10P/Tempel
ephemeris	date	magn	radius	delta	ra	dec	elong	phase	PA
Today	18 Nov 2024	22.8	4.244 AU	4.551 AU	11h35m	+10°34'	65.9°	12.3°	297°
Perihelion	2 Aug 2026	7.6	1.417 AU	0.414 AU	21h51m	-24°40'	163.7°	11.6°	292°
Nearest approach	3 Aug 2026	7.6	1.417 AU	0.414 AU	21h53m	-25°26'	164.1°	11.3°	297°

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.)

The orbital elements of 10P/Tempel are:

            e (Eccentricity)                : 0.5374430
            q (Perihelion distance)         : 1.4168970
            i (Inclination)                 : 12.02810
            Ω (Longitude of ascending node) : 117.80420
            ω (Argument of perihelion)      : 195.51180
            L (Longitude of perihelion)     : 132.99134
            B (Latitude of perihelion)      : -3.19484
            T (Time of perihelion passage)  : 2461254.67870
            P (Orbital period in years)     : 5.36

            Epoch                           : 2024 Nov 16
            Reference                       : MPEC 2024-R10

            Classification(s):              : Ecliptic; Jupiter family
            Tisserand (Jupiter)             : 2.964
        

The light curve chart below shows the estimated development of the comet's magnitude. Blue and black dots are visual and photometric CCD observations respectively from COBS or the MPC. The gray curve is based on the absolute magnitude and slope parameter as calculated from the original MPEC, or the latest values provided by the MPC (5.00 + 5 log[∆] + 25.00 log[r]), whereas the red curve is being recalculated every 6 hours based on the available COBS/MPC observations (currently 6.39 + 5 log[∆] + 20.96 log[r]).

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.
A more printer-friendly version of the same chart can be found further down this page as well.

The following chart shows the current location of the comet in a smaller, upside-down telescopic field of view.

A printable version of the short-term path of the comet in a field of view that is optimized for (~10x50) binoculars and finderscopes.

Ephemerides:

Date       Time       RA (2000)    DEC (2000)    delta   radius  elong  phase   PA    magn
2024-11-18 00:00 UT   11 35 21.4   +10 34 42     4.552    4.244   65.9   12.3   297   22.8 
2024-11-18 01:21 UT   11 35 23.8   +10 34 35     4.551    4.244   65.9   12.3   297   22.8 
2024-11-19 00:00 UT   11 36 02.2   +10 32 39     4.534    4.241   66.7   12.4   297   22.8 
2024-11-20 00:00 UT   11 36 42.6   +10 30 40     4.517    4.239   67.5   12.4   297   22.8 
2024-11-21 00:00 UT   11 37 22.4   +10 28 45     4.500    4.236   68.4   12.5   296   22.8 
2024-11-22 00:00 UT   11 38 01.8   +10 26 55     4.482    4.233   69.2   12.6   296   22.8 
2024-11-23 00:00 UT   11 38 40.8   +10 25 09     4.465    4.231   70.1   12.7   296   22.8 
2024-11-24 00:00 UT   11 39 19.2   +10 23 28     4.447    4.228   70.9   12.7   296   22.8 
2024-11-25 00:00 UT   11 39 57.1   +10 21 52     4.429    4.225   71.8   12.8   296   22.7 
2024-11-26 00:00 UT   11 40 34.5   +10 20 20     4.411    4.223   72.6   12.9   296   22.7 
2024-11-27 00:00 UT   11 41 11.4   +10 18 54     4.394    4.220   73.5   13.0   296   22.7 
2024-11-28 00:00 UT   11 41 47.8   +10 17 32     4.376    4.217   74.3   13.0   296   22.7 

    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.