(225088) Gonggong
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	30 May 2023	21.5	89.148 AU	89.095 AU	22h30m	-10°43'	92.7°	0.7°
Opposition	28 Aug 2023	21.3	89.202 AU	88.192 AU	22h28m	-10°54'	178.7°	0.0°

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 Gonggong are:

            e (Eccentricity)                : 0.4976969
            a (Semimajor axis)              : 67.3689423
            i (Inclination)                 : 30.61495
            Ω (Longitude of ascending node) : 336.85877
            ω (Argument of perihelion)      : 207.40253
            M (Mean anomaly)                : 108.30335
            Epoch                           : 2022 Aug 09

            L (Longitude of perihelion)     : 0.90260
            B (Latitude of perihelion)      : -13.55532
            P (Orbital period in years)     : 552.95            
        

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. A more printer-friendly version of the same chart can be found below.

Ephemerides:

Date       Time       RA (2000)    DEC (2000)    delta   radius  elong  phase   PA    magn
2023-05-30 00:00 UT   22 30 37.7   -10 43 21    89.095   89.148   92.7    0.7   248   21.5 
2023-05-30 05:00 UT   22 30 37.8   -10 43 21    89.091   89.148   92.9    0.7   248   21.5 
2023-05-31 00:00 UT   22 30 37.8   -10 43 20    89.078   89.149   93.6    0.7   248   21.5 
2023-06-01 00:00 UT   22 30 37.8   -10 43 20    89.062   89.149   94.6    0.6   249   21.5 
2023-06-02 00:00 UT   22 30 37.7   -10 43 19    89.046   89.150   95.5    0.6   249   21.5 
2023-06-03 00:00 UT   22 30 37.7   -10 43 19    89.030   89.151   96.5    0.6   249   21.5 
2023-06-04 00:00 UT   22 30 37.5   -10 43 19    89.013   89.151   97.5    0.6   249   21.5 
2023-06-05 00:00 UT   22 30 37.4   -10 43 19    88.997   89.152   98.4    0.6   249   21.5 
2023-06-06 00:00 UT   22 30 37.1   -10 43 19    88.981   89.152   99.4    0.6   249   21.5 
2023-06-07 00:00 UT   22 30 36.9   -10 43 20    88.965   89.153  100.3    0.6   249   21.5 
2023-06-08 00:00 UT   22 30 36.6   -10 43 21    88.949   89.154  101.3    0.6   249   21.5 
2023-06-09 00:00 UT   22 30 36.3   -10 43 22    88.933   89.154  102.3    0.6   249   21.5 
2023-06-10 00:00 UT   22 30 35.9   -10 43 23    88.917   89.155  103.2    0.6   249   21.5 
2023-06-11 00:00 UT   22 30 35.5   -10 43 25    88.901   89.155  104.2    0.6   249   21.5 
2023-06-12 00:00 UT   22 30 35.0   -10 43 27    88.885   89.156  105.1    0.6   249   21.5 
2023-06-13 00:00 UT   22 30 34.5   -10 43 29    88.870   89.157  106.1    0.6   249   21.5 
2023-06-14 00:00 UT   22 30 34.0   -10 43 31    88.854   89.157  107.0    0.6   249   21.5 
2023-06-15 00:00 UT   22 30 33.4   -10 43 33    88.838   89.158  108.0    0.6   249   21.5 
2023-06-16 00:00 UT   22 30 32.8   -10 43 36    88.823   89.158  109.0    0.6   249   21.5 
2023-06-17 00:00 UT   22 30 32.1   -10 43 39    88.807   89.159  109.9    0.6   249   21.5 
2023-06-18 00:00 UT   22 30 31.4   -10 43 42    88.792   89.160  110.9    0.6   249   21.5 
2023-06-19 00:00 UT   22 30 30.7   -10 43 46    88.777   89.160  111.8    0.6   249   21.5 
2023-06-20 00:00 UT   22 30 29.9   -10 43 50    88.762   89.161  112.8    0.6   249   21.5 
2023-06-21 00:00 UT   22 30 29.1   -10 43 53    88.747   89.161  113.7    0.6   249   21.5 
2023-06-22 00:00 UT   22 30 28.2   -10 43 58    88.732   89.162  114.7    0.6   249   21.5 
2023-06-23 00:00 UT   22 30 27.3   -10 44 02    88.717   89.163  115.7    0.6   249   21.5 
2023-06-24 00:00 UT   22 30 26.4   -10 44 06    88.703   89.163  116.6    0.6   249   21.5 
2023-06-25 00:00 UT   22 30 25.4   -10 44 11    88.688   89.164  117.6    0.6   249   21.5 
2023-06-26 00:00 UT   22 30 24.4   -10 44 16    88.674   89.164  118.5    0.6   249   21.5 
2023-06-27 00:00 UT   22 30 23.3   -10 44 21    88.660   89.165  119.5    0.6   249   21.5 
2023-06-28 00:00 UT   22 30 22.3   -10 44 27    88.646   89.166  120.5    0.6   249   21.5 
2023-06-29 00:00 UT   22 30 21.1   -10 44 32    88.632   89.166  121.4    0.6   249   21.5 

    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.