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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 Aquarius on February, 18 2018
High Precision Live Sky Chart
23h 55m 20s
-06° 41’ 50”
19.61
 = 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: 96.7°
Max altitude: 31.8°
Azimuth: 263.3°

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
2018 Feb 11 19.47 23h 43m 53s -08° 07’ 59” Aquarius
2018 Feb 12 19.49 23h 45m 32s -07° 55’ 36” Aquarius
2018 Feb 13 19.51 23h 47m 11s -07° 43’ 13” Aquarius
2018 Feb 14 19.53 23h 48m 48s -07° 30’ 52” Aquarius
2018 Feb 15 19.55 23h 50m 27s -07° 18’ 34” Aquarius
2018 Feb 16 19.57 23h 52m 05s -07° 06’ 18” Aquarius
2018 Feb 17 19.59 23h 53m 44s -06° 54’ 03” Aquarius
2018 Feb 18 19.61 23h 55m 20s -06° 41’ 50” Aquarius
2018 Feb 19 19.64 23h 56m 58s -06° 29’ 40” Cetus
2018 Feb 20 19.66 23h 58m 36s -06° 17’ 31” Pisces
2018 Feb 21 19.68 00h 00m 12s -06° 05’ 26” Pisces
2018 Feb 22 19.70 00h 01m 50s -05° 53’ 21” Pisces
2018 Feb 23 19.72 00h 03m 25s -05° 41’ 21” Pisces
2018 Feb 24 19.74 00h 05m 03s -05° 29’ 21” Pisces

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 0.49437793
Orbit inclination i 9.44534007°
Perihelion distance q 1.58621389 AU
237,294,222 km
Aphelion distance Q 4.68809246 AU
701,328,651 km
Semi-major axis a 3.13715318 AU
469,311,436 km
Orbital period period 5.5600 years
2,029.5606 days
Date of perihelion transit Tp 2017-Jun-30 04:53:53
2,457,934.7041 JD
Next perihelion transit 2023-Jan-19 18:21
2,459,964.2646 JD
Argument of perihelion peri 208.91678985852°
Longitude of the ascending node node 59.446279619553°
Mean anomaly M 353.75555845739°
Mean motion n 0.17737830°/day
Closest approach to Earth* 2017-Jun-11
Distance of closest approach* 0.58986144 AU
88,242,015 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.