(43) Ariadne
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	15 Sep 2026	13.1	2.469 AU	3.358 AU	09h59m	+10°06'	23.6°	9.4°
Opposition	3 Apr 2027	10.1	2.127 AU	1.131 AU	12h41m	-11°09'	173.8°	2.9°

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)                : 0.1676991
            a (Semimajor axis)              : 2.2043749
            i (Inclination)                 : 3.46867
            Ω (Longitude of ascending node) : 264.73912
            ω (Argument of perihelion)      : 16.30992
            M (Mean anomaly)                : 201.54477
            Epoch                           : 2026 Jun 09

            L (Longitude of perihelion)     : 281.02074
            B (Latitude of perihelion)      : 0.97357
            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.

Ephemerides:

Date       Time       RA (2000)    DEC (2000)    delta   radius  elong  phase   PA    magn
2026-09-15 00:00 UT   09 59 01.4   +10 06 52     3.358    2.469   23.6    9.4   285   13.1 
2026-09-15 07:09 UT   09 59 31.2   +10 04 00     3.356    2.468   23.7    9.4   285   13.1 
2026-09-16 00:00 UT   10 00 41.5   +09 57 14     3.351    2.468   24.1    9.6   286   13.1 
2026-09-17 00:00 UT   10 02 21.4   +09 47 34     3.344    2.466   24.6    9.8   286   13.1 
2026-09-18 00:00 UT   10 04 01.2   +09 37 51     3.337    2.465   25.2   10.0   286   13.1 
2026-09-19 00:00 UT   10 05 40.8   +09 28 06     3.330    2.464   25.7   10.2   286   13.1 
2026-09-20 00:00 UT   10 07 20.3   +09 18 19     3.323    2.463   26.2   10.4   286   13.1 
2026-09-21 00:00 UT   10 08 59.6   +09 08 30     3.316    2.461   26.8   10.6   286   13.1 
2026-09-22 00:00 UT   10 10 38.8   +08 58 39     3.309    2.460   27.3   10.8   287   13.2 
2026-09-23 00:00 UT   10 12 17.8   +08 48 46     3.301    2.459   27.9   11.0   287   13.2 
2026-09-24 00:00 UT   10 13 56.7   +08 38 51     3.293    2.458   28.4   11.2   287   13.2 
2026-09-25 00:00 UT   10 15 35.4   +08 28 53     3.286    2.456   28.9   11.4   287   13.2 
2026-09-26 00:00 UT   10 17 13.9   +08 18 54     3.278    2.455   29.5   11.6   287   13.2 
2026-09-27 00:00 UT   10 18 52.3   +08 08 53     3.270    2.454   30.0   11.8   287   13.2 
2026-09-28 00:00 UT   10 20 30.5   +07 58 50     3.262    2.452   30.6   12.0   287   13.2 
2026-09-29 00:00 UT   10 22 08.6   +07 48 45     3.254    2.451   31.1   12.2   288   13.2 
2026-09-30 00:00 UT   10 23 46.5   +07 38 39     3.246    2.450   31.6   12.4   288   13.2 
2026-10-01 00:00 UT   10 25 24.3   +07 28 31     3.237    2.449   32.2   12.6   288   13.2 
2026-10-02 00:00 UT   10 27 01.9   +07 18 21     3.229    2.447   32.7   12.8   288   13.2 
2026-10-03 00:00 UT   10 28 39.3   +07 08 09     3.220    2.446   33.3   13.0   288   13.2 
2026-10-04 00:00 UT   10 30 16.6   +06 57 56     3.212    2.445   33.8   13.2   288   13.2 

    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.