C/2020 Y2 (ATLAS)
ephemeris date magn radius delta ra dec elong phase PA
Today11 Apr 202116.65.066 AU4.083 AU13h15m-20°49'167.5°2.5°
Nearest approach19 Mar 202213.93.251 AU2.920 AU07h51m-66°59'100.4°17.5°63°
Perihelion17 Jun 202214.13.132 AU3.420 AU06h35m-40°40'65.2°17.1°167°
C/2020 Y2 (ATLAS)- 2021-04-11

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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/2020 Y2 (ATLAS), as provided by the minor planet center, are:

            e (eccentricity)                : 0.9974400
            q (perihelion distance)         : 3.1324020
            i (inclination)                 : 101.28570
            Ω (Longitude of ascending node) : 26.50640
            ω (Argument of perihelion)      : 266.09890
            L (Longitude of perihelion)     : -44.28263
            B (Latitude of perihelion)      : -78.06735
            T (Time of perihelion passage)  : 2459748.16100

            Epoch                           : 2021 Apr 10
            Reference                       : MPEC 2021-FB5

            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. (6.50 + 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.