1999 AO10
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	29 Sep 2026	26.2	0.912 AU	0.818 AU	08h38m	+21°22'	59.1°	70.5°

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 1999 AO10 are:

            e (Eccentricity)                : 0.1109037
            a (Semimajor axis)              : 0.9120148
            i (Inclination)                 : 2.57971
            Ω (Longitude of ascending node) : 312.17032
            ω (Argument of perihelion)      : 7.22176
            M (Mean anomaly)                : 316.93101
            Epoch                           : 2026 Jun 09

            L (Longitude of perihelion)     : 319.38484
            B (Latitude of perihelion)      : 0.32419
            P (Orbital period in years)     : 0.87            
        

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
2026-09-29 00:00 UT   08 38 12.0   +21 22 33     0.818    0.912   59.1   70.5   286   26.2 
2026-09-29 21:59 UT   08 41 32.6   +21 09 14     0.820    0.914   59.2   70.3   287   26.2 
2026-09-30 00:00 UT   08 41 51.0   +21 08 00     0.821    0.914   59.2   70.3   287   26.2 
2026-10-01 00:00 UT   08 45 29.4   +20 53 10     0.823    0.916   59.3   70.1   287   26.2 
2026-10-02 00:00 UT   08 49 07.0   +20 38 01     0.826    0.918   59.4   69.8   287   26.2 
2026-10-03 00:00 UT   08 52 43.9   +20 22 36     0.828    0.920   59.5   69.6   287   26.2 
2026-10-04 00:00 UT   08 56 20.1   +20 06 54     0.830    0.922   59.6   69.4   288   26.2 
2026-10-05 00:00 UT   08 59 55.6   +19 50 55     0.833    0.924   59.7   69.2   288   26.2 
2026-10-06 00:00 UT   09 03 30.3   +19 34 40     0.835    0.926   59.8   69.0   288   26.2 
2026-10-07 00:00 UT   09 07 04.3   +19 18 09     0.837    0.928   59.9   68.8   288   26.2 
2026-10-08 00:00 UT   09 10 37.6   +19 01 22     0.839    0.930   60.0   68.6   289   26.2 

    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.