihelion)      : 301.79588
            M (Mean anomaly)                : 264.59435
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 164.44390
            B (Latitude of perihelion)      : -4.41214
            P (Orbital period in years)     : 3.39            
        

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
2026-05-23 00:00 UT   01 48 25.6   +12 59 52     3.076    2.278   31.8   13.5   252   26.9 
2026-05-23 12:43 UT   01 49 17.5   +13 04 24     3.067    2.273   32.1   13.7   252   26.9 
2026-05-24 00:00 UT   01 50 03.6   +13 08 26     3.059    2.269   32.3   13.8   252   26.9 
2026-05-25 00:00 UT   01 51 42.3   +13 17 00     3.042    2.259   32.8   14.1   252   26.8 
2026-05-26 00:00 UT   01 53 21.5   +13 25 35     3.025    2.249   33.4   14.3   252   26.8 
2026-05-27 00:00 UT   01 55 01.3   +13 34 10     3.008    2.240   33.9   14.6   252   26.8 
2026-05-28 00:00 UT   01 56 41.7   +13 42 46     2.991    2.230   34.4   14.9   252   26.8 
2026-05-29 00:00 UT   01 58 22.7   +13 51 22     2.973    2.220   35.0   15.2   252   26.8 
2026-05-30 00:00 UT   02 00 04.4   +13 59 58     2.956    2.210   35.5   15.4   252   26.8 
2026-05-31 00:00 UT   02 01 46.7   +14 08 34     2.938    2.200   36.0   15.7   252   26.8 
2026-06-01 00:00 UT   02 03 29.7   +14 17 11     2.921    2.190   36.5   16.0   252   26.8 
2026-06-02 00:00 UT   02 05 13.4   +14 25 48     2.903    2.180   37.0   16.3   252   26.7 
2026-06-03 00:00 UT   02 06 57.8   +14 34 25     2.885    2.170   37.5   16.5   252   26.7 
2026-06-04 00:00 UT   02 08 42.9   +14 43 02     2.867    2.160   38.1   16.8   252   26.7 
2026-06-05 00:00 UT   02 10 28.7   +14 51 40     2.848    2.150   38.6   17.1   252   26.7 
2026-06-06 00:00 UT   02 12 15.3   +15 00 17     2.830    2.140   39.1   17.4   253   26.7 
2026-06-07 00:00 UT   02 14 02.6   +15 08 55     2.812    2.130   39.6   17.7   253   26.7 
2026-06-08 00:00 UT   02 15 50.8   +15 17 33     2.793    2.119   40.1   18.0   253   26.7 
2026-06-09 00:00 UT   02 17 39.7   +15 26 10     2.774    2.109   40.6   18.2   253   26.6 
2026-06-10 00:00 UT   02 19 29.4   +15 34 48     2.756    2.099   41.1   18.5   253   26.6 
2026-06-11 00:00 UT   02 21 20.0   +15 43 26     2.737    2.088   41.5   18.8   253   26.6 

    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.