2016 XG1
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	17 Dec 2025	25.7	2.509 AU	1.639 AU	08h12m	+31°10'	145.0°	13.0°

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 2016 XG1 are:

            e (Eccentricity)                : 0.7683540
            a (Semimajor axis)              : 1.4195157
            i (Inclination)                 : 10.28139
            Ω (Longitude of ascending node) : 62.32002
            ω (Argument of perihelion)      : 224.87208
            M (Mean anomaly)                : 160.27716
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 106.72841
            B (Latitude of perihelion)      : -7.23413
            P (Orbital period in years)     : 1.69            
        

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
2025-12-17 00:00 UT   08 12 12.0   +31 10 30     1.639    2.509  145.0   13.0   267   25.7 
2025-12-17 06:30 UT   08 11 48.3   +31 12 57     1.636    2.509  145.4   12.9   266   25.7 
2025-12-18 00:00 UT   08 10 43.6   +31 19 34     1.631    2.509  146.3   12.6   266   25.6 
2025-12-19 00:00 UT   08 09 12.3   +31 28 39     1.623    2.510  147.5   12.1   265   25.6 
2025-12-20 00:00 UT   08 07 38.5   +31 37 42     1.616    2.510  148.8   11.7   263   25.6 
2025-12-21 00:00 UT   08 06 01.9   +31 46 44     1.609    2.510  150.1   11.3   262   25.6 
2025-12-22 00:00 UT   08 04 22.8   +31 55 43     1.602    2.510  151.3   10.8   261   25.5 
2025-12-23 00:00 UT   08 02 41.2   +32 04 39     1.596    2.510  152.6   10.4   259   25.5 
2025-12-24 00:00 UT   08 00 57.1   +32 13 30     1.590    2.510  153.8   10.0   257   25.5 
2025-12-25 00:00 UT   07 59 10.7   +32 22 16     1.584    2.510  155.1    9.5   256   25.5 
2025-12-26 00:00 UT   07 57 21.9   +32 30 56     1.578    2.510  156.3    9.1   254   25.4 
2025-12-27 00:00 UT   07 55 30.8   +32 39 30     1.573    2.510  157.5    8.6   251   25.4 
2025-12-28 00:00 UT   07 53 37.7   +32 47 56     1.568    2.510  158.7    8.2   249   25.4 
2025-12-29 00:00 UT   07 51 42.5   +32 56 13     1.564    2.510  159.8    7.8   246   25.4 
2025-12-30 00:00 UT   07 49 45.4   +33 04 21     1.560    2.510  160.9    7.4   244   25.3 
2025-12-31 00:00 UT   07 47 46.4   +33 12 19     1.556    2.510  162.0    6.9   240   25.3 
2026-01-01 00:00 UT   07 45 45.7   +33 20 07     1.552    2.509  163.0    6.6   237   25.3 
2026-01-02 00:00 UT   07 43 43.4   +33 27 42     1.549    2.509  164.0    6.2   232   25.3 
2026-01-03 00:00 UT   07 41 39.6   +33 35 06     1.546    2.509  164.9    5.9   228   25.2 
2026-01-04 00:00 UT   07 39 34.4   +33 42 16     1.544    2.508  165.7    5.6   223   25.2 
2026-01-05 00:00 UT   07 37 28.0   +33 49 13     1.542    2.508  166.4    5.3   217   25.2 
2026-01-06 00:00 UT   07 35 20.4   +33 55 56     1.540    2.508  167.0    5.1   211   25.2 

    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.