(285571) 2000 PQ9
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	7 Dec 2025	23.7	2.520 AU	2.468 AU	11h23m	-04°20'	81.6°	22.8°

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 2000 PQ9 are:

            e (Eccentricity)                : 0.4324411
            a (Semimajor axis)              : 1.9035657
            i (Inclination)                 : 13.48267
            Ω (Longitude of ascending node) : 297.16245
            ω (Argument of perihelion)      : 7.05697
            M (Mean anomaly)                : 231.96153
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 304.02681
            B (Latitude of perihelion)      : 1.64141
            P (Orbital period in years)     : 2.63            
        

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
2025-12-07 00:00 UT   11 23 16.1   -04 20 27     2.468    2.520   81.6   22.8   292   23.7 
2025-12-07 18:56 UT   11 23 55.3   -04 28 53     2.455    2.518   82.1   22.8   292   23.7 
2025-12-08 00:00 UT   11 24 05.7   -04 31 08     2.452    2.517   82.3   22.8   292   23.7 
2025-12-09 00:00 UT   11 24 54.5   -04 41 48     2.436    2.514   83.1   22.9   292   23.7 
2025-12-10 00:00 UT   11 25 42.5   -04 52 27     2.419    2.512   83.8   22.9   293   23.7 
2025-12-11 00:00 UT   11 26 29.6   -05 03 05     2.403    2.509   84.6   23.0   293   23.6 
2025-12-12 00:00 UT   11 27 16.0   -05 13 43     2.386    2.506   85.3   23.1   293   23.6 
2025-12-13 00:00 UT   11 28 01.4   -05 24 19     2.370    2.503   86.1   23.1   293   23.6 
2025-12-14 00:00 UT   11 28 46.0   -05 34 55     2.353    2.500   86.9   23.1   293   23.6 
2025-12-15 00:00 UT   11 29 29.7   -05 45 30     2.337    2.498   87.6   23.2   293   23.6 
2025-12-16 00:00 UT   11 30 12.5   -05 56 03     2.320    2.495   88.4   23.2   293   23.6 
2025-12-17 00:00 UT   11 30 54.3   -06 06 35     2.303    2.492   89.2   23.3   293   23.5 
2025-12-18 00:00 UT   11 31 35.1   -06 17 06     2.287    2.489   90.0   23.3   294   23.5 
2025-12-19 00:00 UT   11 32 15.0   -06 27 35     2.270    2.486   90.7   23.3   294   23.5 
2025-12-20 00:00 UT   11 32 53.8   -06 38 03     2.254    2.483   91.5   23.3   294   23.5 
2025-12-21 00:00 UT   11 33 31.7   -06 48 29     2.237    2.480   92.3   23.4   294   23.5 
2025-12-22 00:00 UT   11 34 08.5   -06 58 54     2.220    2.477   93.1   23.4   294   23.5 
2025-12-23 00:00 UT   11 34 44.2   -07 09 16     2.204    2.474   93.9   23.4   294   23.4 
2025-12-24 00:00 UT   11 35 18.8   -07 19 37     2.187    2.471   94.7   23.4   294   23.4 
2025-12-25 00:00 UT   11 35 52.3   -07 29 56     2.171    2.468   95.5   23.4   295   23.4 
2025-12-26 00:00 UT   11 36 24.7   -07 40 13     2.154    2.465   96.4   23.4   295   23.4 
2025-12-27 00:00 UT   11 36 55.9   -07 50 28     2.138    2.462   97.2   23.3   295   23.4 
2025-12-28 00:00 UT   11 37 25.9   -08 00 40     2.121    2.459   98.0   23.3   295   23.3 
2025-12-29 00:00 UT   11 37 54.8   -08 10 50     2.105    2.456   98.8   23.3   295   23.3 
2025-12-30 00:00 UT   11 38 22.4   -08 20 58     2.088    2.453   99.6   23.3   295   23.3 
2025-12-31 00:00 UT   11 38 48.8   -08 31 03     2.072    2.450  100.5   23.2   296   23.3 
2026-01-01 00:00 UT   11 39 13.9   -08 41 06     2.056    2.447  101.3   23.2   296   23.3 
2026-01-02 00:00 UT   11 39 37.8   -08 51 06     2.039    2.443  102.2   23.2   296   23.2 
2026-01-03 00:00 UT   11 40 00.3   -09 01 03     2.023    2.440  103.0   23.1   296   23.2 
2026-01-04 00:00 UT   11 40 21.4   -09 10 58     2.007    2.437  103.8   23.1   296   23.2 
2026-01-05 00:00 UT   11 40 41.3   -09 20 49     1.991    2.434  104.7   23.0   297   23.2 
2026-01-06 00:00 UT   11 40 59.7   -09 30 37     1.975    2.431  105.6   22.9   297   23.1 

    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.