(11) Parthenope
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Opposition	13 Nov 2024	9.8	2.429 AU	1.444 AU	03h25m	+10°57'	172.5°	3.1°
Today	22 Dec 2024	10.7	2.471 AU	1.681 AU	02h57m	+10°27'	134.3°	16.5°

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 Parthenope are:

            e (Eccentricity)                : 0.0994330
            a (Semimajor axis)              : 2.4533692
            i (Inclination)                 : 4.63153
            Ω (Longitude of ascending node) : 125.50589
            ω (Argument of perihelion)      : 196.07085
            M (Mean anomaly)                : 71.50262
            Epoch                           : 2024 Oct 17

            L (Longitude of perihelion)     : 141.52696
            B (Latitude of perihelion)      : -1.28084
            P (Orbital period in years)     : 3.84            
        

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
2024-12-22 00:00 UT   02 57 11.8   +10 27 04     1.681    2.471  134.3   16.5    67   10.7 
2024-12-22 18:32 UT   02 57 00.2   +10 28 34     1.689    2.472  133.5   16.8    68   10.7 
2024-12-23 00:00 UT   02 56 57.0   +10 29 01     1.692    2.472  133.3   16.8    68   10.7 
2024-12-24 00:00 UT   02 56 44.0   +10 31 06     1.702    2.473  132.2   17.1    68   10.8 
2024-12-25 00:00 UT   02 56 32.8   +10 33 19     1.713    2.474  131.2   17.4    68   10.8 
2024-12-26 00:00 UT   02 56 23.3   +10 35 40     1.724    2.475  130.2   17.7    68   10.8 
2024-12-27 00:00 UT   02 56 15.6   +10 38 08     1.735    2.476  129.1   17.9    68   10.8 
2024-12-28 00:00 UT   02 56 09.6   +10 40 45     1.746    2.477  128.1   18.2    69   10.9 
2024-12-29 00:00 UT   02 56 05.4   +10 43 29     1.758    2.478  127.1   18.4    69   10.9 
2024-12-30 00:00 UT   02 56 02.9   +10 46 21     1.769    2.479  126.1   18.7    69   10.9 
2024-12-31 00:00 UT   02 56 02.2   +10 49 20     1.781    2.481  125.1   18.9    69   10.9 
2025-01-01 00:00 UT   02 56 03.2   +10 52 26     1.793    2.482  124.1   19.1    69   10.9 
2025-01-02 00:00 UT   02 56 05.9   +10 55 40     1.805    2.483  123.1   19.4    70   11.0 
2025-01-03 00:00 UT   02 56 10.4   +10 59 00     1.817    2.484  122.2   19.6    70   11.0 
2025-01-04 00:00 UT   02 56 16.5   +11 02 27     1.829    2.485  121.2   19.8    70   11.0 
2025-01-05 00:00 UT   02 56 24.3   +11 06 01     1.841    2.486  120.2   20.0    70   11.0 
2025-01-06 00:00 UT   02 56 33.8   +11 09 42     1.853    2.487  119.3   20.2    70   11.1 
2025-01-07 00:00 UT   02 56 45.0   +11 13 29     1.866    2.488  118.3   20.4    70   11.1 
2025-01-08 00:00 UT   02 56 57.8   +11 17 22     1.879    2.489  117.4   20.5    71   11.1 
2025-01-09 00:00 UT   02 57 12.2   +11 21 22     1.891    2.490  116.5   20.7    71   11.1 
2025-01-10 00:00 UT   02 57 28.3   +11 25 27     1.904    2.491  115.5   20.9    71   11.1 
2025-01-11 00:00 UT   02 57 45.9   +11 29 38     1.917    2.492  114.6   21.0    71   11.2 
2025-01-12 00:00 UT   02 58 05.1   +11 33 54     1.930    2.493  113.7   21.2    71   11.2 
2025-01-13 00:00 UT   02 58 25.8   +11 38 16     1.943    2.494  112.8   21.3    71   11.2 
2025-01-14 00:00 UT   02 58 48.0   +11 42 43     1.956    2.495  111.9   21.5    71   11.2 
2025-01-15 00:00 UT   02 59 11.8   +11 47 16     1.969    2.497  111.0   21.6    72   11.2 
2025-01-16 00:00 UT   02 59 37.0   +11 51 53     1.983    2.498  110.1   21.7    72   11.3 
2025-01-17 00:00 UT   03 00 03.7   +11 56 35     1.996    2.499  109.2   21.8    72   11.3 
2025-01-18 00:00 UT   03 00 31.9   +12 01 22     2.009    2.500  108.3   21.9    72   11.3 
2025-01-19 00:00 UT   03 01 01.5   +12 06 13     2.023    2.501  107.4   22.0    72   11.3 
2025-01-20 00:00 UT   03 01 32.5   +12 11 08     2.037    2.502  106.6   22.1    72   11.3 
2025-01-21 00:00 UT   03 02 04.9   +12 16 08     2.050    2.503  105.7   22.2    72   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.