2021 GQ
ephemeris date magn radius delta ra dec elong phase
Today28 Dec 202529.31.943 AU1.416 AU01h17m+13°32'106.8°29.0°
2021 GQ - 2025-12-28
astro.vanbuitenen.nl


 
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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 GQ are:

            e (Eccentricity)                : 0.3329294
            a (Semimajor axis)              : 1.4856025
            i (Inclination)                 : 5.69904
            Ω (Longitude of ascending node) : 12.82568
            ω (Argument of perihelion)      : 203.47484
            M (Mean anomaly)                : 189.36297
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 36.19696
            B (Latitude of perihelion)      : -2.26704
            P (Orbital period in years)     : 1.81            
        

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
2025-12-28 00:00 UT   01 17 29.7   +13 32 00     1.416    1.943  106.8   29.0    69   29.3 
2025-12-28 10:01 UT   01 17 42.4   +13 33 01     1.420    1.943  106.4   29.1    69   29.3 
2025-12-29 00:00 UT   01 18 00.7   +13 34 29     1.427    1.942  105.9   29.1    69   29.3 
2025-12-30 00:00 UT   01 18 33.6   +13 37 08     1.437    1.941  105.0   29.3    69   29.3 
2025-12-31 00:00 UT   01 19 08.4   +13 39 57     1.448    1.939  104.2   29.5    69   29.3 
2026-01-01 00:00 UT   01 19 45.0   +13 42 57     1.459    1.938  103.3   29.6    69   29.4 
2026-01-02 00:00 UT   01 20 23.4   +13 46 06     1.469    1.936  102.5   29.7    69   29.4 
2026-01-03 00:00 UT   01 21 03.6   +13 49 25     1.480    1.935  101.6   29.9    69   29.4 
2026-01-04 00:00 UT   01 21 45.5   +13 52 54     1.491    1.933  100.8   30.0    69   29.4 
2026-01-05 00:00 UT   01 22 29.2   +13 56 32     1.501    1.932   99.9   30.1    69   29.4 
2026-01-06 00:00 UT   01 23 14.5   +14 00 19     1.512    1.930   99.1   30.2    69   29.4 
2026-01-07 00:00 UT   01 24 01.5   +14 04 15     1.523    1.928   98.3   30.3    69   29.5 
2026-01-08 00:00 UT   01 24 50.0   +14 08 20     1.534    1.927   97.5   30.4    69   29.5 
2026-01-09 00:00 UT   01 25 40.2   +14 12 33     1.544    1.925   96.7   30.5    69   29.5 
2026-01-10 00:00 UT   01 26 32.0   +14 16 55     1.555    1.923   95.9   30.6    69   29.5 
2026-01-11 00:00 UT   01 27 25.3   +14 21 25     1.566    1.922   95.1   30.6    69   29.5 
2026-01-12 00:00 UT   01 28 20.2   +14 26 04     1.576    1.920   94.3   30.7    69   29.5 
2026-01-13 00:00 UT   01 29 16.5   +14 30 50     1.587    1.918   93.6   30.8    69   29.5 
2026-01-14 00:00 UT   01 30 14.3   +14 35 44     1.598    1.917   92.8   30.8    69   29.6 
2026-01-15 00:00 UT   01 31 13.6   +14 40 46     1.608    1.915   92.0   30.9    69   29.6 
2026-01-16 00:00 UT   01 32 14.4   +14 45 55     1.619    1.913   91.3   30.9    69   29.6 
2026-01-17 00:00 UT   01 33 16.5   +14 51 11     1.629    1.911   90.5   31.0    69   29.6 
2026-01-18 00:00 UT   01 34 20.1   +14 56 35     1.640    1.909   89.8   31.0    69   29.6 
2026-01-19 00:00 UT   01 35 25.0   +15 02 05     1.650    1.907   89.0   31.1    69   29.6 
2026-01-20 00:00 UT   01 36 31.2   +15 07 42     1.661    1.905   88.3   31.1    69   29.6 
2026-01-21 00:00 UT   01 37 38.8   +15 13 26     1.671    1.903   87.6   31.1    68   29.7 
2026-01-22 00:00 UT   01 38 47.8   +15 19 16     1.682    1.901   86.9   31.1    68   29.7 
2026-01-23 00:00 UT   01 39 58.0   +15 25 13     1.692    1.899   86.1   31.1    68   29.7 
2026-01-24 00:00 UT   01 41 09.4   +15 31 15     1.702    1.897   85.4   31.1    68   29.7 
2026-01-25 00:00 UT   01 42 22.2   +15 37 23     1.713    1.895   84.7   31.1    68   29.7 
2026-01-26 00:00 UT   01 43 36.1   +15 43 37     1.723    1.893   84.0   31.1    68   29.7 
2026-01-27 00:00 UT   01 44 51.3   +15 49 56     1.733    1.891   83.3   31.1    68   29.7 


    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.