(234) Barbara
ephemeris date magn radius delta ra dec elong phase
Today11 May 202514.92.934 AU3.092 AU08h15m+18°51'71.6°19.1°
Opposition7 Apr 202613.12.744 AU1.780 AU13h34m+10°58'160.7°6.9°
(234) Barbara - 2025-05-11
astro.vanbuitenen.nl


 
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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 Barbara are:

            e (Eccentricity)                : 0.2459455
            a (Semimajor axis)              : 2.3847370
            i (Inclination)                 : 15.38289
            Ω (Longitude of ascending node) : 144.43357
            ω (Argument of perihelion)      : 192.33814
            M (Mean anomaly)                : 152.98302
            Epoch                           : 2025 May 05

            L (Longitude of perihelion)     : 156.34254
            B (Latitude of perihelion)      : -3.24942
            P (Orbital period in years)     : 3.68            
        

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. A more printer-friendly version of the same chart can be found below.




Ephemerides:
Date       Time       RA (2000)    DEC (2000)    delta   radius  elong  phase   PA    magn
2025-05-11 00:00 UT   08 15 28.2   +18 51 07     3.092    2.934   71.6   19.1   103   14.9 
2025-05-11 15:04 UT   08 16 08.6   +18 50 45     3.101    2.935   71.2   19.0   103   14.9 
2025-05-12 00:00 UT   08 16 32.7   +18 50 31     3.106    2.935   70.9   19.0   103   14.9 
2025-05-13 00:00 UT   08 17 37.7   +18 49 50     3.120    2.936   70.2   18.9   103   14.9 
2025-05-14 00:00 UT   08 18 43.3   +18 49 04     3.134    2.936   69.5   18.8   103   14.9 
2025-05-15 00:00 UT   08 19 49.5   +18 48 13     3.148    2.937   68.8   18.7   103   14.9 
2025-05-16 00:00 UT   08 20 56.2   +18 47 17     3.162    2.938   68.1   18.6   104   14.9 
2025-05-17 00:00 UT   08 22 03.5   +18 46 17     3.176    2.939   67.4   18.5   104   14.9 
2025-05-18 00:00 UT   08 23 11.4   +18 45 11     3.189    2.939   66.7   18.4   104   14.9 
2025-05-19 00:00 UT   08 24 19.7   +18 44 01     3.203    2.940   66.0   18.3   104   14.9 
2025-05-20 00:00 UT   08 25 28.6   +18 42 46     3.217    2.941   65.3   18.2   104   14.9 
2025-05-21 00:00 UT   08 26 38.0   +18 41 26     3.230    2.942   64.6   18.1   104   14.9 
2025-05-22 00:00 UT   08 27 47.8   +18 40 01     3.244    2.942   63.9   18.0   104   15.0 
2025-05-23 00:00 UT   08 28 58.2   +18 38 31     3.257    2.943   63.2   17.9   104   15.0 
2025-05-24 00:00 UT   08 30 09.0   +18 36 57     3.270    2.944   62.5   17.8   104   15.0 
2025-05-25 00:00 UT   08 31 20.3   +18 35 18     3.283    2.944   61.8   17.7   104   15.0 
2025-05-26 00:00 UT   08 32 32.1   +18 33 34     3.297    2.945   61.2   17.5   104   15.0 
2025-05-27 00:00 UT   08 33 44.3   +18 31 46     3.310    2.946   60.5   17.4   104   15.0 
2025-05-28 00:00 UT   08 34 56.9   +18 29 53     3.322    2.946   59.8   17.3   105   15.0 
2025-05-29 00:00 UT   08 36 10.0   +18 27 55     3.335    2.947   59.1   17.2   105   15.0 
2025-05-30 00:00 UT   08 37 23.4   +18 25 53     3.348    2.948   58.5   17.0   105   15.0 
2025-05-31 00:00 UT   08 38 37.3   +18 23 46     3.361    2.948   57.8   16.9   105   15.0 
2025-06-01 00:00 UT   08 39 51.6   +18 21 35     3.373    2.949   57.1   16.8   105   15.0 
2025-06-02 00:00 UT   08 41 06.2   +18 19 20     3.386    2.949   56.5   16.7   105   15.0 
2025-06-03 00:00 UT   08 42 21.2   +18 16 60     3.398    2.950   55.8   16.5   105   15.0 
2025-06-04 00:00 UT   08 43 36.6   +18 14 35     3.410    2.951   55.2   16.4   105   15.0 
2025-06-05 00:00 UT   08 44 52.3   +18 12 06     3.422    2.951   54.5   16.3   105   15.0 
2025-06-06 00:00 UT   08 46 08.4   +18 09 33     3.434    2.952   53.8   16.1   105   15.0 
2025-06-07 00:00 UT   08 47 24.8   +18 06 56     3.446    2.952   53.2   16.0   105   15.0 
2025-06-08 00:00 UT   08 48 41.5   +18 04 15     3.458    2.953   52.5   15.8   105   15.0 
2025-06-09 00:00 UT   08 49 58.5   +18 01 29     3.470    2.953   51.9   15.7   105   15.0 


    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.