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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 Cetus on May, 25 2018
High Precision Live Sky Chart
02h 15m 06s
+09° 08’ 03”
 = 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: 80.9°
Max altitude: 47.7°
Azimuth: 279.1°

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
2018 May 18 20.40 02h 06m 09s +08° 16’ 35” Pisces
2018 May 19 20.41 02h 07m 26s +08° 24’ 07” Cetus
2018 May 20 20.41 02h 08m 44s +08° 31’ 36” Cetus
2018 May 21 20.42 02h 10m 00s +08° 39’ 02” Cetus
2018 May 22 20.43 02h 11m 17s +08° 46’ 23” Cetus
2018 May 23 20.44 02h 12m 33s +08° 53’ 40” Cetus
2018 May 24 20.45 02h 13m 50s +09° 00’ 54” Cetus
2018 May 25 20.45 02h 15m 06s +09° 08’ 03” Cetus
2018 May 26 20.46 02h 16m 22s +09° 15’ 10” Cetus
2018 May 27 20.47 02h 17m 38s +09° 22’ 11” Cetus
2018 May 28 20.47 02h 18m 52s +09° 29’ 09” Cetus
2018 May 29 20.48 02h 20m 07s +09° 36’ 03” Cetus
2018 May 30 20.49 02h 21m 21s +09° 42’ 55” Cetus
2018 May 31 20.50 02h 22m 36s +09° 49’ 41” Cetus

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 May 2017 00:00 UTC (JD: 2457899.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.49437814
Orbit inclination i 9.44534059°
Perihelion distance q 1.58621399 AU
237,294,236 km
Aphelion distance Q 4.68809542 AU
701,329,094 km
Semi-major axis a 3.13715471 AU
469,311,665 km
Orbital period period 5.5600 years
2,029.5620 days
Date of perihelion transit Tp 2017-Jun-30 04:53:53
2,457,934.7041 JD
Next perihelion transit 2023-Jan-19 18:23
2,459,964.2661 JD
Argument of perihelion peri 208.91678674111°
Longitude of the ascending node node 59.446279947463°
Mean anomaly M 353.75556367838°
Mean motion n 0.17737817°/day
Closest approach to Earth* 2017-Jun-11
Distance of closest approach* 0.58986000 AU
88,241,799 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.