A/2024 U2
ephemeris date magn radius delta ra dec elong phase PA
Nearest approach4 Nov 202520.98.191 AU7.279 AU 02h02m+38°49'155.3°2.9°160°
Perihelion15 Jan 202621.38.179 AU8.013 AU 01h16m+36°15'96.3°6.9°68°
Today11 Jul 202621.48.248 AU8.514 AU 01h37m+45°26'71.5°6.7°257°
A/2024 U2- 2026-07-11
astro.vanbuitenen.nl


 
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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.)


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. The displayed light curve is calculated under the assumption that the object remains inactive. (H=11.70; G=.15).



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 A/2024 U2 are:

    e (Eccentricity)                : 1.0034730
    q (Perihelion distance)         : 8.1790320
    i (Inclination)                 : 120.67520
    Ω (Longitude of ascending node) : 56.07830
    ω (Argument of perihelion)      : 29.85210
    L (Longitude of perihelion)     : 39.75859
    B (Latitude of perihelion)      : 25.34783
    T (Time of perihelion passage)  : 2461056.19410

    Epoch                           : 2026 Jul 10
    Reference                       : MPC194192

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

Ephemerides

Date       Time       RA (2000)    DEC (2000)    delta   radius  elong  phase   PA    magn
2026-07-10 00:00 UT   01 37 12.9   +45 19 42     8.528    8.247   70.6    6.7   257   21.4 
2026-07-11 00:00 UT   01 37 01.4   +45 25 38     8.515    8.248   71.4    6.7   257   21.4 
2026-07-11 01:39 UT   01 37 00.5   +45 26 03     8.514    8.248   71.5    6.7   257   21.4 
2026-07-12 00:00 UT   01 36 49.1   +45 31 34     8.501    8.248   72.2    6.7   256   21.4 
2026-07-13 00:00 UT   01 36 36.2   +45 37 30     8.488    8.249   73.0    6.8   256   21.4 
2026-07-14 00:00 UT   01 36 22.5   +45 43 25     8.475    8.250   73.8    6.8   255   21.4 
2026-07-15 00:00 UT   01 36 08.1   +45 49 19     8.462    8.251   74.6    6.8   255   21.4 
2026-07-16 00:00 UT   01 35 53.1   +45 55 12     8.448    8.252   75.4    6.8   254   21.4 
2026-07-17 00:00 UT   01 35 37.2   +46 01 04     8.435    8.252   76.2    6.9   253   21.4 
2026-07-18 00:00 UT   01 35 20.7   +46 06 56     8.421    8.253   77.1    6.9   253   21.4 
2026-07-19 00:00 UT   01 35 03.4   +46 12 46     8.408    8.254   77.9    6.9   252   21.4 
2026-07-20 00:00 UT   01 34 45.3   +46 18 35     8.394    8.255   78.7    6.9   252   21.4 
2026-07-21 00:00 UT   01 34 26.5   +46 24 23     8.381    8.256   79.5    7.0   251   21.4 



    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.