C/2017 K2 (PANSTARRS)
ephemeris date magn radius delta ra dec elong phase
Today17 Feb 201818.714.501 AU14.563 AU18h04m+57°09'84.5°3.9°
Nearest approach14 Jul 20226.82.672 AU1.824 AU16h59m-03°02'138.5°14.6°
Perihelion21 Dec 20225.81.809 AU2.497 AU18h02m-60°18'36.9°19.1°
C/2017 K2 (PANSTARRS) - 2018-02-17
astro.vanbuitenen.nl


 
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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/2017 K2 (PANSTARRS), as provided by the minor planet center, are:

            e (eccentricity)                : 1.000343
            q (perihelion distance)         : 1.808851
            i (inclination)                 : 87.5490
            Ω (Longitude of ascending node) : 88.2236
            ω (Argument of perihelion)      : 236.0415
            L (Longitude of perihelion)     : 91.8571
            B (Latitude of perihelion)      : -55.9637
            T (Time of perihelion passage)  : 2459934.6090
            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 (1.50 + 5 log[∆] + 10.00 log[r]), whereas the red curve is being recalculated every 6 hours based on the available COBS/MPC observations (currently 1.24 + 5 log[∆] + 10.00 log[r]).