C/2022 N1 (Attard-Maury)
ephemeris	date	magn	radius	delta	ra	dec	elong	phase	PA
Nearest approach	23 Jul 2022	17.8	1.620 AU	0.612 AU	19h20m	-17°47'	168.4°	7.2°	104°
Perihelion	9 Sep 2022	19.6	1.479 AU	1.706 AU	15h02m	-08°13'	59.6°	36.0°	101°
Today	30 Apr 2026	32.7	11.484 AU	11.706 AU	07h47m	+20°35'	74.8°	4.9°	100°

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)                : 0.9593140
    q (Perihelion distance)         : 1.4788730
    i (Inclination)                 : 164.72430
    Ω (Longitude of ascending node) : 301.87880
    ω (Argument of perihelion)      : 40.96530
    L (Longitude of perihelion)     : 261.93098
    B (Latitude of perihelion)      : 9.94644
    T (Time of perihelion passage)  : 2459831.76140
    P (Orbital period in years)     : 219.14

    Epoch                           : 2026 Mar 16
    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
2026-04-29 00:00 UT   07 46 57.6   +20 36 00    11.665   11.473   76.6    4.9   100   32.7 
2026-04-30 00:00 UT   07 46 59.9   +20 35 45    11.688   11.479   75.6    4.9   100   32.7 
2026-04-30 19:11 UT   07 47 02.0   +20 35 33    11.706   11.484   74.8    4.9   100   32.7 
2026-05-01 00:00 UT   07 47 02.5   +20 35 30    11.711   11.486   74.7    4.9   100   32.7 
2026-05-02 00:00 UT   07 47 05.4   +20 35 13    11.733   11.492   73.7    4.8   100   32.7 
2026-05-03 00:00 UT   07 47 08.7   +20 34 55    11.756   11.498   72.7    4.8   100   32.7 
2026-05-04 00:00 UT   07 47 12.3   +20 34 37    11.779   11.504   71.8    4.8   101   32.7 
2026-05-05 00:00 UT   07 47 16.2   +20 34 18    11.801   11.510   70.8    4.7   101   32.8 
2026-05-06 00:00 UT   07 47 20.4   +20 33 58    11.823   11.516   69.9    4.7   101   32.8 
2026-05-07 00:00 UT   07 47 25.0   +20 33 38    11.846   11.522   68.9    4.7   101   32.8 
2026-05-08 00:00 UT   07 47 29.8   +20 33 16    11.868   11.528   68.0    4.7   101   32.8 
2026-05-09 00:00 UT   07 47 35.0   +20 32 54    11.890   11.534   67.0    4.6   101   32.8 
2026-05-10 00:00 UT   07 47 40.5   +20 32 31    11.912   11.540   66.1    4.6   101   32.8 

    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.