C/2016 U1 (NEOWISE)
ephemeris date magn radius delta ra dec elong phase
Nearest approach12 Dec 201610.40.919 AU0.710 AU15h22m+34°02'63.2°73.1°
Perihelion14 Jan 20176.70.319 AU1.154 AU18h40m-19°38'14.6°50.7°
Today17 Feb 201823.25.664 AU6.165 AU01h50m-18°41'55.5°8.3°
C/2016 U1 (NEOWISE) - 2018-02-17

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The interactive orbit chart above shows the comet'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 C/2016 U1 (NEOWISE), as provided by the minor planet center, are:

            e (eccentricity)                : 1.000309
            q (perihelion distance)         : 0.319376
            i (inclination)                 : 46.4424
            Ω (Longitude of ascending node) : 61.4152
            ω (Argument of perihelion)      : 162.7732
            L (Longitude of perihelion)     : 49.3547
            B (Latitude of perihelion)      : 12.3931
            T (Time of perihelion passage)  : 2457767.5245
            P (Orbital period in years)     : > 9999.99 

            Family/Group:                   : Nearly isotropic

The lightcurve chart below shows the estimated development of the comet's magnitude. Blue and black dots are visual and photometric CCD observations respectively from COBS or the MPC Two lightcurves are shown: The gray curve is based on the absolute magnitide and slope parameter as provided by the minor planet center (17.00 + 5 log[∆] + 10.00 log[r]), whereas the red curve is being recalculated every 6 hours based on the available COBS/MPC observations (currently 11.48 + 5 log[∆] + 10.33 log[r]).

The all-sky chart below shows the path of of the comet over the same period as the lightcurve. The comet's current position is marked yellow.