130P/McNaught-Hughes
ephemeris	date	magn	radius	delta	ra	dec	elong	phase	PA
Perihelion	16 Apr 2024	15.0	1.834 AU	2.378 AU	22h53m	-11°42'	46.3°	23.3°	243°
Nearest approach	7 Oct 2024	15.3	2.323 AU	1.375 AU	02h29m	+07°29'	155.8°	10.2°	267°
Today	13 Jan 2026	21.0	4.241 AU	3.292 AU	06h27m	+27°10'	162.7°	3.9°	105°

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 9.3 + 5 log[∆] + 14.6 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 130P/McNaught-Hughes are:

    e (Eccentricity)                : 0.4607470
    q (Perihelion distance)         : 1.8338290
    i (Inclination)                 : 6.02620
    Ω (Longitude of ascending node) : 70.04830
    ω (Argument of perihelion)      : 246.89600
    L (Longitude of perihelion)     : 136.82949
    B (Latitude of perihelion)      : -5.54128
    T (Time of perihelion passage)  : 2460416.64060
    P (Orbital period in years)     : 6.27

    Epoch                           : 2026 Jan 12
    Reference                       : MPEC 2025-YF1

    Classification(s):              : Ecliptic; Jupiter family
    Tisserand (Jupiter)             : 2.957

Ephemerides

Date       Time       RA (2000)    DEC (2000)    delta   radius  elong  phase   PA    magn
2026-01-12 00:00 UT   06 28 12.4   +27 09 19     3.281    4.237  164.4    3.6   107   21.0 
2026-01-13 00:00 UT   06 27 25.2   +27 10 07     3.289    4.240  163.2    3.8   106   21.0 
2026-01-13 10:34 UT   06 27 04.6   +27 10 27     3.292    4.241  162.7    3.9   105   21.0 
2026-01-14 00:00 UT   06 26 38.5   +27 10 52     3.296    4.243  162.1    4.1   105   21.0 
2026-01-15 00:00 UT   06 25 52.5   +27 11 34     3.304    4.246  160.9    4.3   104   21.0 
2026-01-16 00:00 UT   06 25 07.1   +27 12 14     3.312    4.249  159.7    4.6   103   21.0 
2026-01-17 00:00 UT   06 24 22.5   +27 12 51     3.320    4.251  158.6    4.8   102   21.0 
2026-01-18 00:00 UT   06 23 38.5   +27 13 25     3.329    4.254  157.4    5.1   102   21.0 
2026-01-19 00:00 UT   06 22 55.3   +27 13 58     3.338    4.257  156.3    5.3   101   21.1 
2026-01-20 00:00 UT   06 22 12.9   +27 14 27     3.347    4.260  155.1    5.6   101   21.1 
2026-01-21 00:00 UT   06 21 31.2   +27 14 54     3.357    4.263  153.9    5.8   100   21.1 
2026-01-22 00:00 UT   06 20 50.5   +27 15 19     3.367    4.266  152.8    6.1   100   21.1 
2026-01-23 00:00 UT   06 20 10.6   +27 15 42     3.377    4.269  151.6    6.3    99   21.1 

    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.