C/2018 N1 (NEOWISE)
ephemeris date magn radius delta ra dec elong phase PA
Nearest approach27 Jul 20188.91.312 AU0.308 AU20h23m-36°49'162.4°13.5°
Perihelion2 Aug 20189.51.309 AU0.392 AU17h24m-29°23'131.7°35.4°88°
Today31 Jan 202327.414.081 AU13.184 AU10h40m+23°37'154.7°1.7°260°
C/2018 N1 (NEOWISE)- 2023-01-31

-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/2018 N1 (NEOWISE) are:

            e (Eccentricity)                : 0.9974370
            q (Perihelion distance)         : 1.3089470
            i (Inclination)                 : 159.40970
            Ω (Longitude of ascending node) : 292.54070
            ω (Argument of perihelion)      : 354.73440
            L (Longitude of perihelion)     : 297.47164
            B (Latitude of perihelion)      : -1.84954
            T (Time of perihelion passage)  : 2458333.39970

            Epoch                           : 2023 Jan 31
            Reference                       : MPEC 2022-M21

            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 (15.50 + 5 log[∆] + 10.00 log[r]), whereas the red curve is being recalculated every 6 hours based on the available COBS/MPC observations (currently 10.32 + 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.