C/2022 L2 (ATLAS)
ephemeris date magn radius delta ra dec elong phase PA
Perihelion11 Mar 202413.72.694 AU2.001 AU 14h16m-35°43'124.7°17.6°306°
Nearest approach5 Apr 202413.52.706 AU1.814 AU 12h32m-38°59'146.6°11.7°11°
Today14 Apr 202621.17.423 AU7.904 AU 05h03m-13°29'58.0°6.6°110°
C/2022 L2 (ATLAS)- 2026-04-14
astro.vanbuitenen.nl


 
-1 month
-1 week
-1 day
Now
+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.)


Light curve

The light curve chart below shows the estimated development of the comet's magnitude. Blue and black dots are visual and photometric CCD observations from COBS. This lightcurve is being recalculated every 6 hours based on the available COBS/MPC observations (currently 7.9 + 5 log[∆] + 10.0 log[r]). An additional green curve is displayed when an increase in apparent brightness is expected due to forward scattering of sunlight, which occurs when a dust-rich comet is located between the Earth and the Sun. (See Marcus 2007)



Charts

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.




Orbital elements

The orbital elements of C/2022 L2 (ATLAS) are:

    e (Eccentricity)                : 1.0003220
    q (Perihelion distance)         : 2.6942720
    i (Inclination)                 : 129.30950
    Ω (Longitude of ascending node) : 39.25340
    ω (Argument of perihelion)      : 199.92560
    L (Longitude of perihelion)     : 26.31983
    B (Latitude of perihelion)      : -15.28905
    T (Time of perihelion passage)  : 2460381.44920

    Epoch                           : 2026 Apr 13
    Reference                       : MPEC 2026-E44

    Classification(s):              : Nearly isotropic; New (a > 10000 AU)

Ephemerides

Date       Time       RA (2000)    DEC (2000)    delta   radius  elong  phase   PA    magn
2026-04-13 00:00 UT   05 03 31.3   -13 35 21     7.882    7.414   58.9    6.6   109   21.1 
2026-04-14 00:00 UT   05 03 42.4   -13 30 14     7.900    7.421   58.2    6.6   110   21.1 
2026-04-14 05:21 UT   05 03 44.9   -13 29 06     7.904    7.423   58.0    6.6   110   21.1 
2026-04-15 00:00 UT   05 03 53.8   -13 25 10     7.919    7.428   57.5    6.5   111   21.1 
2026-04-16 00:00 UT   05 04 05.5   -13 20 10     7.937    7.436   56.8    6.5   111   21.1 
2026-04-17 00:00 UT   05 04 17.6   -13 15 14     7.955    7.443   56.1    6.4   112   21.1 
2026-04-18 00:00 UT   05 04 30.1   -13 10 22     7.973    7.450   55.5    6.4   113   21.1 
2026-04-19 00:00 UT   05 04 42.8   -13 05 33     7.990    7.457   54.8    6.3   114   21.2 
2026-04-20 00:00 UT   05 04 55.9   -13 00 48     8.008    7.464   54.1    6.3   115   21.2 
2026-04-21 00:00 UT   05 05 09.3   -12 56 07     8.025    7.471   53.5    6.2   115   21.2 
2026-04-22 00:00 UT   05 05 23.1   -12 51 29     8.042    7.478   52.8    6.1   116   21.2 
2026-04-23 00:00 UT   05 05 37.1   -12 46 55     8.059    7.485   52.2    6.1   117   21.2 
2026-04-24 00:00 UT   05 05 51.4   -12 42 26     8.076    7.493   51.5    6.0   118   21.2 



    Terminology:
            
    delta:  distance between comet and earth in AU
    radius: distance between comet and sun in AU
    magn:   magnitude (brightness) estimate    
    ra:     right ascension in hours (24h = 360deg)
    dec:    declination in degrees
    elong:  elongation in degrees (angle sun-earth-comet)    
    phase:  phase angle in degrees (angle sun-comet-earth)        
    AU:     Astronomical Unit (mean distance between earth and sun: 149597870.7 km      
    

Orbital elements usually provided by the MPC (Minor Planet Center).
Observations contributed by observers worldwide, via COBS (Comet Observation Database) or the MPC (Minor Planet Center)
Calculations by a modified version of AAPlus, a C# implementation of the AA+ project by PJ Naughter from the algorithms presented in the book "Astronomical Algorithms" by Jean Meeus.
NGC2000 dso catalog and star labels from VizieR as provided by the Strasbourg astronomical Data Center.
Tycho2 catalog from the ESO archive.