A/2020 A1
ephemeris date magn radius delta ra dec elong phase PA
Perihelion6 Dec 201921.11.691 AU2.046 AU12h44m-26°58'55.3°28.6°280°
Today21 Jan 202019.61.797 AU1.007 AU10h32m-17°37'129.0°25.2°316°
Nearest approach2 Feb 202019.01.856 AU0.910 AU09h08m-06°16'156.8°12.1°356°
A/2020 A1- 2020-01-21

-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 A/2020 A1, as provided by the minor planet center, are:

            e (eccentricity)                : 1.0000000
            q (perihelion distance)         : 1.6906536
            i (inclination)                 : 149.29935
            Ω (Longitude of ascending node) : 119.01275
            ω (Argument of perihelion)      : 304.45214
            L (Longitude of perihelion)     : 170.42719
            B (Latitude of perihelion)      : -24.89782
            T (Time of perihelion passage)  : 2458823.90086
            P (Orbital period in years)     : > 9999.99 
            Epoch                           : 2019 Nov 13

            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. Two light curves are shown: The gray curve indicates the expected brightness if this object is a comet (17.30 + 5 log[∆] + 10.00 log[r]), whereas the red curve indicates the expected lightcurve for an asteroid (H=17.10; G=.15).

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.