(36) Atalante
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	18 Sep 2025	14.1	2.931 AU	3.925 AU	11h22m	+07°17'	7.2°	2.5°
Opposition	5 Apr 2026	13.4	3.391 AU	2.397 AU	12h44m	-13°29'	172.0°	2.4°

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 Atalante are:

            e (Eccentricity)                : 0.3063778
            a (Semimajor axis)              : 2.7451725
            i (Inclination)                 : 18.37277
            Ω (Longitude of ascending node) : 358.16566
            ω (Argument of perihelion)      : 47.79748
            M (Mean anomaly)                : 56.17174
            Epoch                           : 2025 May 05

            L (Longitude of perihelion)     : 44.46831
            B (Latitude of perihelion)      : 13.50268
            P (Orbital period in years)     : 4.55            
        

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
2025-09-18 00:00 UT   11 22 05.0   +07 17 12     3.925    2.931    7.2    2.5   317   14.1 
2025-09-18 19:07 UT   11 23 08.3   +07 08 26     3.926    2.933    7.6    2.6   316   14.2 
2025-09-19 00:00 UT   11 23 24.5   +07 06 12     3.926    2.934    7.7    2.6   315   14.2 
2025-09-20 00:00 UT   11 24 43.7   +06 55 13     3.927    2.937    8.3    2.8   313   14.2 
2025-09-21 00:00 UT   11 26 02.8   +06 44 15     3.928    2.940    8.8    3.0   312   14.2 
2025-09-22 00:00 UT   11 27 21.7   +06 33 18     3.928    2.943    9.4    3.2   310   14.2 
2025-09-23 00:00 UT   11 28 40.4   +06 22 21     3.929    2.945   10.0    3.4   309   14.2 
2025-09-24 00:00 UT   11 29 58.9   +06 11 26     3.929    2.948   10.5    3.6   308   14.2 
2025-09-25 00:00 UT   11 31 17.2   +06 00 32     3.929    2.951   11.1    3.8   307   14.2 
2025-09-26 00:00 UT   11 32 35.2   +05 49 38     3.929    2.954   11.7    3.9   306   14.3 
2025-09-27 00:00 UT   11 33 53.1   +05 38 46     3.929    2.957   12.3    4.1   305   14.3 
2025-09-28 00:00 UT   11 35 10.8   +05 27 55     3.928    2.960   12.9    4.3   305   14.3 
2025-09-29 00:00 UT   11 36 28.2   +05 17 05     3.928    2.963   13.5    4.5   304   14.3 
2025-09-30 00:00 UT   11 37 45.4   +05 06 16     3.927    2.965   14.1    4.7   303   14.3 
2025-10-01 00:00 UT   11 39 02.4   +04 55 29     3.926    2.968   14.7    4.9   303   14.3 
2025-10-02 00:00 UT   11 40 19.2   +04 44 42     3.925    2.971   15.3    5.1   302   14.3 
2025-10-03 00:00 UT   11 41 35.8   +04 33 57     3.924    2.974   15.9    5.3   302   14.3 
2025-10-04 00:00 UT   11 42 52.1   +04 23 13     3.922    2.977   16.5    5.5   301   14.4 
2025-10-05 00:00 UT   11 44 08.2   +04 12 30     3.921    2.980   17.1    5.7   301   14.4 
2025-10-06 00:00 UT   11 45 24.1   +04 01 49     3.919    2.982   17.7    5.9   300   14.4 
2025-10-07 00:00 UT   11 46 39.7   +03 51 09     3.917    2.985   18.3    6.1   300   14.4 
2025-10-08 00:00 UT   11 47 55.2   +03 40 30     3.915    2.988   19.0    6.2   300   14.4 
2025-10-09 00:00 UT   11 49 10.3   +03 29 52     3.913    2.991   19.6    6.4   299   14.4 
2025-10-10 00:00 UT   11 50 25.3   +03 19 16     3.911    2.994   20.2    6.6   299   14.4 
2025-10-11 00:00 UT   11 51 40.0   +03 08 41     3.908    2.996   20.8    6.8   299   14.4 

    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.