C/2020 J1 (SONEAR)
ephemeris date magn radius delta ra dec elong phase PA
Today20 Jan 202115.03.456 AU4.195 AU17h48m-41°26'36.6°9.8°245°
Perihelion18 Apr 202113.83.355 AU2.590 AU16h40m-36°42'132.9°12.7°292°
Nearest approach16 May 202113.63.366 AU2.366 AU15h24m-29°17'169.7°3.1°13°
C/2020 J1 (SONEAR)- 2021-01-20

-1 month
-1 week
-1 day
+1 day
+1 week
+1 month

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)                : 1.0004470
            q (perihelion distance)         : 3.3553210
            i (inclination)                 : 142.29570
            Ω (Longitude of ascending node) : 226.57830
            ω (Argument of perihelion)      : 341.72800
            L (Longitude of perihelion)     : 241.21841
            B (Latitude of perihelion)      : -11.05491
            T (Time of perihelion passage)  : 2459322.99130
            P (Orbital period in years)     : > 9999.99 
            Epoch                           : 2020 Dec 03
            Reference                       : MPEC 2020-W26

            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 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[∆] + 8.00 log[r]), whereas the red curve is being recalculated every 6 hours based on the available COBS/MPC observations (currently 6.47 + 5 log[∆] + 10.00 log[r]).