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P/2022 R5 (PANSTARRS)
ephemeris date magn radius delta ra dec elong phase PA
Today14 Jan 202624.33.418 AU3.835 AU 15h48m-06°38'58.1°14.1°291°
Nearest approach7 Sep 202720.82.479 AU1.507 AU 23h39m-23°47'160.3°7.9°332°
Perihelion12 Oct 202721.02.473 AU1.645 AU 23h18m-26°29'137.4°15.9°42°
P/2022 R5 (PANSTARRS)- 2026-01-14
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 light curve is based on the absolute magnitude and slope parameter as calculated from an MPEC, or the latest values provided by the minor planet center. (16.0 + 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 P/2022 R5 (PANSTARRS) are: 

    e (Eccentricity)                : 0.1945480
    q (Perihelion distance)         : 2.4731890
    i (Inclination)                 : 15.29230
    Ω (Longitude of ascending node) : 115.03970
    ω (Argument of perihelion)      : 240.49870
    L (Longitude of perihelion)     : 174.64503
    B (Latitude of perihelion)      : -13.27044
    T (Time of perihelion passage)  : 2461690.54950
    P (Orbital period in years)     : 5.38

    Epoch                           : 2026 Jan 13
    Reference                       : MPEC 2022-WQ9

    Classification(s):              : Ecliptic; Active asteroid
    Tisserand (Jupiter)             : 3.148

Ephemerides

Date       Time       RA (2000)    DEC (2000)    delta   radius  elong  phase   PA    magn
2026-01-13 00:00 UT   15 47 11.9   -06 36 12     3.848    3.420   57.3   14.0   291   24.3 
2026-01-14 00:00 UT   15 48 17.9   -06 38 00     3.835    3.418   58.1   14.1   291   24.3 
2026-01-14 00:01 UT   15 48 17.9   -06 38 00     3.835    3.418   58.1   14.1   291   24.3 
2026-01-15 00:00 UT   15 49 23.4   -06 39 44     3.821    3.417   58.8   14.3   291   24.2 
2026-01-16 00:00 UT   15 50 28.5   -06 41 24     3.808    3.415   59.5   14.4   291   24.2 
2026-01-17 00:00 UT   15 51 33.3   -06 42 58     3.794    3.414   60.2   14.5   290   24.2 
2026-01-18 00:00 UT   15 52 37.6   -06 44 28     3.780    3.413   60.9   14.6   290   24.2 
2026-01-19 00:00 UT   15 53 41.5   -06 45 53     3.766    3.411   61.7   14.7   290   24.2 
2026-01-20 00:00 UT   15 54 45.0   -06 47 13     3.752    3.410   62.4   14.8   289   24.2 
2026-01-21 00:00 UT   15 55 48.0   -06 48 29     3.738    3.408   63.1   14.9   289   24.2 
2026-01-22 00:00 UT   15 56 50.6   -06 49 40     3.724    3.407   63.9   15.0   289   24.2 
2026-01-23 00:00 UT   15 57 52.7   -06 50 46     3.710    3.405   64.6   15.1   288   24.2 
2026-01-24 00:00 UT   15 58 54.3   -06 51 47     3.695    3.404   65.3   15.2   288   24.2 




    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.

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