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Sunrise: 4:46 
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Comet 71P/Clark

Below the horizon.  Rise: 3:36 | Tran: 12:03 | Set: 20:31
Alt: -0.47°   Az: 315.35°   Direction: South-South-West

Comet 71P/Clark is in the constellation of Taurus, at a distance of 842,800,931.0 kilometers from Earth. The current Right Ascension is 05h 27m 22s and the Declination is +25° 53’ 20” (apparent coordinates). The estimated magnitude of comet 71P/Clark, computed using JPL Horizons's data, is 24.37).

Finder Charts

The sky charts below show, at different resolutions, the position of comet 71P/Clark in the sky. Click on each chart to access the interactive star map tool.

Star map showing the position of comet 71P/Clark in the constellation of Taurus on F, d Y. Field of view: 50x30 degrees. View interactive star map.
Star map showing the position of comet 71P/Clark in the constellation of Taurus on F, d Y. Field of view: 15x9 degrees. View in interactive star map.

The following map uses photographic imagery from the Digitized Sky Survey (DSS) to realistically visualize the precise position of comet 71P/Clark against the stars in the background. The horizontal size of the map measures 60 arcminutes. Click on the image to access a more detailed full-screen view.

71P/Clark
RA: 05h 25m 48s
Dec: +25° 52’ 06”
Simplified high-resolution deep sky chart showing the current position of comet 71P/Clark. Field of view: 60 x 40 arcminutes. Go to the dedicated page

Equatorial Coordinates

Apparent

05h 27m 22s
+25° 53’ 20”
08h 34m 31s
14h 01m 54s

J2000

05h 25m 48s
+25° 52’ 06”

Additional Information

Taurus
n/a
n/a
n/a
n/a
24.37

The observed values of Magnitude, Coma Diameter and Tail Length are derived from the most recent observation recorded at the Comet Observers Database. The value of Predicted Magnitude comes from the JPL Horizons ephemerides service and, in the case of comets, might be inaccurate given the highly dynamic and unpredictable behavior of these objects. When available, please refer to the Observed Magnitude value and consider the Predicted Magnitude as a directional indication. We acknowledge with thanks the comet observations from the COBS Comet Observation Database contributed by observers worldwide and used in this table to report recent comet observations.

Rise and Set Times

The following table lists today's rise, transit and set times of comet 71P/Clark from Greenwich, UK (all times relative to the local timezone Europe/London):

Azimuth: 64.1°
Max altitude: 64.4°
Azimuth: 295.9°

If you need to access this information frequently for your observations, you can create a simple customized Quick Access page, so that you can easily bookmark it in your browser favorites or add a shortcut to your mobile phones' home screen.

Distance from Earth

The distance of comet 71P/Clark from Earth is currently 842,800,931.0 kilometers, equivalent to 5.6337762500 Astronomical Units. Light takes 46m 51.281s to travel from comet 71P/Clark and arrive to us.

842,800,931.0
5.6337762500
46m 51.281s

The following graph shows the distance of comet 71P/Clark from Earth as a function of time. In the chart the distance is measured in Astronomical Units and the data is sampled with an interval of 1 day.

Chart of the distance of comet 71P/Clark from Earth in Astronomical Units (au)
Note: The values in this chart may not be entirely accurate around the time of closest approach for objects passing very close to Earth at high speed (e.g., Near-Earth Objects).

The value of the distance of 71P/Clark from Earth is also available as a real time updated value in the live position tracker.

Closest Approach to Earth

In the period between January 1, 2000 and December 31, 2099, the closest approach of comet 71P/Clark to Earth happened on Tuesday 27 June 2006 at a distance of 0.585364 Astronomical Units, or 87,569,244 kilometers:

Tuesday 27 June 2006
87,569,244
0.585364

Note: the values for the closest approach are computed with a sampling interval of 1 day.

Light Curve

The following chart shows the light curve of comet 71P/Clark, i.e., its apparent magnitude as a function of time. The curve is calculated using the latest ephemerides provided by JPL Horizons. The magnitude data is sampled with the interval of 2 days. Because of this sampling, inaccuracies may occur for objects that have large variations of brightness over a few days. For comets, large discrepancies can arise between the calculated brightness and the observations due to their highly dynamic, and not always precisely predictable, behavior.

Chart of the magnitude of comet 71P/Clark as a function of time

Orbital Elements

The following table lists the orbital elements of comet 71P/Clark at epoch May, 31 2019 00:00 UTC (JD: 2458635.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.49450343
Orbit inclination i 9.44449059°
Perihelion distance q 1.58667659 AU
237,363,440 km
Aphelion distance Q 4.69101815 AU
701,766,329 km
Semi-major axis a 3.13884737 AU
469,564,885 km
Orbital period period 5.5611 years
2,031.2049 days
Date of perihelion transit Tp June 30, 2017
2,457,934.8670 JD
Next perihelion transit January 21, 2023
2,459,966.0718 JD
Argument of perihelion peri 208.96965623934°
Longitude of the ascending node node 59.44353715572°
Mean anomaly M 124.17649209947°
Mean motion n 0.17723471°/day

Orbit Visualization

The following chart is a 3D animated visualization of the orbit of comet 71P/Clark relative to the other major objects in the Solar System. You can access more advanced features using our 3D Solar System Viewer.

15 Days Ephemeris

The following table lists the ephemerides of comet 71P/Clark computed for the past and next 7 days, with a 24 hours interval. Apparent celestial coordinates are provided.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
Jun 20 2025 05h 19m 33s +25° 41’ 49” 24.37 Taurus
Jun 21 2025 05h 20m 33s +25° 43’ 20” 24.37 Taurus
Jun 22 2025 05h 21m 34s +25° 44’ 52” 24.37 Taurus
Jun 23 2025 05h 22m 34s +25° 46’ 22” 24.37 Taurus
Jun 24 2025 05h 23m 34s +25° 47’ 52” 24.37 Taurus
Jun 25 2025 05h 24m 34s +25° 49’ 20” 24.37 Taurus
Jun 26 2025 05h 25m 33s +25° 50’ 46” 24.37 Taurus
Jun 27 2025 05h 26m 33s +25° 52’ 11” 24.37 Taurus
Jun 28 2025 05h 27m 33s +25° 53’ 36” 24.37 Taurus
Jun 29 2025 05h 28m 32s +25° 55’ 00” 24.37 Taurus
Jun 30 2025 05h 29m 32s +25° 56’ 22” 24.37 Taurus
Jul 01 2025 05h 30m 31s +25° 57’ 43” 24.37 Taurus
Jul 02 2025 05h 31m 30s +25° 59’ 03” 24.37 Taurus
Jul 03 2025 05h 32m 29s +26° 00’ 22” 24.37 Taurus

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