(438908) 2009 XO
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	11 Jun 2026	26.2	2.848 AU	2.891 AU	00h08m	+00°41'	77.4°	20.4°

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 2009 XO are:

            e (Eccentricity)                : 0.5433821
            a (Semimajor axis)              : 1.8591255
            i (Inclination)                 : 0.34850
            Ω (Longitude of ascending node) : 27.93271
            ω (Argument of perihelion)      : 140.52600
            M (Mean anomaly)                : 83.10090
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : -11.54077
            B (Latitude of perihelion)      : 0.22155
            P (Orbital period in years)     : 2.53            
        

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
2026-06-11 00:00 UT   00 08 54.3   +00 41 40     2.891    2.848   77.4   20.4   247   26.2 
2026-06-11 23:53 UT   00 09 37.3   +00 46 17     2.877    2.848   78.2   20.4   247   26.2 
2026-06-12 00:00 UT   00 09 37.5   +00 46 18     2.877    2.848   78.2   20.4   247   26.2 
2026-06-13 00:00 UT   00 10 19.9   +00 50 51     2.864    2.849   78.9   20.5   247   26.2 
2026-06-14 00:00 UT   00 11 01.5   +00 55 19     2.851    2.850   79.7   20.5   247   26.2 
2026-06-15 00:00 UT   00 11 42.3   +00 59 41     2.837    2.851   80.5   20.6   247   26.2 
2026-06-16 00:00 UT   00 12 22.2   +01 03 58     2.824    2.852   81.3   20.6   247   26.2 
2026-06-17 00:00 UT   00 13 01.4   +01 08 09     2.810    2.853   82.0   20.7   247   26.2 
2026-06-18 00:00 UT   00 13 39.6   +01 12 15     2.796    2.854   82.8   20.7   247   26.2 
2026-06-19 00:00 UT   00 14 17.1   +01 16 15     2.783    2.854   83.6   20.7   247   26.2 
2026-06-20 00:00 UT   00 14 53.6   +01 20 09     2.769    2.855   84.4   20.7   247   26.1 
2026-06-21 00:00 UT   00 15 29.3   +01 23 57     2.755    2.856   85.2   20.8   247   26.1 
2026-06-22 00:00 UT   00 16 04.0   +01 27 40     2.742    2.857   86.0   20.8   247   26.1 
2026-06-23 00:00 UT   00 16 37.9   +01 31 16     2.728    2.857   86.8   20.8   247   26.1 
2026-06-24 00:00 UT   00 17 10.8   +01 34 47     2.714    2.858   87.6   20.8   247   26.1 
2026-06-25 00:00 UT   00 17 42.8   +01 38 11     2.700    2.859   88.4   20.8   247   26.1 
2026-06-26 00:00 UT   00 18 13.8   +01 41 29     2.686    2.859   89.2   20.8   247   26.1 
2026-06-27 00:00 UT   00 18 43.9   +01 44 41     2.673    2.860   90.0   20.8   247   26.1 
2026-06-28 00:00 UT   00 19 13.0   +01 47 46     2.659    2.860   90.9   20.8   247   26.1 
2026-06-29 00:00 UT   00 19 41.1   +01 50 45     2.645    2.861   91.7   20.8   247   26.0 
2026-06-30 00:00 UT   00 20 08.2   +01 53 38     2.631    2.862   92.5   20.8   247   26.0 
2026-07-01 00:00 UT   00 20 34.3   +01 56 23     2.617    2.862   93.3   20.8   247   26.0 
2026-07-02 00:00 UT   00 20 59.3   +01 59 02     2.603    2.863   94.2   20.7   247   26.0 
2026-07-03 00:00 UT   00 21 23.3   +02 01 34     2.589    2.863   95.0   20.7   247   26.0 
2026-07-04 00:00 UT   00 21 46.2   +02 03 60     2.575    2.864   95.9   20.7   247   26.0 
2026-07-05 00:00 UT   00 22 08.0   +02 06 18     2.561    2.864   96.7   20.6   247   26.0 
2026-07-06 00:00 UT   00 22 28.8   +02 08 28     2.547    2.865   97.6   20.6   247   26.0 
2026-07-07 00:00 UT   00 22 48.4   +02 10 32     2.533    2.865   98.5   20.5   247   26.0 
2026-07-08 00:00 UT   00 23 06.8   +02 12 28     2.519    2.865   99.3   20.5   247   25.9 
2026-07-09 00:00 UT   00 23 24.1   +02 14 17     2.505    2.866  100.2   20.4   247   25.9 
2026-07-10 00:00 UT   00 23 40.2   +02 15 58     2.491    2.866  101.1   20.4   247   25.9 
2026-07-11 00:00 UT   00 23 55.2   +02 17 31     2.478    2.866  102.0   20.3   247   25.9 

    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.