472P/NEAT-LINEAR
ephemeris	date	magn	radius	delta	ra	dec	elong	phase	PA
Perihelion	13 Jul 2024	16.7	3.386 AU	4.139 AU	04h55m	+17°03'	37.2°	10.5°	256°
Nearest approach	19 Dec 2024	15.9	3.563 AU	2.609 AU	06h28m	+09°23'	163.4°	4.5°	329°
Today	26 Nov 2025	18.4	4.726 AU	4.642 AU	10h12m	+00°31'	88.8°	12.1°	291°

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 8.3 + 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 472P/NEAT-LINEAR are:

    e (Eccentricity)                : 0.5638760
    q (Perihelion distance)         : 3.3863990
    i (Inclination)                 : 10.82630
    Ω (Longitude of ascending node) : 205.81000
    ω (Argument of perihelion)      : 218.80510
    L (Longitude of perihelion)     : 244.11358
    B (Latitude of perihelion)      : -6.75992
    T (Time of perihelion passage)  : 2460505.19810
    P (Orbital period in years)     : 21.64

    Epoch                           : 2025 Nov 25
    Reference                       : MPEC 2025-W75

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

Ephemerides

Date       Time       RA (2000)    DEC (2000)    delta   radius  elong  phase   PA    magn
2025-11-25 00:00 UT   10 12 20.1   +00 35 00     4.655    4.722   87.8   12.1   291   18.4 
2025-11-26 00:00 UT   10 12 39.0   +00 31 37     4.644    4.726   88.7   12.1   291   18.4 
2025-11-26 02:43 UT   10 12 41.1   +00 31 14     4.642    4.726   88.8   12.1   291   18.4 
2025-11-27 00:00 UT   10 12 57.2   +00 28 18     4.632    4.730   89.6   12.0   291   18.4 
2025-11-28 00:00 UT   10 13 14.6   +00 25 02     4.621    4.734   90.5   12.0   291   18.4 
2025-11-29 00:00 UT   10 13 31.3   +00 21 51     4.609    4.738   91.5   12.0   291   18.4 
2025-11-30 00:00 UT   10 13 47.2   +00 18 43     4.598    4.743   92.4   12.0   292   18.4 
2025-12-01 00:00 UT   10 14 02.4   +00 15 39     4.587    4.747   93.3   12.0   292   18.4 
2025-12-02 00:00 UT   10 14 16.8   +00 12 40     4.575    4.751   94.2   11.9   292   18.3 
2025-12-03 00:00 UT   10 14 30.4   +00 09 44     4.564    4.755   95.1   11.9   292   18.3 
2025-12-04 00:00 UT   10 14 43.3   +00 06 53     4.552    4.759   96.1   11.9   292   18.3 
2025-12-05 00:00 UT   10 14 55.4   +00 04 07     4.541    4.763   97.0   11.9   292   18.3 
2025-12-06 00:00 UT   10 15 06.7   +00 01 24     4.530    4.767   98.0   11.8   293   18.3 

    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.