(43) Ariadne
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	5 May 2025	12.7	2.209 AU	3.161 AU	01h43m	+13°00'	15.9°	7.2°
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
2025-05-05 00:00 UT   01 43 11.0   +13 00 13     3.161    2.209   15.9    7.2   257   12.7 
2025-05-05 23:02 UT   01 45 01.4   +13 10 20     3.160    2.210   16.4    7.4   256   12.7 
2025-05-06 00:00 UT   01 45 06.0   +13 10 45     3.160    2.211   16.4    7.4   256   12.7 
2025-05-07 00:00 UT   01 47 00.9   +13 21 13     3.159    2.212   16.9    7.6   256   12.7 
2025-05-08 00:00 UT   01 48 55.8   +13 31 37     3.157    2.214   17.3    7.8   256   12.7 
2025-05-09 00:00 UT   01 50 50.5   +13 41 57     3.156    2.216   17.8    8.0   256   12.7 
2025-05-10 00:00 UT   01 52 45.2   +13 52 13     3.154    2.218   18.3    8.2   256   12.8 
2025-05-11 00:00 UT   01 54 39.8   +14 02 25     3.153    2.220   18.7    8.4   256   12.8 
2025-05-12 00:00 UT   01 56 34.3   +14 12 33     3.151    2.222   19.2    8.6   256   12.8 
2025-05-13 00:00 UT   01 58 28.8   +14 22 37     3.149    2.224   19.7    8.8   256   12.8 
2025-05-14 00:00 UT   02 00 23.1   +14 32 37     3.147    2.226   20.2    9.0   256   12.8 
2025-05-15 00:00 UT   02 02 17.4   +14 42 32     3.145    2.228   20.6    9.2   256   12.8 
2025-05-16 00:00 UT   02 04 11.6   +14 52 24     3.143    2.230   21.1    9.4   256   12.8 
2025-05-17 00:00 UT   02 06 05.7   +15 02 11     3.141    2.232   21.6    9.6   256   12.8 
2025-05-18 00:00 UT   02 07 59.8   +15 11 54     3.139    2.234   22.0    9.8   256   12.8 
2025-05-19 00:00 UT   02 09 53.7   +15 21 32     3.136    2.236   22.5   10.0   256   12.8 
2025-05-20 00:00 UT   02 11 47.6   +15 31 07     3.134    2.238   23.0   10.2   256   12.8 
2025-05-21 00:00 UT   02 13 41.4   +15 40 37     3.131    2.239   23.5   10.4   255   12.9 
2025-05-22 00:00 UT   02 15 35.1   +15 50 02     3.128    2.241   23.9   10.6   255   12.9 

    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.