(139) Juewa
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	7 Apr 2026	13.6	2.857 AU	2.869 AU	20h09m	-31°08'	79.2°	20.1°
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)                : 0.1702488
            a (Semimajor axis)              : 2.7856237
            i (Inclination)                 : 10.87123
            Ω (Longitude of ascending node) : 1.66762
            ω (Argument of perihelion)      : 167.31766
            M (Mean anomaly)                : 59.93275
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : -10.79429
            B (Latitude of perihelion)      : 2.37311
            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
2026-04-07 00:00 UT   20 09 19.9   -31 08 58     2.869    2.857   79.2   20.1   255   13.6 
2026-04-07 09:56 UT   20 09 48.6   -31 08 48     2.864    2.857   79.5   20.2   255   13.6 
2026-04-08 00:00 UT   20 10 29.1   -31 08 33     2.857    2.858   80.0   20.2   255   13.6 
2026-04-09 00:00 UT   20 11 37.4   -31 08 10     2.846    2.860   80.7   20.2   255   13.6 
2026-04-10 00:00 UT   20 12 44.7   -31 07 50     2.834    2.862   81.4   20.3   256   13.6 
2026-04-11 00:00 UT   20 13 51.0   -31 07 33     2.822    2.863   82.2   20.3   256   13.6 
2026-04-12 00:00 UT   20 14 56.3   -31 07 19     2.811    2.865   82.9   20.3   256   13.6 
2026-04-13 00:00 UT   20 16 00.5   -31 07 07     2.799    2.867   83.6   20.3   256   13.6 
2026-04-14 00:00 UT   20 17 03.8   -31 06 59     2.787    2.868   84.4   20.4   256   13.6 
2026-04-15 00:00 UT   20 18 06.0   -31 06 54     2.776    2.870   85.1   20.4   256   13.6 
2026-04-16 00:00 UT   20 19 07.1   -31 06 52     2.764    2.872   85.9   20.4   256   13.6 
2026-04-17 00:00 UT   20 20 07.2   -31 06 54     2.752    2.874   86.6   20.4   256   13.5 
2026-04-18 00:00 UT   20 21 06.2   -31 06 59     2.740    2.875   87.4   20.4   256   13.5 
2026-04-19 00:00 UT   20 22 04.1   -31 07 07     2.729    2.877   88.1   20.4   256   13.5 
2026-04-20 00:00 UT   20 23 00.8   -31 07 20     2.717    2.879   88.9   20.4   256   13.5 
2026-04-21 00:00 UT   20 23 56.5   -31 07 36     2.705    2.880   89.7   20.4   256   13.5 
2026-04-22 00:00 UT   20 24 51.0   -31 07 56     2.693    2.882   90.4   20.4   256   13.5 
2026-04-23 00:00 UT   20 25 44.3   -31 08 20     2.681    2.884   91.2   20.4   256   13.5 
2026-04-24 00:00 UT   20 26 36.5   -31 08 48     2.670    2.885   92.0   20.4   256   13.5 
2026-04-25 00:00 UT   20 27 27.5   -31 09 19     2.658    2.887   92.8   20.4   256   13.5 
2026-04-26 00:00 UT   20 28 17.3   -31 09 55     2.646    2.888   93.6   20.3   257   13.5 
2026-04-27 00:00 UT   20 29 06.0   -31 10 36     2.634    2.890   94.3   20.3   257   13.5 
2026-04-28 00:00 UT   20 29 53.4   -31 11 20     2.622    2.892   95.1   20.3   257   13.4 
2026-04-29 00:00 UT   20 30 39.6   -31 12 09     2.611    2.893   95.9   20.3   257   13.4 
2026-04-30 00:00 UT   20 31 24.5   -31 13 02     2.599    2.895   96.7   20.2   257   13.4 
2026-05-01 00:00 UT   20 32 08.3   -31 13 60     2.587    2.897   97.5   20.2   257   13.4 
2026-05-02 00:00 UT   20 32 50.7   -31 15 02     2.576    2.898   98.3   20.1   257   13.4 
2026-05-03 00:00 UT   20 33 31.9   -31 16 09     2.564    2.900   99.1   20.1   257   13.4 
2026-05-04 00:00 UT   20 34 11.8   -31 17 20     2.552    2.902   99.9   20.0   257   13.4 
2026-05-05 00:00 UT   20 34 50.3   -31 18 37     2.541    2.903  100.8   20.0   258   13.4 
2026-05-06 00:00 UT   20 35 27.6   -31 19 57     2.529    2.905  101.6   19.9   258   13.4 
2026-05-07 00:00 UT   20 36 03.5   -31 21 23     2.518    2.907  102.4   19.8   258   13.4 

    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.