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C/2023 V4 (Camarasa-Duszanowicz)
ephemeris date magn radius delta ra dec elong phase PA
Perihelion30 May 202410.91.122 AU1.938 AU05h00m+47°19'26.3°23.6°16°
Nearest approach3 Jul 202411.51.251 AU1.799 AU08h56m+59°06'42.3°33.2°45°
Today18 Oct 202525.96.070 AU6.850 AU15h54m-20°12'35.7°5.5°102°
C/2023 V4 (Camarasa-Duszanowicz)- 2025-10-18
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. This lightcurve is being recalculated every 6 hours based on the available COBS/MPC observations (currently 8.6 + 5 log[∆] + 16.8 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/2023 V4 (Camarasa-Duszanowicz) are: 

    e (Eccentricity)                : 1.0012250
    q (Perihelion distance)         : 1.1219660
    i (Inclination)                 : 67.12070
    Ω (Longitude of ascending node) : 66.32710
    ω (Argument of perihelion)      : 50.87500
    L (Longitude of perihelion)     : 91.87402
    B (Latitude of perihelion)      : 45.62174
    T (Time of perihelion passage)  : 2460460.91540

    Epoch                           : 2025 Oct 17
    Reference                       : MPC185658

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

Ephemerides

Date       Time       RA (2000)    DEC (2000)    delta   radius  elong  phase   PA    magn
2025-10-17 00:00 UT   15 53 45.5   -20 07 02     6.821    6.056   37.0    5.7   102   25.9 
2025-10-18 00:00 UT   15 54 18.5   -20 10 42     6.840    6.065   36.2    5.6   102   25.9 
2025-10-18 13:04 UT   15 54 36.5   -20 12 42     6.850    6.070   35.7    5.5   102   25.9 
2025-10-19 00:00 UT   15 54 51.7   -20 14 22     6.859    6.074   35.3    5.4   102   25.9 
2025-10-20 00:00 UT   15 55 25.0   -20 18 01     6.877    6.083   34.5    5.3   102   25.9 
2025-10-21 00:00 UT   15 55 58.6   -20 21 39     6.895    6.092   33.6    5.2   102   25.9 
2025-10-22 00:00 UT   15 56 32.4   -20 25 18     6.913    6.101   32.8    5.1   102   26.0 
2025-10-23 00:00 UT   15 57 06.3   -20 28 55     6.931    6.110   31.9    4.9   102   26.0 
2025-10-24 00:00 UT   15 57 40.5   -20 32 32     6.949    6.118   31.1    4.8   102   26.0 
2025-10-25 00:00 UT   15 58 14.8   -20 36 08     6.966    6.127   30.2    4.7   102   26.0 
2025-10-26 00:00 UT   15 58 49.2   -20 39 44     6.983    6.136   29.4    4.6   102   26.0 
2025-10-27 00:00 UT   15 59 23.9   -20 43 19     7.000    6.145   28.5    4.4   102   26.0 
2025-10-28 00:00 UT   15 59 58.7   -20 46 54     7.017    6.154   27.7    4.3   102   26.0 




    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.

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