C/2022 J1 (Maury-Attard)
ephemeris	date	magn	radius	delta	ra	dec	elong	phase	PA
Perihelion	19 Feb 2022	18.7	1.596 AU	2.291 AU	22h09m	-46°57'	35.7°	21.2°	180°
Nearest approach	13 Jun 2022	18.7	2.170 AU	1.250 AU	19h28m	-08°11'	146.6°	14.9°	240°
Today	19 May 2026	31.5	12.838 AU	12.647 AU	16h09m	+61°34'	98.6°	4.5°	186°

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. (14.9 + 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 J1 (Maury-Attard) are:

    e (Eccentricity)                : 0.9662860
    q (Perihelion distance)         : 1.5961100
    i (Inclination)                 : 105.95970
    Ω (Longitude of ascending node) : 280.80270
    ω (Argument of perihelion)      : 305.54840
    L (Longitude of perihelion)     : 301.84909
    B (Latitude of perihelion)      : -51.46832
    T (Time of perihelion passage)  : 2459630.11620
    P (Orbital period in years)     : 325.75

    Epoch                           : 2026 May 18
    Reference                       : MPEC 2026-E44

    Classification(s):              : Nearly isotropic; Returning (a < 10000 AU); External (P > 200 years)

Ephemerides

Date       Time       RA (2000)    DEC (2000)    delta   radius  elong  phase   PA    magn
2026-05-18 00:00 UT   16 10 04.4   +61 32 50    12.637   12.831   98.8    4.5   188   31.5 
2026-05-19 00:00 UT   16 09 23.2   +61 33 58    12.646   12.837   98.6    4.5   187   31.5 
2026-05-19 03:58 UT   16 09 16.4   +61 34 09    12.647   12.838   98.6    4.5   186   31.5 
2026-05-20 00:00 UT   16 08 42.1   +61 35 01    12.655   12.843   98.4    4.5   185   31.5 
2026-05-21 00:00 UT   16 08 00.8   +61 35 58    12.664   12.849   98.3    4.5   184   31.5 
2026-05-22 00:00 UT   16 07 19.5   +61 36 50    12.673   12.854   98.1    4.5   183   31.5 
2026-05-23 00:00 UT   16 06 38.3   +61 37 36    12.682   12.860   97.9    4.5   182   31.5 
2026-05-24 00:00 UT   16 05 57.0   +61 38 17    12.691   12.866   97.7    4.5   181   31.5 
2026-05-25 00:00 UT   16 05 15.7   +61 38 52    12.700   12.872   97.5    4.5   180   31.5 
2026-05-26 00:00 UT   16 04 34.5   +61 39 22    12.709   12.878   97.3    4.5   179   31.5 
2026-05-27 00:00 UT   16 03 53.4   +61 39 46    12.718   12.884   97.1    4.5   178   31.5 
2026-05-28 00:00 UT   16 03 12.3   +61 40 05    12.728   12.889   96.9    4.5   177   31.5 
2026-05-29 00:00 UT   16 02 31.3   +61 40 19    12.737   12.895   96.7    4.5   175   31.5 

    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.