(354) Eleonora
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	31 Jan 2023	12.2	2.881 AU	3.112 AU	01h27m	-08°35'	67.4°	18.4°
Opposition	18 Jan 2024	9.8	2.524 AU	1.553 AU	07h53m	+09°04'	168.4°	4.5°

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)                : 0.1115428
            a (Semimajor axis)              : 2.8012344
            i (Inclination)                 : 18.36036
            Ω (Longitude of ascending node) : 140.24569
            ω (Argument of perihelion)      : 7.51912
            M (Mean anomaly)                : 266.60749
            Epoch                           : 2023 Feb 25

            L (Longitude of perihelion)     : 147.38610
            B (Latitude of perihelion)      : 2.36234
            P (Orbital period in years)     : 4.69            
        

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
2023-01-31 00:00 UT   01 27 37.4   -08 35 00     3.112    2.881   67.4   18.4    74   12.2 
2023-01-31 22:42 UT   01 28 34.7   -08 25 50     3.122    2.880   66.8   18.3    75   12.2 
2023-02-01 00:00 UT   01 28 38.0   -08 25 18     3.123    2.880   66.8   18.3    75   12.2 
2023-02-02 00:00 UT   01 29 39.1   -08 15 35     3.134    2.879   66.1   18.2    75   12.2 
2023-02-03 00:00 UT   01 30 41.0   -08 05 51     3.145    2.878   65.4   18.1    75   12.2 
2023-02-04 00:00 UT   01 31 43.5   -07 56 07     3.156    2.877   64.7   18.0    75   12.2 
2023-02-05 00:00 UT   01 32 46.6   -07 46 21     3.167    2.876   64.0   18.0    76   12.2 
2023-02-06 00:00 UT   01 33 50.3   -07 36 35     3.178    2.875   63.4   17.9    76   12.2 
2023-02-07 00:00 UT   01 34 54.7   -07 26 48     3.189    2.874   62.7   17.8    76   12.2 
2023-02-08 00:00 UT   01 35 59.6   -07 17 00     3.199    2.873   62.1   17.7    77   12.2 
2023-02-09 00:00 UT   01 37 05.2   -07 07 12     3.210    2.871   61.4   17.6    77   12.2 
2023-02-10 00:00 UT   01 38 11.4   -06 57 24     3.221    2.870   60.7   17.4    77   12.2 
2023-02-11 00:00 UT   01 39 18.1   -06 47 35     3.231    2.869   60.1   17.3    77   12.2 
2023-02-12 00:00 UT   01 40 25.4   -06 37 45     3.241    2.868   59.4   17.2    78   12.2 
2023-02-13 00:00 UT   01 41 33.3   -06 27 56     3.252    2.867   58.8   17.1    78   12.2 
2023-02-14 00:00 UT   01 42 41.8   -06 18 06     3.262    2.866   58.1   17.0    78   12.2 
2023-02-15 00:00 UT   01 43 50.8   -06 08 16     3.272    2.865   57.5   16.9    79   12.2 
2023-02-16 00:00 UT   01 45 00.4   -05 58 26     3.282    2.864   56.8   16.8    79   12.2 
2023-02-17 00:00 UT   01 46 10.5   -05 48 36     3.292    2.863   56.2   16.7    79   12.2 
2023-02-18 00:00 UT   01 47 21.1   -05 38 47     3.302    2.862   55.6   16.5    79   12.2 
2023-02-19 00:00 UT   01 48 32.3   -05 28 57     3.312    2.860   54.9   16.4    80   12.2 
2023-02-20 00:00 UT   01 49 44.1   -05 19 07     3.321    2.859   54.3   16.3    80   12.2 
2023-02-21 00:00 UT   01 50 56.3   -05 09 18     3.331    2.858   53.7   16.2    80   12.2 
2023-02-22 00:00 UT   01 52 09.0   -04 59 30     3.340    2.857   53.1   16.1    81   12.2 
2023-02-23 00:00 UT   01 53 22.3   -04 49 41     3.350    2.856   52.4   15.9    81   12.2 
2023-02-24 00:00 UT   01 54 36.0   -04 39 54     3.359    2.855   51.8   15.8    81   12.2 
2023-02-25 00:00 UT   01 55 50.2   -04 30 07     3.368    2.854   51.2   15.7    82   12.2 
2023-02-26 00:00 UT   01 57 04.9   -04 20 20     3.377    2.853   50.6   15.5    82   12.2 

    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.