(139) Juewa
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	2 Jul 2026	12.5	2.993 AU	2.045 AU	20h28m	-34°23'	154.3°	8.5°
Opposition	19 Jul 2026	12.4	3.019 AU	2.025 AU	20h11m	-35°09'	165.2°	4.9°

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 Juewa are:

            e (Eccentricity)                : 0.1703251
            a (Semimajor axis)              : 2.7860301
            i (Inclination)                 : 10.87118
            Ω (Longitude of ascending node) : 1.66010
            ω (Argument of perihelion)      : 167.36963
            M (Mean anomaly)                : 102.27210
            Epoch                           : 2026 Jun 09

            L (Longitude of perihelion)     : -10.75069
            B (Latitude of perihelion)      : 2.36353
            P (Orbital period in years)     : 4.65            
        

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
2026-07-02 00:00 UT   20 28 19.6   -34 23 36     2.045    2.993  154.3    8.5   289   12.5 
2026-07-02 07:52 UT   20 28 02.8   -34 24 46     2.044    2.994  154.6    8.4   290   12.5 
2026-07-03 00:00 UT   20 27 27.9   -34 27 06     2.041    2.995  155.2    8.2   291   12.5 
2026-07-04 00:00 UT   20 26 35.0   -34 30 31     2.038    2.996  156.1    7.9   293   12.5 
2026-07-05 00:00 UT   20 25 41.1   -34 33 51     2.036    2.998  157.0    7.6   295   12.5 
2026-07-06 00:00 UT   20 24 46.2   -34 37 06     2.033    2.999  157.8    7.3   297   12.5 
2026-07-07 00:00 UT   20 23 50.3   -34 40 14     2.031    3.001  158.7    7.1   299   12.5 
2026-07-08 00:00 UT   20 22 53.5   -34 43 17     2.029    3.002  159.5    6.8   301   12.5 
2026-07-09 00:00 UT   20 21 55.8   -34 46 13     2.027    3.004  160.3    6.6   304   12.5 
2026-07-10 00:00 UT   20 20 57.3   -34 49 03     2.026    3.005  161.0    6.3   307   12.4 
2026-07-11 00:00 UT   20 19 58.0   -34 51 45     2.024    3.007  161.7    6.1   310   12.4 
2026-07-12 00:00 UT   20 18 58.1   -34 54 20     2.023    3.008  162.3    5.9   313   12.4 
2026-07-13 00:00 UT   20 17 57.5   -34 56 48     2.023    3.009  162.9    5.7   317   12.4 
2026-07-14 00:00 UT   20 16 56.3   -34 59 08     2.022    3.011  163.5    5.5   320   12.4 
2026-07-15 00:00 UT   20 15 54.7   -35 01 20     2.022    3.012  164.0    5.3   324   12.4 
2026-07-16 00:00 UT   20 14 52.7   -35 03 23     2.022    3.014  164.4    5.2   328   12.4 
2026-07-17 00:00 UT   20 13 50.3   -35 05 18     2.023    3.015  164.7    5.1   333   12.4 
2026-07-18 00:00 UT   20 12 47.6   -35 07 05     2.023    3.017  165.0    5.0   337   12.4 
2026-07-19 00:00 UT   20 11 44.7   -35 08 42     2.024    3.018  165.2    5.0   342   12.4 
2026-07-20 00:00 UT   20 10 41.6   -35 10 10     2.026    3.019  165.2    4.9   346   12.4 
2026-07-21 00:00 UT   20 09 38.5   -35 11 30     2.027    3.021  165.2    4.9   351   12.4 
2026-07-22 00:00 UT   20 08 35.4   -35 12 40     2.029    3.022  165.1    4.9   356   12.4 
2026-07-23 00:00 UT   20 07 32.3   -35 13 40     2.031    3.024  165.0    5.0     0   12.4 
2026-07-24 00:00 UT   20 06 29.4   -35 14 32     2.033    3.025  164.7    5.1     5   12.4 
2026-07-25 00:00 UT   20 05 26.6   -35 15 13     2.036    3.026  164.3    5.2     9   12.4 
2026-07-26 00:00 UT   20 04 24.1   -35 15 45     2.039    3.028  163.9    5.3    13   12.4 
2026-07-27 00:00 UT   20 03 21.9   -35 16 08     2.042    3.029  163.4    5.5    17   12.4 
2026-07-28 00:00 UT   20 02 20.2   -35 16 20     2.045    3.031  162.9    5.7    21   12.4 
2026-07-29 00:00 UT   20 01 18.8   -35 16 24     2.049    3.032  162.3    5.8    24   12.5 
2026-07-30 00:00 UT   20 00 18.0   -35 16 17     2.053    3.033  161.6    6.1    27   12.5 
2026-07-31 00:00 UT   19 59 17.8   -35 16 01     2.057    3.035  160.9    6.3    30   12.5 
2026-08-01 00:00 UT   19 58 18.1   -35 15 36     2.062    3.036  160.2    6.5    33   12.5 

    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.