C/2014 UN271 (Bernardinelli-Bernstein)
ephemeris date magn radius delta ra dec elong phase PA
Today22 Apr 202415.716.456 AU16.682 AU03h19m-61°25'75.4°3.4°160°
Perihelion18 Jan 203113.010.956 AU10.805 AU12h09m-38°50'96.3°5.1°303°
Nearest approach5 Apr 203112.810.964 AU10.117 AU11h46m-35°39'146.3°2.9°31°
C/2014 UN271 (Bernardinelli-Bernstein)- 2024-04-22

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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/2014 UN271 (Bernardinelli-Bernstein) are:

            e (Eccentricity)                : 1.0032160
            q (Perihelion distance)         : 10.9562910
            i (Inclination)                 : 95.43660
            Ω (Longitude of ascending node) : 189.91910
            ω (Argument of perihelion)      : 326.12430
            L (Longitude of perihelion)     : 193.55862
            B (Latitude of perihelion)      : -33.70284
            T (Time of perihelion passage)  : 2462884.53250

            Epoch                           : 2024 Apr 21
            Reference                       : MPEC 2024-GJ3

            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 (2.50 + 5 log[∆] + 8.00 log[r]), whereas the red curve is being recalculated every 6 hours based on the available COBS/MPC observations (currently -2.61 + 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.