(354) Eleonora
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	27 Jul 2024	11.5	2.501 AU	3.321 AU	10h33m	+15°43'	30.6°	11.9°
Opposition	19 May 2025	10.3	2.767 AU	1.833 AU	16h11m	+07°27'	151.9°	9.9°

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 Eleonora are:

            e (Eccentricity)                : 0.1115073
            a (Semimajor axis)              : 2.7993322
            i (Inclination)                 : 18.36216
            Ω (Longitude of ascending node) : 140.21883
            ω (Argument of perihelion)      : 7.93013
            M (Mean anomaly)                : 350.38984
            Epoch                           : 2024 Mar 31

            L (Longitude of perihelion)     : 147.74995
            B (Latitude of perihelion)      : 2.49098
            P (Orbital period in years)     : 4.68            
        

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
2024-07-27 00:00 UT   10 33 35.7   +15 43 43     3.321    2.501   30.6   11.9   101   11.5 
2024-07-27 08:50 UT   10 34 14.6   +15 41 02     3.323    2.501   30.4   11.9   101   11.5 
2024-07-28 00:00 UT   10 35 21.4   +15 36 24     3.327    2.501   30.1   11.8   101   11.5 
2024-07-29 00:00 UT   10 37 07.1   +15 29 01     3.333    2.502   29.6   11.6   101   11.5 
2024-07-30 00:00 UT   10 38 52.9   +15 21 35     3.339    2.502   29.1   11.4   101   11.5 
2024-07-31 00:00 UT   10 40 38.7   +15 14 07     3.345    2.503   28.7   11.2   100   11.5 
2024-08-01 00:00 UT   10 42 24.6   +15 06 35     3.351    2.503   28.2   11.0   100   11.5 
2024-08-02 00:00 UT   10 44 10.5   +14 59 01     3.357    2.503   27.7   10.9   100   11.5 
2024-08-03 00:00 UT   10 45 56.4   +14 51 23     3.363    2.504   27.2   10.7    99   11.5 
2024-08-04 00:00 UT   10 47 42.4   +14 43 43     3.369    2.504   26.7   10.5    99   11.4 
2024-08-05 00:00 UT   10 49 28.4   +14 36 00     3.374    2.505   26.2   10.3    99   11.4 
2024-08-06 00:00 UT   10 51 14.4   +14 28 15     3.380    2.505   25.7   10.1    99   11.4 
2024-08-07 00:00 UT   10 53 00.4   +14 20 27     3.385    2.505   25.3    9.9    98   11.4 
2024-08-08 00:00 UT   10 54 46.5   +14 12 37     3.390    2.506   24.8    9.8    98   11.4 
2024-08-09 00:00 UT   10 56 32.6   +14 04 44     3.395    2.506   24.3    9.6    97   11.4 
2024-08-10 00:00 UT   10 58 18.7   +13 56 49     3.400    2.507   23.8    9.4    97   11.4 
2024-08-11 00:00 UT   11 00 04.8   +13 48 51     3.405    2.507   23.4    9.2    97   11.4 
2024-08-12 00:00 UT   11 01 50.9   +13 40 52     3.410    2.508   22.9    9.0    96   11.4 
2024-08-13 00:00 UT   11 03 37.0   +13 32 50     3.415    2.508   22.4    8.9    96   11.4 
2024-08-14 00:00 UT   11 05 23.2   +13 24 47     3.419    2.509   21.9    8.7    95   11.4 
2024-08-15 00:00 UT   11 07 09.3   +13 16 41     3.424    2.509   21.5    8.5    95   11.4 

    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.