2015 WO1
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	3 Nov 2025	26.8	1.778 AU	2.575 AU	12h58m	+03°08'	29.3°	15.9°

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 2015 WO1 are:

            e (Eccentricity)                : 0.4750157
            a (Semimajor axis)              : 1.4625446
            i (Inclination)                 : 13.78331
            Ω (Longitude of ascending node) : 62.84628
            ω (Argument of perihelion)      : 253.05124
            M (Mean anomaly)                : 277.32124
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 135.42500
            B (Latitude of perihelion)      : -13.17361
            P (Orbital period in years)     : 1.77            
        

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
2025-11-03 00:00 UT   12 58 55.6   +03 08 04     2.575    1.778   29.3   15.9   309   26.8 
2025-11-03 03:16 UT   12 59 13.1   +03 06 07     2.573    1.777   29.4   15.9   309   26.8 
2025-11-04 00:00 UT   13 01 04.3   +02 53 46     2.564    1.773   29.7   16.1   308   26.8 
2025-11-05 00:00 UT   13 03 13.4   +02 39 27     2.554    1.768   30.1   16.3   308   26.8 
2025-11-06 00:00 UT   13 05 23.0   +02 25 07     2.544    1.763   30.5   16.6   308   26.8 
2025-11-07 00:00 UT   13 07 33.1   +02 10 44     2.533    1.757   30.9   16.8   307   26.8 
2025-11-08 00:00 UT   13 09 43.7   +01 56 20     2.522    1.752   31.3   17.1   307   26.8 
2025-11-09 00:00 UT   13 11 54.8   +01 41 54     2.512    1.747   31.6   17.3   307   26.8 
2025-11-10 00:00 UT   13 14 06.5   +01 27 26     2.501    1.742   32.0   17.5   306   26.8 
2025-11-11 00:00 UT   13 16 18.7   +01 12 57     2.490    1.737   32.4   17.8   306   26.8 
2025-11-12 00:00 UT   13 18 31.4   +00 58 26     2.479    1.732   32.8   18.0   306   26.8 
2025-11-13 00:00 UT   13 20 44.8   +00 43 53     2.468    1.726   33.1   18.3   306   26.8 
2025-11-14 00:00 UT   13 22 58.7   +00 29 19     2.457    1.721   33.5   18.5   305   26.8 
2025-11-15 00:00 UT   13 25 13.2   +00 14 44     2.446    1.716   33.9   18.8   305   26.8 
2025-11-16 00:00 UT   13 27 28.3   +00 00 06     2.435    1.710   34.3   19.0   305   26.7 
2025-11-17 00:00 UT   13 29 44.0   +00 14 32     2.423    1.705   34.6   19.2   304   26.7 

    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.