ephemeris date magn radius delta ra dec elong phase PA
Nearest approach9 Sep 201814.85.790 AU4.788 AU23h02m+00°48'173.5°1.1°163°
Perihelion24 Apr 201915.55.779 AU6.657 AU00h18m+08°54'27.1°4.5°259°
Today30 May 202315.86.104 AU6.913 AU06h56m+26°14'34.4°5.4°91°
29P/Schwassmann-Wachmann- 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 29P/Schwassmann-Wachmann are:

            e (Eccentricity)                : 0.0445900
            q (Perihelion distance)         : 5.7793730
            i (Inclination)                 : 9.36260
            Ω (Longitude of ascending node) : 312.40030
            ω (Argument of perihelion)      : 51.30570
            L (Longitude of perihelion)     : 3.33053
            B (Latitude of perihelion)      : 7.29465
            T (Time of perihelion passage)  : 2458598.40890
            P (Orbital period in years)     : 14.88

            Epoch                           : 2023 May 29
            Reference                       : MPEC 2023-KD6

            Classification(s):              : Ecliptic; Jupiter family
            Tisserand (Jupiter)             : 2.986

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 (4.00 + 5 log[∆] + 10.00 log[r]), whereas the red curve is being recalculated every 6 hours based on the available COBS/MPC observations (currently 3.78 + 5 log[∆] + 10.00 log[r]).