(36) Atalante
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Opposition	5 Apr 2026	13.4	3.390 AU	2.397 AU	12h44m	-13°29'	172.0°	2.4°
Today	11 May 2026	14.0	3.444 AU	2.627 AU	12h17m	-11°59'	138.0°	11.3°

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)                : 0.3063057
            a (Semimajor axis)              : 2.7446611
            i (Inclination)                 : 18.37428
            Ω (Longitude of ascending node) : 358.16300
            ω (Argument of perihelion)      : 47.76897
            M (Mean anomaly)                : 99.55969
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 44.43679
            B (Latitude of perihelion)      : 13.49756
            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.

Ephemerides:

Date       Time       RA (2000)    DEC (2000)    delta   radius  elong  phase   PA    magn
2026-05-11 00:00 UT   12 17 30.8   -11 59 31     2.627    3.444  138.0   11.3   103   14.0 
2026-05-11 04:58 UT   12 17 25.0   -11 59 07     2.629    3.445  137.8   11.4   103   14.0 
2026-05-12 00:00 UT   12 17 03.5   -11 57 35     2.638    3.446  136.9   11.5   104   14.0 
2026-05-13 00:00 UT   12 16 37.5   -11 55 43     2.649    3.447  135.9   11.8   104   14.1 
2026-05-14 00:00 UT   12 16 12.7   -11 53 55     2.661    3.449  134.8   12.0   104   14.1 
2026-05-15 00:00 UT   12 15 49.1   -11 52 12     2.672    3.450  133.8   12.2   105   14.1 
2026-05-16 00:00 UT   12 15 26.8   -11 50 34     2.684    3.451  132.8   12.4   105   14.1 
2026-05-17 00:00 UT   12 15 05.7   -11 49 01     2.696    3.453  131.7   12.6   105   14.1 
2026-05-18 00:00 UT   12 14 45.9   -11 47 32     2.708    3.454  130.7   12.8   106   14.2 
2026-05-19 00:00 UT   12 14 27.3   -11 46 09     2.721    3.456  129.7   13.0   106   14.2 
2026-05-20 00:00 UT   12 14 10.0   -11 44 51     2.733    3.457  128.7   13.2   106   14.2 
2026-05-21 00:00 UT   12 13 53.9   -11 43 38     2.746    3.458  127.7   13.4   106   14.2 
2026-05-22 00:00 UT   12 13 39.1   -11 42 31     2.758    3.460  126.7   13.6   107   14.2 
2026-05-23 00:00 UT   12 13 25.5   -11 41 29     2.771    3.461  125.7   13.7   107   14.2 
2026-05-24 00:00 UT   12 13 13.2   -11 40 33     2.785    3.462  124.7   13.9   107   14.3 
2026-05-25 00:00 UT   12 13 02.1   -11 39 42     2.798    3.463  123.7   14.1   107   14.3 
2026-05-26 00:00 UT   12 12 52.2   -11 38 57     2.811    3.465  122.7   14.2   108   14.3 
2026-05-27 00:00 UT   12 12 43.5   -11 38 18     2.825    3.466  121.7   14.4   108   14.3 
2026-05-28 00:00 UT   12 12 36.1   -11 37 44     2.838    3.467  120.7   14.5   108   14.3 
2026-05-29 00:00 UT   12 12 29.8   -11 37 16     2.852    3.469  119.8   14.7   108   14.3 
2026-05-30 00:00 UT   12 12 24.8   -11 36 54     2.866    3.470  118.8   14.8   109   14.4 
2026-05-31 00:00 UT   12 12 20.9   -11 36 37     2.880    3.471  117.9   15.0   109   14.4 
2026-06-01 00:00 UT   12 12 18.1   -11 36 27     2.894    3.472  116.9   15.1   109   14.4 
2026-06-02 00:00 UT   12 12 16.6   -11 36 22     2.908    3.474  116.0   15.2   109   14.4 
2026-06-03 00:00 UT   12 12 16.2   -11 36 23     2.922    3.475  115.0   15.3   109   14.4 
2026-06-04 00:00 UT   12 12 16.9   -11 36 29     2.937    3.476  114.1   15.5   109   14.4 
2026-06-05 00:00 UT   12 12 18.8   -11 36 42     2.951    3.477  113.1   15.6   110   14.4 
2026-06-06 00:00 UT   12 12 21.8   -11 37 00     2.966    3.479  112.2   15.7   110   14.5 
2026-06-07 00:00 UT   12 12 26.0   -11 37 25     2.981    3.480  111.3   15.8   110   14.5 
2026-06-08 00:00 UT   12 12 31.2   -11 37 55     2.995    3.481  110.4   15.9   110   14.5 
2026-06-09 00:00 UT   12 12 37.5   -11 38 31     3.010    3.482  109.4   16.0   110   14.5 
2026-06-10 00:00 UT   12 12 44.9   -11 39 13     3.025    3.483  108.5   16.0   111   14.5 

    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.