C/2021 E3 (ZTF)
ephemeris date magn radius delta ra dec elong phase PA
Nearest approach31 May 20229.71.783 AU1.217 AU00h41m-78°52'105.7°33.2°235°
Perihelion11 Jun 20229.81.777 AU1.263 AU06h27m-78°24'102.0°34.0°164°
Today14 Feb 202524.29.394 AU8.665 AU06h48m+20°12'135.4°4.2°92°
C/2021 E3 (ZTF)- 2025-02-14
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 C/2021 E3 (ZTF) are:

            e (Eccentricity)                : 1.0000810
            q (Perihelion distance)         : 1.7772700
            i (Inclination)                 : 112.52410
            Ω (Longitude of ascending node) : 104.48400
            ω (Argument of perihelion)      : 228.81110
            L (Longitude of perihelion)     : 80.84257
            B (Latitude of perihelion)      : -44.03817
            T (Time of perihelion passage)  : 2459741.91060

            Epoch                           : 2025 Feb 07
            Reference                       : MPEC 2024-GJ3

            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 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 (8.50 + 5 log[∆] + 10.00 log[r]), whereas the red curve is being recalculated every 6 hours based on the available COBS/MPC observations (currently 5.70 + 5 log[∆] + 14.24 log[r]).