C/2022 S4 (Lemmon)
ephemeris date magn radius delta ra dec elong phase PA
Today28 Nov 202219.66.213 AU5.341 AU02h06m+22°27'149.8°4.6°86°
Perihelion18 Jul 202414.62.767 AU2.773 AU06h05m-54°48'79.1°21.1°205°
Nearest approach27 Jul 202414.62.769 AU2.759 AU06h46m-57°59'79.9°21.2°205°
C/2022 S4 (Lemmon)- 2022-11-28
astro.vanbuitenen.nl


 
-1 month
-1 week
-1 day
Now
+1 day
+1 week
+1 month

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/2022 S4 (Lemmon) are:

            e (Eccentricity)                : 1.0007840
            q (Perihelion distance)         : 2.7668970
            i (Inclination)                 : 101.03620
            Ω (Longitude of ascending node) : 220.15480
            ω (Argument of perihelion)      : 268.33910
            L (Longitude of perihelion)     : 138.76807
            B (Latitude of perihelion)      : -78.84105
            T (Time of perihelion passage)  : 2460509.52090

            Epoch                           : 2022 Nov 28
            Reference                       : MPEC 2022-WD2

            Classification(s):              : Nearly isotropic; New (a > 10000 AU)
        

The light curve 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 light curve is based on the absolute magnitude and slope parameter as calculated from the original MPEC, or the latest values provided by the minor planet center. (8.00 + 5 log[∆] + 10.00 log[r]).


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





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