C/2011 L4 (PANSTARRS)
ephemeris date magn radius delta ra dec elong phase
Nearest approach5 Mar 20130.90.330 AU1.095 AU23h58m-16°46'17.3°63.3°
Perihelion9 Mar 20130.50.302 AU1.104 AU00h18m-06°19'15.4°60.9°
Today17 Feb 201823.616.012 AU16.074 AU16h42m+19°52'84.6°3.5°
C/2011 L4 (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/2011 L4 (PANSTARRS), as provided by the minor planet center, are:

            e (eccentricity)                : 0.999938
            q (perihelion distance)         : 0.301299
            i (inclination)                 : 83.8710
            Ω (Longitude of ascending node) : 66.0152
            ω (Argument of perihelion)      : 333.6072
            L (Longitude of perihelion)     : 62.9823
            B (Latitude of perihelion)      : -26.2304
            T (Time of perihelion passage)  : 2456360.8559
            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 The lightcurve is based on the absolute magnitide and slope parameter as provided the minor planet center (5.50 + 5 log[∆] + 10.00 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.