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Comet 71P/Clark

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Comet 71P/Clark Sky Charts and Coordinates

This is a simplified sky chart, showing where Comet 71P/Clark 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 71P/Clark in Sagittarius on September, 22 2017
18h 52m 59s
-35° 45’ 42”
 = 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 71P/Clark Rise and Set Times

Today's Comet 71P/Clark rise, transit and set times from Greenwich, United Kingdom [change]. All times are relative to the local timezone Europe/London.

Azimuth: 125.8°
Max altitude: 2.8°
Azimuth: 234.2°

Comet 71P/Clark Orbit Diagram

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Comet 71P/Clark with respect of the Sun and the orbits of the major planets. The position of Comet 71P/Clark 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!

Comet 71P/Clark Ephemeris

The following table lists the ephemerides of Comet 71P/Clark computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Comet 71P/Clark in our Online Planetarium at the chosen date.

Date MagnitudeMag Right AscensionR.A. DeclinationDec. Constellation
2017 Sep 15 15.14 18h 35m 48s -36° 27’ 39” Sagittarius
2017 Sep 16 15.17 18h 38m 14s -36° 22’ 09” Sagittarius
2017 Sep 17 15.20 18h 40m 41s -36° 16’ 29” Sagittarius
2017 Sep 18 15.23 18h 43m 09s -36° 10’ 40” Sagittarius
2017 Sep 19 15.26 18h 45m 37s -36° 04’ 40” Sagittarius
2017 Sep 20 15.29 18h 48m 03s -35° 58’ 31” Sagittarius
2017 Sep 21 15.32 18h 50m 31s -35° 52’ 10” Sagittarius
2017 Sep 22 15.35 18h 52m 59s -35° 45’ 42” Sagittarius
2017 Sep 23 15.38 18h 55m 27s -35° 39’ 03” Sagittarius
2017 Sep 24 15.42 18h 57m 53s -35° 32’ 16” Sagittarius
2017 Sep 25 15.45 19h 00m 21s -35° 25’ 18” Sagittarius
2017 Sep 26 15.48 19h 02m 48s -35° 18’ 14” Sagittarius
2017 Sep 27 15.51 19h 05m 16s -35° 10’ 59” Sagittarius
2017 Sep 28 15.54 19h 07m 44s -35° 03’ 36” Sagittarius

Distance of Comet 71P/Clark from Earth

The following chart shows the distance of Comet 71P/Clark 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.

Distance of Comet 71P/Clark from Earth between January 2013 and December 2075

Light Curve of Comet 71P/Clark

The following chart is the predicted light curve (visual magnitude as a function of time) of Comet 71P/Clark, 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 71P/Clark between January 2013 and December 2075

Comet 71P/Clark Orbital Elements

The following table lists the orbital elements of Comet 71P/Clark at epoch 18 November 2014 00:00 UTC (JD: 2456980.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.49598146
Orbit inclination i 9.45481110°
Perihelion distance q 1.57883371 AU
236,190,161 km
Aphelion distance Q 4.68614894 AU
701,037,904 km
Semi-major axis a 3.13249132 AU
468,614,033 km
Orbital period period 5.5400 years
2,025.0383 days
Date of perihelion transit Tp 2017-Jun-29 22:18:26
2,457,934.4295 JD
Next perihelion transit 2023-Jan-14 23:13
2,459,959.4678 JD
Argument of perihelion peri 208.99722407982°
Longitude of the ascending node node 59.583568300512°
Mean anomaly M 190.41574541651°
Mean motion n 0.17777442°/day
Closest approach to Earth* 2017-Jun-11
Distance of closest approach* 0.58936822 AU
88,168,230 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.