2021 QF5
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	16 Oct 2026	29.9	3.469 AU	4.461 AU	13h40m	-11°13'	5.2°	1.5°

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 2021 QF5 are:

            e (Eccentricity)                : 0.5459542
            a (Semimajor axis)              : 2.2471373
            i (Inclination)                 : 1.21880
            Ω (Longitude of ascending node) : 256.67333
            ω (Argument of perihelion)      : 135.04090
            M (Mean anomaly)                : 134.34134
            Epoch                           : 2026 Jun 09

            L (Longitude of perihelion)     : 211.72071
            B (Latitude of perihelion)      : 0.86117
            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
2026-10-16 00:00 UT   13 40 55.1   -11 13 18     4.461    3.469    5.2    1.5   119   29.9 
2026-10-16 03:44 UT   13 41 05.9   -11 14 18     4.461    3.469    5.1    1.5   119   29.9 
2026-10-17 00:00 UT   13 42 04.0   -11 19 43     4.462    3.469    4.5    1.3   120   29.9 
2026-10-18 00:00 UT   13 43 13.0   -11 26 08     4.463    3.470    3.9    1.1   121   29.8 
2026-10-19 00:00 UT   13 44 22.0   -11 32 32     4.464    3.470    3.2    0.9   124   29.8 
2026-10-20 00:00 UT   13 45 31.1   -11 38 55     4.465    3.470    2.5    0.7   127   29.8 
2026-10-21 00:00 UT   13 46 40.3   -11 45 17     4.466    3.471    1.9    0.5   133   29.8 
2026-10-22 00:00 UT   13 47 49.5   -11 51 39     4.466    3.471    1.2    0.4   145   29.8 
2026-10-23 00:00 UT   13 48 58.8   -11 57 59     4.466    3.471    0.8    0.2   175   29.7 
2026-10-24 00:00 UT   13 50 08.1   -12 04 19     4.466    3.472    0.8    0.2   228   29.7 
2026-10-25 00:00 UT   13 51 17.4   -12 10 37     4.466    3.472    1.3    0.4   257   29.8 
2026-10-26 00:00 UT   13 52 26.8   -12 16 55     4.466    3.472    1.9    0.5   269   29.8 
2026-10-27 00:00 UT   13 53 36.3   -12 23 12     4.465    3.472    2.5    0.7   275   29.8 
2026-10-28 00:00 UT   13 54 45.8   -12 29 27     4.464    3.472    3.2    0.9   278   29.8 
2026-10-29 00:00 UT   13 55 55.3   -12 35 42     4.463    3.473    3.9    1.1   280   29.8 
2026-10-30 00:00 UT   13 57 04.8   -12 41 56     4.462    3.473    4.6    1.3   282   29.9 
2026-10-31 00:00 UT   13 58 14.4   -12 48 08     4.461    3.473    5.3    1.5   283   29.9 
2026-11-01 00:00 UT   13 59 24.0   -12 54 20     4.459    3.473    6.0    1.7   284   29.9 
2026-11-02 00:00 UT   14 00 33.6   -13 00 30     4.457    3.473    6.7    1.9   284   29.9 
2026-11-03 00:00 UT   14 01 43.3   -13 06 39     4.455    3.473    7.4    2.1   285   29.9 
2026-11-04 00:00 UT   14 02 53.0   -13 12 46     4.453    3.474    8.1    2.3   285   29.9 
2026-11-05 00:00 UT   14 04 02.6   -13 18 53     4.450    3.474    8.8    2.5   285   29.9 
2026-11-06 00:00 UT   14 05 12.3   -13 24 58     4.448    3.474    9.5    2.7   286   30.0 
2026-11-07 00:00 UT   14 06 22.0   -13 31 02     4.445    3.474   10.2    2.9   286   30.0 
2026-11-08 00:00 UT   14 07 31.6   -13 37 04     4.442    3.474   10.9    3.1   286   30.0 
2026-11-09 00:00 UT   14 08 41.3   -13 43 05     4.439    3.474   11.6    3.3   286   30.0 
2026-11-10 00:00 UT   14 09 50.9   -13 49 05     4.435    3.474   12.3    3.5   286   30.0 
2026-11-11 00:00 UT   14 11 00.5   -13 55 03     4.432    3.474   13.0    3.7   287   30.0 
2026-11-12 00:00 UT   14 12 10.1   -14 00 59     4.428    3.474   13.7    3.9   287   30.0 
2026-11-13 00:00 UT   14 13 19.7   -14 06 54     4.424    3.474   14.4    4.1   287   30.0 

    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.