2021 QF5
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	4 Dec 2025	29.2	2.650 AU	2.950 AU	12h30m	-04°31'	62.8°	19.3°

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 2021 QF5 are:

            e (Eccentricity)                : 0.5459897
            a (Semimajor axis)              : 2.2474119
            i (Inclination)                 : 1.21881
            Ω (Longitude of ascending node) : 256.67743
            ω (Argument of perihelion)      : 135.04830
            M (Mean anomaly)                : 75.78266
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 211.73221
            B (Latitude of perihelion)      : 0.86107
            P (Orbital period in years)     : 3.37            
        

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
2025-12-04 00:00 UT   12 30 55.8   -04 31 37     2.950    2.650   62.8   19.3   293   29.2 
2025-12-04 09:58 UT   12 31 20.3   -04 34 22     2.947    2.652   63.2   19.4   293   29.2 
2025-12-05 00:00 UT   12 31 54.6   -04 38 13     2.942    2.655   63.6   19.4   293   29.2 
2025-12-06 00:00 UT   12 32 52.5   -04 44 43     2.934    2.660   64.3   19.5   293   29.2 
2025-12-07 00:00 UT   12 33 49.7   -04 51 09     2.925    2.665   65.1   19.6   293   29.2 
2025-12-08 00:00 UT   12 34 46.1   -04 57 30     2.917    2.670   65.8   19.7   293   29.2 
2025-12-09 00:00 UT   12 35 41.7   -05 03 45     2.908    2.675   66.6   19.8   293   29.2 
2025-12-10 00:00 UT   12 36 36.4   -05 09 55     2.899    2.680   67.4   19.8   293   29.2 
2025-12-11 00:00 UT   12 37 30.4   -05 15 60     2.891    2.684   68.1   19.9   293   29.2 
2025-12-12 00:00 UT   12 38 23.5   -05 21 59     2.882    2.689   68.9   20.0   293   29.2 
2025-12-13 00:00 UT   12 39 15.7   -05 27 53     2.873    2.694   69.7   20.0   293   29.2 
2025-12-14 00:00 UT   12 40 07.1   -05 33 41     2.863    2.699   70.5   20.1   293   29.2 
2025-12-15 00:00 UT   12 40 57.7   -05 39 24     2.854    2.704   71.3   20.2   293   29.2 
2025-12-16 00:00 UT   12 41 47.3   -05 45 00     2.845    2.709   72.1   20.2   293   29.2 
2025-12-17 00:00 UT   12 42 36.0   -05 50 31     2.835    2.714   72.9   20.3   293   29.2 
2025-12-18 00:00 UT   12 43 23.9   -05 55 56     2.826    2.718   73.7   20.3   293   29.2 
2025-12-19 00:00 UT   12 44 10.7   -06 01 16     2.816    2.723   74.5   20.4   293   29.2 
2025-12-20 00:00 UT   12 44 56.7   -06 06 29     2.807    2.728   75.3   20.4   293   29.2 
2025-12-21 00:00 UT   12 45 41.7   -06 11 36     2.797    2.733   76.1   20.5   293   29.2 
2025-12-22 00:00 UT   12 46 25.7   -06 16 36     2.787    2.737   76.9   20.5   293   29.1 
2025-12-23 00:00 UT   12 47 08.7   -06 21 31     2.777    2.742   77.7   20.5   293   29.1 
2025-12-24 00:00 UT   12 47 50.7   -06 26 19     2.767    2.747   78.6   20.5   293   29.1 
2025-12-25 00:00 UT   12 48 31.7   -06 31 01     2.757    2.751   79.4   20.6   293   29.1 
2025-12-26 00:00 UT   12 49 11.7   -06 35 36     2.747    2.756   80.2   20.6   293   29.1 
2025-12-27 00:00 UT   12 49 50.7   -06 40 05     2.737    2.761   81.1   20.6   293   29.1 
2025-12-28 00:00 UT   12 50 28.6   -06 44 27     2.727    2.765   81.9   20.6   293   29.1 
2025-12-29 00:00 UT   12 51 05.4   -06 48 43     2.716    2.770   82.8   20.6   293   29.1 
2025-12-30 00:00 UT   12 51 41.2   -06 52 51     2.706    2.775   83.6   20.6   293   29.1 
2025-12-31 00:00 UT   12 52 15.8   -06 56 53     2.696    2.779   84.5   20.6   293   29.1 
2026-01-01 00:00 UT   12 52 49.4   -07 00 48     2.685    2.784   85.3   20.6   293   29.1 
2026-01-02 00:00 UT   12 53 21.8   -07 04 37     2.675    2.788   86.2   20.6   293   29.1 
2026-01-03 00:00 UT   12 53 53.2   -07 08 18     2.664    2.793   87.1   20.6   293   29.1 

    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.