ephemeris date magn radius delta ra dec elong phase PA
Perihelion16 Dec 202011.00.807 AU0.760 AU21h12m-09°16'53.3°77.7°68°
Nearest approach19 Jan 202111.60.975 AU0.537 AU01h03m-05°45'73.2°75.0°71°
Today30 May 202328.05.282 AU4.503 AU13h20m-17°14'136.3°7.6°104°
141P/Machholz- 2023-05-30

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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 141P/Machholz are:

            e (Eccentricity)                : 0.7360500
            q (Perihelion distance)         : 0.8070540
            i (Inclination)                 : 13.95490
            Ω (Longitude of ascending node) : 241.79360
            ω (Argument of perihelion)      : 153.60160
            L (Longitude of perihelion)     : 216.07257
            B (Latitude of perihelion)      : 6.15516
            T (Time of perihelion passage)  : 2459200.05560
            P (Orbital period in years)     : 5.35

            Epoch                           : 2023 Jan 31
            Reference                       : MPEC 2022-K19

            Classification(s):              : Ecliptic; Jupiter family
            Tisserand (Jupiter)             : 2.709

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 gray curve is based on the absolute magnitude and slope parameter as calculated from the original MPEC, or the latest values provided by the MPC (12.00 + 5 log[∆] + 30.00 log[r]), whereas the red curve is being recalculated every 6 hours based on the available COBS/MPC observations (currently 13.12 + 5 log[∆] + 16.13 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.