ephemeris date magn radius delta ra dec elong phase PA
Perihelion25 Apr 201512.45.819 AU6.401 AU22h59m-05°11'50.9°7.7°248°
Nearest approach8 Sep 201511.95.855 AU4.849 AU23h16m-04°09'177.1°0.5°237°
Today18 Oct 202121.010.951 AU10.660 AU06h46m+18°38'104.4°5.1°276°
174P/Echeclus- 2021-10-18

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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 174P/Echeclus are:

            e (eccentricity)                : 0.4574440
            q (perihelion distance)         : 5.8185490
            i (inclination)                 : 4.34350
            Ω (Longitude of ascending node) : 173.20780
            ω (Argument of perihelion)      : 163.15930
            L (Longitude of perihelion)     : 156.41274
            B (Latitude of perihelion)      : 1.25726
            T (Time of perihelion passage)  : 2457138.22340
            P (Orbital period in years)     : 35.12

            Epoch                           : 2021 Oct 18
            Reference                       : MPC 92985

            Classification(s):              : Ecliptic; Chiron type
            Tisserand (Jupiter)             : 3.031

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 (9.40 + 5 log[∆] + 5.00 log[r]), whereas the red curve is being recalculated every 6 hours based on the available COBS/MPC observations (currently -12.47 + 5 log[∆] + 27.26 log[r]).