(43) Ariadne
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	19 Jun 2025	13.0	2.294 AU	3.012 AU	03h07m	+19°42'	37.7°	15.7°
Opposition	8 Dec 2025	11.0	2.529 AU	1.544 AU	05h02m	+23°35'	179.0°	0.4°

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 Ariadne are:

            e (Eccentricity)                : 0.1683732
            a (Semimajor axis)              : 2.2028662
            i (Inclination)                 : 3.47074
            Ω (Longitude of ascending node) : 264.74585
            ω (Argument of perihelion)      : 16.11003
            M (Mean anomaly)                : 81.24122
            Epoch                           : 2025 May 05

            L (Longitude of perihelion)     : 280.82786
            B (Latitude of perihelion)      : 0.96253
            P (Orbital period in years)     : 3.27            
        

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
2025-06-19 00:00 UT   03 07 50.9   +19 42 01     3.012    2.294   37.7   15.7   257   13.0 
2025-06-19 13:23 UT   03 08 52.1   +19 45 59     3.009    2.295   38.0   15.8   257   13.0 
2025-06-20 00:00 UT   03 09 40.7   +19 49 07     3.006    2.295   38.2   15.9   257   13.0 
2025-06-21 00:00 UT   03 11 30.3   +19 56 07     3.001    2.297   38.7   16.1   257   13.0 
2025-06-22 00:00 UT   03 13 19.8   +20 03 03     2.995    2.299   39.2   16.2   257   13.0 
2025-06-23 00:00 UT   03 15 09.0   +20 09 53     2.989    2.301   39.7   16.4   257   13.0 
2025-06-24 00:00 UT   03 16 58.1   +20 16 39     2.983    2.303   40.2   16.6   257   13.0 
2025-06-25 00:00 UT   03 18 46.9   +20 23 19     2.977    2.304   40.8   16.7   257   13.0 
2025-06-26 00:00 UT   03 20 35.5   +20 29 54     2.971    2.306   41.3   16.9   258   13.0 
2025-06-27 00:00 UT   03 22 23.9   +20 36 23     2.964    2.308   41.8   17.1   258   13.0 
2025-06-28 00:00 UT   03 24 12.0   +20 42 48     2.958    2.310   42.3   17.2   258   13.0 
2025-06-29 00:00 UT   03 25 59.9   +20 49 07     2.952    2.312   42.8   17.4   258   13.0 
2025-06-30 00:00 UT   03 27 47.5   +20 55 21     2.945    2.313   43.3   17.6   258   13.0 
2025-07-01 00:00 UT   03 29 34.9   +21 01 30     2.938    2.315   43.9   17.7   258   13.0 
2025-07-02 00:00 UT   03 31 22.1   +21 07 34     2.932    2.317   44.4   17.9   258   13.1 
2025-07-03 00:00 UT   03 33 08.9   +21 13 32     2.925    2.319   44.9   18.0   258   13.1 
2025-07-04 00:00 UT   03 34 55.5   +21 19 26     2.918    2.320   45.4   18.2   258   13.1 
2025-07-05 00:00 UT   03 36 41.8   +21 25 14     2.911    2.322   46.0   18.3   258   13.1 
2025-07-06 00:00 UT   03 38 27.8   +21 30 57     2.904    2.324   46.5   18.5   259   13.1 
2025-07-07 00:00 UT   03 40 13.6   +21 36 35     2.896    2.326   47.0   18.7   259   13.1 
2025-07-08 00:00 UT   03 41 59.0   +21 42 07     2.889    2.327   47.6   18.8   259   13.1 

    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.