C/2022 N1 (Attard-Maury)
ephemeris	date	magn	radius	delta	ra	dec	elong	phase	PA
Nearest approach	22 Jul 2022	17.8	1.620 AU	0.612 AU	19h20m	-17°44'	168.4°	7.2°	104°
Perihelion	9 Sep 2022	19.6	1.479 AU	1.704 AU	15h01m	-08°12'	59.7°	36.0°	101°
Today	2 Aug 2026	33.2	12.046 AU	13.043 AU	08h06m	+19°27'	10.3°	0.9°	278°

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 16.8 + 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 N1 (Attard-Maury) are:

    e (Eccentricity)                : 0.9592300
    q (Perihelion distance)         : 1.4788910
    i (Inclination)                 : 164.72400
    Ω (Longitude of ascending node) : 301.87880
    ω (Argument of perihelion)      : 40.95820
    L (Longitude of perihelion)     : 261.93808
    B (Latitude of perihelion)      : 9.94519
    T (Time of perihelion passage)  : 2459831.58280
    P (Orbital period in years)     : 218.47

    Epoch                           : 2026 May 29
    Reference                       : MPC194180

    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
2026-08-01 00:00 UT   08 05 45.6   +19 28 55    13.038   12.037    9.0    0.8   277   33.2 
2026-08-02 00:00 UT   08 06 01.1   +19 27 57    13.041   12.043    9.9    0.8   277   33.2 
2026-08-02 11:45 UT   08 06 08.6   +19 27 29    13.043   12.046   10.3    0.9   278   33.2 
2026-08-03 00:00 UT   08 06 16.5   +19 26 60    13.044   12.049   10.8    0.9   278   33.2 
2026-08-04 00:00 UT   08 06 31.8   +19 26 03    13.046   12.055   11.7    1.0   278   33.2 
2026-08-05 00:00 UT   08 06 47.0   +19 25 05    13.049   12.061   12.6    1.0   278   33.2 
2026-08-06 00:00 UT   08 07 02.2   +19 24 08    13.051   12.067   13.5    1.1   279   33.2 
2026-08-07 00:00 UT   08 07 17.3   +19 23 11    13.052   12.073   14.4    1.2   279   33.2 
2026-08-08 00:00 UT   08 07 32.3   +19 22 14    13.054   12.079   15.3    1.3   279   33.2 
2026-08-09 00:00 UT   08 07 47.2   +19 21 17    13.055   12.085   16.1    1.3   279   33.2 
2026-08-10 00:00 UT   08 08 02.1   +19 20 20    13.056   12.090   17.0    1.4   279   33.2 
2026-08-11 00:00 UT   08 08 16.8   +19 19 23    13.056   12.096   17.9    1.5   280   33.2 
2026-08-12 00:00 UT   08 08 31.4   +19 18 27    13.057   12.102   18.8    1.5   280   33.2 

    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.