P/2018 P4 (PANSTARRS)
ephemeris date magn radius delta ra dec elong phase PA
Nearest approach16 Sep 201819.83.680 AU2.674 AU23h32m-03°24'179.3°0.2°30°
Perihelion7 Nov 201820.13.666 AU3.030 AU23h07m-01°27'123.1°13.1°70°
Today15 Nov 201820.13.667 AU3.144 AU23h07m-00°52'114.5°14.2°69°
P/2018 P4 (PANSTARRS) - 2018-11-15
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 P/2018 P4 (PANSTARRS), as provided by the minor planet center, are:

            e (eccentricity)                : 0.4493740
            q (perihelion distance)         : 3.66615
            i (inclination)                 : 23.11190
            Ω (Longitude of ascending node) : 353.11020
            ω (Argument of perihelion)      : 8.11130
            L (Longitude of perihelion)     : 0.57815
            B (Latitude of perihelion)      : 3.17491
            T (Time of perihelion passage)  : 2458429.81940
            P (Orbital period in years)     : 17.18

            Family/Group:                   : Jupiter family
        

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 (12.00 + 5 log[∆] + 10.00 log[r]), whereas the red curve is being recalculated every 6 hours based on the available COBS/MPC observations (currently 12.03 + 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.





The following chart show the short-term path of the comet in a field of view that is optimized for (~10x50) binoculars and finderscopes.
A more printer-friendly versions of the same chart can be found further down this page as well.


The following chart show the current location of the comet in a smaller, upside-down telescopic field of view.


A printable version of the short-term path of the comet in a field of view that is optimized for (~10x50) binoculars and finderscopes.