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Comet 9P/Tempel 1

Available Resources

Comet 9P/Tempel 1 Sky Charts and Coordinates

This is a simplified sky chart, showing where Comet 9P/Tempel 1 is now with respect to the brightest stars and constellations.

More advanced sky charts are available on TheSkyLive for this object: 1) the Online Planetarium which is interactive and allows to select dates and additional objects to visualize; and 2) the Live Position and Data Tracker which provides the highest precision position data and features deep sky imagery from the Digitized Sky Survey.

Comet 9P/Tempel 1 in Taurus on July, 17 2018
High Precision Live Sky Chart
03h 46m 06s
+16° 15’ 21”
21.73
 = visible to the naked eye
 = binocular, brighter than 10th magnitude
= current altitude ≥ 30°   = current altitude < 30°   = below the horizon
Location: Greenwich, United Kingdom [change]

Comet 9P/Tempel 1 Rise and Set Times

Today's Comet 9P/Tempel 1 rise, transit and set times from Greenwich, United Kingdom [change]. All times are relative to the local timezone Europe/London.

Azimuth: 73.7°
Max altitude: 54.8°
Azimuth: 286.3°

Comet 9P/Tempel 1 Orbit Diagram

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Comet 9P/Tempel 1 with respect of the Sun and the orbits of the major planets. The position of Comet 9P/Tempel 1 and the planets along their orbits in this diagram accurately represents the current configuration of the objects in the Solar System. This is an experimental feature and it requires a WebGL enabled browser. Please provide us feedback!

Orbit Diagram of Comet 9P/Tempel 1
View Comet 9P/Tempel 1 in the 3D Solar System Simulator

Comet 9P/Tempel 1 Ephemeris

The following table lists the ephemerides of Comet 9P/Tempel 1 computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Comet 9P/Tempel 1 in our Online Planetarium at the chosen date.

Date MagnitudeMag Right AscensionR.A. DeclinationDec. Constellation
2018 Jul 10 21.75 03h 41m 04s +15° 57’ 42” Taurus
2018 Jul 11 21.75 03h 41m 48s +16° 00’ 20” Taurus
2018 Jul 12 21.75 03h 42m 33s +16° 02’ 57” Taurus
2018 Jul 13 21.75 03h 43m 17s +16° 05’ 30” Taurus
2018 Jul 14 21.74 03h 43m 59s +16° 08’ 03” Taurus
2018 Jul 15 21.74 03h 44m 43s +16° 10’ 32” Taurus
2018 Jul 16 21.74 03h 45m 24s +16° 12’ 57” Taurus
2018 Jul 17 21.73 03h 46m 06s +16° 15’ 21” Taurus
2018 Jul 18 21.73 03h 46m 47s +16° 17’ 44” Taurus
2018 Jul 19 21.73 03h 47m 29s +16° 20’ 03” Taurus
2018 Jul 20 21.72 03h 48m 10s +16° 22’ 19” Taurus
2018 Jul 21 21.72 03h 48m 50s +16° 24’ 33” Taurus
2018 Jul 22 21.72 03h 49m 28s +16° 26’ 45” Taurus
2018 Jul 23 21.71 03h 50m 08s +16° 28’ 55” Taurus

Distance of Comet 9P/Tempel 1 from Earth

The following chart shows the distance of Comet 9P/Tempel 1 from Earth as a function of time. Distance data is measured in Astronomical Units and sampled with a 2 days interval.

The reported distances might be inaccurate around the times of closest approach for objects passing extremely close to Earth. The value of the distance of 9P/Tempel 1 is also available as a real time updated value in the Live Position and Data Tracker.

Distance of Comet 9P/Tempel 1 from Earth between January 2013 and December 2075

Light Curve of Comet 9P/Tempel 1

The following chart is the predicted light curve (visual magnitude as a function of time) of Comet 9P/Tempel 1, according to the most recent ephemerides data. Magnitude data is sampled with a 2 days interval and there might be inaccuracies for objects changing brightness very rapidly during the course of a few days. For comets there could be large discrepancies between the observed and predicted brightness because of their highly dynamic behaviour.

Predicted magnitude of Comet 9P/Tempel 1 between January 2013 and December 2075

Comet 9P/Tempel 1 Orbital Elements

The following table lists the orbital elements of Comet 9P/Tempel 1 at epoch 10 May 2016 00:00 UTC (JD: 2457519.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.50964598
Orbit inclination i 10.47374985°
Perihelion distance q 1.54255281 AU
230,762,617 km
Aphelion distance Q 4.74903552 AU
710,445,603 km
Semi-major axis a 3.14579417 AU
470,604,110 km
Orbital period period 5.5800 years
2,037.9517 days
Date of perihelion transit Tp 2016-Aug-02 13:49:36
2,457,603.0761 JD
Next perihelion transit 2022-Mar-02 12:40
2,459,641.0278 JD
Argument of perihelion peri 179.20203243°
Longitude of the ascending node node 68.750139039454°
Mean anomaly M 345.23644948366°
Mean motion n 0.17664796°/day
Closest approach to Earth* 2040-Jun-16
Distance of closest approach* 0.94602055 AU
141,522,660 km

* NOTE: values for the closest approach are computed for the time interval between 2013-Jan-01 and 2075-Dec-31, with a sampling interval of 1 day.