(139) Juewa
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	4 Mar 2026	13.7	2.798 AU	3.229 AU	19h21m	-31°36'	56.0°	17.1°
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) : 1.66763
            ω (Argument of perihelion)      : 167.31766
            M (Mean anomaly)                : 59.93276
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : -10.79428
            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
2026-03-04 00:00 UT   19 21 46.7   -31 36 24     3.229    2.798   56.0   17.1   255   13.7 
2026-03-04 05:16 UT   19 22 07.8   -31 36 13     3.227    2.799   56.2   17.1   255   13.7 
2026-03-05 00:00 UT   19 23 22.6   -31 35 33     3.219    2.800   56.7   17.2   255   13.7 
2026-03-06 00:00 UT   19 24 58.0   -31 34 41     3.210    2.802   57.3   17.3   255   13.7 
2026-03-07 00:00 UT   19 26 32.7   -31 33 48     3.200    2.803   58.0   17.5   255   13.7 
2026-03-08 00:00 UT   19 28 06.7   -31 32 55     3.191    2.805   58.6   17.6   255   13.7 
2026-03-09 00:00 UT   19 29 40.2   -31 32 00     3.181    2.807   59.3   17.7   255   13.7 
2026-03-10 00:00 UT   19 31 12.9   -31 31 06     3.171    2.809   60.0   17.8   255   13.7 
2026-03-11 00:00 UT   19 32 45.0   -31 30 10     3.161    2.810   60.6   17.9   255   13.7 
2026-03-12 00:00 UT   19 34 16.3   -31 29 15     3.151    2.812   61.3   18.0   255   13.7 
2026-03-13 00:00 UT   19 35 47.0   -31 28 19     3.141    2.814   61.9   18.2   255   13.7 
2026-03-14 00:00 UT   19 37 17.0   -31 27 23     3.131    2.816   62.6   18.3   255   13.7 
2026-03-15 00:00 UT   19 38 46.3   -31 26 28     3.121    2.817   63.3   18.4   255   13.7 
2026-03-16 00:00 UT   19 40 14.9   -31 25 32     3.111    2.819   63.9   18.5   255   13.7 
2026-03-17 00:00 UT   19 41 42.7   -31 24 36     3.100    2.821   64.6   18.6   255   13.7 
2026-03-18 00:00 UT   19 43 09.7   -31 23 41     3.090    2.823   65.3   18.7   255   13.7 
2026-03-19 00:00 UT   19 44 36.1   -31 22 46     3.079    2.824   66.0   18.8   255   13.7 
2026-03-20 00:00 UT   19 46 01.6   -31 21 52     3.069    2.826   66.6   18.9   255   13.7 
2026-03-21 00:00 UT   19 47 26.4   -31 20 58     3.058    2.828   67.3   19.0   255   13.7 
2026-03-22 00:00 UT   19 48 50.4   -31 20 06     3.047    2.829   68.0   19.1   255   13.7 
2026-03-23 00:00 UT   19 50 13.5   -31 19 13     3.037    2.831   68.7   19.1   255   13.7 
2026-03-24 00:00 UT   19 51 35.9   -31 18 22     3.026    2.833   69.4   19.2   255   13.7 
2026-03-25 00:00 UT   19 52 57.5   -31 17 32     3.015    2.835   70.1   19.3   255   13.7 
2026-03-26 00:00 UT   19 54 18.2   -31 16 43     3.004    2.836   70.8   19.4   255   13.7 
2026-03-27 00:00 UT   19 55 38.2   -31 15 55     2.993    2.838   71.5   19.5   255   13.7 
2026-03-28 00:00 UT   19 56 57.2   -31 15 09     2.982    2.840   72.1   19.5   255   13.7 
2026-03-29 00:00 UT   19 58 15.5   -31 14 24     2.971    2.841   72.8   19.6   255   13.7 
2026-03-30 00:00 UT   19 59 32.8   -31 13 40     2.960    2.843   73.5   19.7   255   13.7 
2026-03-31 00:00 UT   20 00 49.3   -31 12 58     2.949    2.845   74.3   19.8   255   13.7 

    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.