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Comet 71P/Clark

Available Resources

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 Capricornus on November, 21 2017
High Precision Live Sky Chart
21h 11m 38s
-25° 44’ 38”
 = 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: 115.7°
Max altitude: 12.8°
Azimuth: 244.3°

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 Nov 14 16.95 20h 56m 39s -27° 09’ 57” Capricornus
2017 Nov 15 16.98 20h 58m 49s -26° 57’ 56” Capricornus
2017 Nov 16 17.01 21h 00m 57s -26° 45’ 50” Capricornus
2017 Nov 17 17.03 21h 03m 06s -26° 33’ 41” Capricornus
2017 Nov 18 17.06 21h 05m 14s -26° 21’ 29” Capricornus
2017 Nov 19 17.09 21h 07m 23s -26° 09’ 15” Capricornus
2017 Nov 20 17.12 21h 09m 30s -25° 56’ 57” Capricornus
2017 Nov 21 17.15 21h 11m 38s -25° 44’ 38” Capricornus
2017 Nov 22 17.17 21h 13m 44s -25° 32’ 15” Capricornus
2017 Nov 23 17.20 21h 15m 50s -25° 19’ 50” Capricornus
2017 Nov 24 17.23 21h 17m 56s -25° 07’ 22” Capricornus
2017 Nov 25 17.26 21h 20m 00s -24° 54’ 51” Capricornus
2017 Nov 26 17.29 21h 22m 05s -24° 42’ 19” Capricornus
2017 Nov 27 17.31 21h 24m 11s -24° 29’ 44” Capricornus

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. The value of the distance of 71P/Clark is also available as a real time updated value in the Live Position and Data Tracker.

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 25 February 2015 00:00 UTC (JD: 2457079.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.49569881
Orbit inclination i 9.45147347°
Perihelion distance q 1.58006668 AU
236,374,612 km
Aphelion distance Q 4.68629447 AU
701,059,676 km
Semi-major axis a 3.13318058 AU
468,717,144 km
Orbital period period 5.5500 years
2,025.7067 days
Date of perihelion transit Tp 2017-Jun-30 00:46:42
2,457,934.5324 JD
Next perihelion transit 2023-Jan-15 17:44
2,459,960.2391 JD
Argument of perihelion peri 208.99455498446°
Longitude of the ascending node node 59.569043341198°
Mean anomaly M 208.04726422959°
Mean motion n 0.17771576°/day
Closest approach to Earth* 2017-Jun-11
Distance of closest approach* 0.58986180 AU
88,242,069 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.