(5) Astraea
ephemeris date magn radius delta ra dec elong phase
Today12 Nov 202411.92.289 AU3.203 AU14h00m-08°43'18.8°8.0°
Opposition5 Jun 202510.62.695 AU1.686 AU17h00m-14°51'172.1°3.0°
(5) Astraea - 2024-11-12
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 Astraea are:

            e (Eccentricity)                : 0.1872507
            a (Semimajor axis)              : 2.5758979
            i (Inclination)                 : 5.35914
            Ω (Longitude of ascending node) : 141.46063
            ω (Argument of perihelion)      : 359.23648
            M (Mean anomaly)                : 350.98291
            Epoch                           : 2024 Mar 31

            L (Longitude of perihelion)     : 140.70045
            B (Latitude of perihelion)      : -0.07131
            P (Orbital period in years)     : 4.13            
        

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
2024-11-12 00:00 UT   14 00 59.7   -08 43 29     3.203    2.289   18.8    8.0   300   11.9 
2024-11-12 05:52 UT   14 01 27.8   -08 45 48     3.203    2.289   19.0    8.1   300   11.9 
2024-11-13 00:00 UT   14 02 54.6   -08 52 56     3.201    2.291   19.3    8.2   300   11.9 
2024-11-14 00:00 UT   14 04 49.3   -09 02 18     3.198    2.293   19.8    8.4   299   11.9 
2024-11-15 00:00 UT   14 06 44.0   -09 11 37     3.196    2.294   20.3    8.6   299   11.9 
2024-11-16 00:00 UT   14 08 38.6   -09 20 50     3.193    2.296   20.9    8.8   299   11.9 
2024-11-17 00:00 UT   14 10 33.2   -09 29 60     3.190    2.298   21.4    9.0   298   11.9 
2024-11-18 00:00 UT   14 12 27.6   -09 39 05     3.188    2.300   21.9    9.2   298   11.9 
2024-11-19 00:00 UT   14 14 21.9   -09 48 05     3.185    2.302   22.4    9.4   298   11.9 
2024-11-20 00:00 UT   14 16 16.2   -09 57 01     3.181    2.304   22.9    9.6   298   11.9 
2024-11-21 00:00 UT   14 18 10.4   -10 05 52     3.178    2.305   23.4    9.8   297   12.0 
2024-11-22 00:00 UT   14 20 04.5   -10 14 39     3.175    2.307   23.9   10.0   297   12.0 
2024-11-23 00:00 UT   14 21 58.5   -10 23 21     3.172    2.309   24.4   10.2   297   12.0 
2024-11-24 00:00 UT   14 23 52.4   -10 31 58     3.168    2.311   25.0   10.4   296   12.0 
2024-11-25 00:00 UT   14 25 46.1   -10 40 30     3.165    2.313   25.5   10.6   296   12.0 
2024-11-26 00:00 UT   14 27 39.8   -10 48 58     3.161    2.315   26.0   10.8   296   12.0 
2024-11-27 00:00 UT   14 29 33.4   -10 57 20     3.157    2.317   26.5   11.0   296   12.0 
2024-11-28 00:00 UT   14 31 26.8   -11 05 38     3.153    2.319   27.0   11.2   295   12.0 
2024-11-29 00:00 UT   14 33 20.2   -11 13 51     3.149    2.320   27.6   11.3   295   12.0 


    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.