(11) Parthenope
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	27 Jul 2024	11.5	2.314 AU	2.315 AU	03h03m	+12°34'	77.2°	25.3°
Opposition	13 Nov 2024	9.8	2.429 AU	1.444 AU	03h25m	+10°57'	172.5°	3.1°

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
2024-07-27 00:00 UT   03 03 02.4   +12 34 42     2.315    2.314   77.2   25.3   253   11.5 
2024-07-27 00:54 UT   03 03 05.4   +12 34 51     2.315    2.314   77.3   25.3   253   11.5 
2024-07-28 00:00 UT   03 04 24.1   +12 38 42     2.305    2.315   77.9   25.4   253   11.5 
2024-07-29 00:00 UT   03 05 45.2   +12 42 36     2.294    2.316   78.5   25.4   253   11.5 
2024-07-30 00:00 UT   03 07 05.5   +12 46 24     2.283    2.317   79.1   25.5   253   11.5 
2024-07-31 00:00 UT   03 08 25.1   +12 50 05     2.272    2.318   79.7   25.5   253   11.5 
2024-08-01 00:00 UT   03 09 44.0   +12 53 40     2.262    2.319   80.4   25.6   254   11.5 
2024-08-02 00:00 UT   03 11 02.1   +12 57 09     2.251    2.320   81.0   25.6   254   11.5 
2024-08-03 00:00 UT   03 12 19.4   +13 00 32     2.240    2.321   81.6   25.6   254   11.5 
2024-08-04 00:00 UT   03 13 35.9   +13 03 49     2.229    2.322   82.3   25.7   254   11.5 
2024-08-05 00:00 UT   03 14 51.5   +13 06 60     2.218    2.323   82.9   25.7   254   11.5 
2024-08-06 00:00 UT   03 16 06.4   +13 10 04     2.207    2.324   83.6   25.7   254   11.5 
2024-08-07 00:00 UT   03 17 20.4   +13 13 02     2.196    2.325   84.2   25.7   254   11.4 
2024-08-08 00:00 UT   03 18 33.5   +13 15 54     2.185    2.326   84.9   25.7   255   11.4 
2024-08-09 00:00 UT   03 19 45.7   +13 18 40     2.174    2.327   85.5   25.8   255   11.4 
2024-08-10 00:00 UT   03 20 57.0   +13 21 19     2.163    2.328   86.2   25.8   255   11.4 
2024-08-11 00:00 UT   03 22 07.4   +13 23 52     2.152    2.329   86.9   25.8   255   11.4 
2024-08-12 00:00 UT   03 23 16.8   +13 26 19     2.141    2.329   87.5   25.8   255   11.4 
2024-08-13 00:00 UT   03 24 25.3   +13 28 40     2.130    2.330   88.2   25.8   255   11.4 
2024-08-14 00:00 UT   03 25 32.8   +13 30 55     2.119    2.331   88.9   25.7   255   11.4 
2024-08-15 00:00 UT   03 26 39.4   +13 33 03     2.108    2.332   89.6   25.7   256   11.4 
2024-08-16 00:00 UT   03 27 44.9   +13 35 06     2.097    2.333   90.3   25.7   256   11.4 
2024-08-17 00:00 UT   03 28 49.4   +13 37 02     2.086    2.334   91.0   25.7   256   11.3 
2024-08-18 00:00 UT   03 29 52.9   +13 38 52     2.075    2.335   91.7   25.7   256   11.3 
2024-08-19 00:00 UT   03 30 55.2   +13 40 36     2.064    2.336   92.4   25.6   256   11.3 
2024-08-20 00:00 UT   03 31 56.6   +13 42 14     2.053    2.337   93.1   25.6   256   11.3 
2024-08-21 00:00 UT   03 32 56.8   +13 43 45     2.042    2.339   93.8   25.6   257   11.3 
2024-08-22 00:00 UT   03 33 55.9   +13 45 11     2.031    2.340   94.5   25.5   257   11.3 
2024-08-23 00:00 UT   03 34 53.8   +13 46 30     2.020    2.341   95.3   25.5   257   11.3 
2024-08-24 00:00 UT   03 35 50.6   +13 47 43     2.009    2.342   96.0   25.4   257   11.3 
2024-08-25 00:00 UT   03 36 46.2   +13 48 50     1.998    2.343   96.7   25.4   257   11.2 

    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.