(438908) 2009 XO
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	12 Jul 2026	25.9	2.867 AU	2.464 AU	00h24m	+02°18'	102.9°	20.2°

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
2026-07-12 00:00 UT   00 24 08.9   +02 18 56     2.464    2.867  102.9   20.2   247   25.9 
2026-07-12 00:42 UT   00 24 09.3   +02 18 59     2.463    2.867  102.9   20.2   247   25.9 
2026-07-13 00:00 UT   00 24 21.4   +02 20 14     2.450    2.867  103.8   20.1   247   25.9 
2026-07-14 00:00 UT   00 24 32.6   +02 21 23     2.436    2.867  104.7   20.1   247   25.9 
2026-07-15 00:00 UT   00 24 42.6   +02 22 24     2.422    2.868  105.6   20.0   247   25.8 
2026-07-16 00:00 UT   00 24 51.3   +02 23 17     2.409    2.868  106.5   19.9   247   25.8 
2026-07-17 00:00 UT   00 24 58.7   +02 24 02     2.395    2.868  107.4   19.8   247   25.8 
2026-07-18 00:00 UT   00 25 04.8   +02 24 38     2.381    2.868  108.3   19.7   247   25.8 
2026-07-19 00:00 UT   00 25 09.6   +02 25 05     2.368    2.869  109.3   19.5   247   25.8 
2026-07-20 00:00 UT   00 25 13.1   +02 25 24     2.354    2.869  110.2   19.4   247   25.8 
2026-07-21 00:00 UT   00 25 15.1   +02 25 35     2.341    2.869  111.2   19.3   247   25.7 
2026-07-22 00:00 UT   00 25 15.9   +02 25 36     2.328    2.869  112.1   19.2   247   25.7 
2026-07-23 00:00 UT   00 25 15.2   +02 25 29     2.315    2.869  113.1   19.0   247   25.7 
2026-07-24 00:00 UT   00 25 13.2   +02 25 13     2.301    2.869  114.0   18.9   247   25.7 
2026-07-25 00:00 UT   00 25 09.8   +02 24 47     2.288    2.869  115.0   18.7   247   25.7 
2026-07-26 00:00 UT   00 25 04.9   +02 24 13     2.275    2.869  116.0   18.6   247   25.7 
2026-07-27 00:00 UT   00 24 58.6   +02 23 29     2.262    2.869  117.0   18.4   247   25.6 
2026-07-28 00:00 UT   00 24 50.9   +02 22 37     2.250    2.869  118.0   18.2   247   25.6 
2026-07-29 00:00 UT   00 24 41.8   +02 21 35     2.237    2.869  118.9   18.0   247   25.6 
2026-07-30 00:00 UT   00 24 31.1   +02 20 23     2.224    2.869  120.0   17.9   247   25.6 
2026-07-31 00:00 UT   00 24 19.0   +02 19 02     2.212    2.869  121.0   17.7   247   25.6 
2026-08-01 00:00 UT   00 24 05.5   +02 17 32     2.199    2.869  122.0   17.5   247   25.5 
2026-08-02 00:00 UT   00 23 50.4   +02 15 51     2.187    2.869  123.0   17.3   247   25.5 
2026-08-03 00:00 UT   00 23 33.8   +02 14 02     2.175    2.869  124.0   17.0   247   25.5 
2026-08-04 00:00 UT   00 23 15.7   +02 12 02     2.163    2.869  125.1   16.8   247   25.5 
2026-08-05 00:00 UT   00 22 56.1   +02 09 53     2.151    2.869  126.1   16.6   247   25.5 
2026-08-06 00:00 UT   00 22 34.9   +02 07 33     2.139    2.869  127.2   16.4   247   25.5 
2026-08-07 00:00 UT   00 22 12.2   +02 05 04     2.128    2.868  128.2   16.1   247   25.4 
2026-08-08 00:00 UT   00 21 48.0   +02 02 25     2.116    2.868  129.3   15.9   247   25.4 
2026-08-09 00:00 UT   00 21 22.2   +01 59 36     2.105    2.868  130.4   15.6   247   25.4 
2026-08-10 00:00 UT   00 20 54.9   +01 56 36     2.094    2.868  131.5   15.4   247   25.4 
2026-08-11 00:00 UT   00 20 26.0   +01 53 27     2.083    2.867  132.6   15.1   247   25.3 

    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.