C/2020 J1 (SONEAR)
ephemeris date magn radius delta ra dec elong phase PA
Today31 May 202016.64.394 AU3.974 AU22h34m-54°14'108.0°12.7°257°
Perihelion15 Apr 202114.33.256 AU2.511 AU16h42m-34°39'130.8°13.5°289°
Nearest approach15 May 202114.13.268 AU2.264 AU15h22m-26°22'172.3°2.4°
C/2020 J1 (SONEAR)- 2020-05-31
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/2020 J1 (SONEAR), as provided by the minor planet center, are:

            e (eccentricity)                : 1.0000000
            q (perihelion distance)         : 3.2564643
            i (inclination)                 : 142.16901
            Ω (Longitude of ascending node) : 227.85659
            ω (Argument of perihelion)      : 344.44934
            L (Longitude of perihelion)     : 240.25251
            B (Latitude of perihelion)      : -9.46406
            T (Time of perihelion passage)  : 2459320.23083
            P (Orbital period in years)     : > 9999.99 
            Epoch                           : 2020 May 05

            Family/Group:                   : Nearly isotropic
        

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. (7.19 + 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.