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Comet 81P/Wild 2

Available Resources

Comet 81P/Wild 2 Sky Charts and Coordinates

This is a simplified sky chart, showing where Comet 81P/Wild 2 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 81P/Wild 2 in Aquarius on July, 20 2018
High Precision Live Sky Chart
22h 48m 47s
-08° 41’ 23”
21.25
 = 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 81P/Wild 2 Rise and Set Times

Today's Comet 81P/Wild 2 rise, transit and set times from Greenwich, United Kingdom [change]. All times are relative to the local timezone Europe/London.

Azimuth: 98.7°
Max altitude: 29.8°
Azimuth: 261.3°

Comet 81P/Wild 2 Orbit Diagram

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Comet 81P/Wild 2 with respect of the Sun and the orbits of the major planets. The position of Comet 81P/Wild 2 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!

Orbit Diagram of Comet 81P/Wild 2
View Comet 81P/Wild 2 in the 3D Solar System Simulator

Comet 81P/Wild 2 Ephemeris

The following table lists the ephemerides of Comet 81P/Wild 2 computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Comet 81P/Wild 2 in our Online Planetarium at the chosen date.

Date MagnitudeMag Right AscensionR.A. DeclinationDec. Constellation
2018 Jul 13 21.26 22h 51m 06s -08° 23’ 54” Aquarius
2018 Jul 14 21.26 22h 50m 48s -08° 26’ 11” Aquarius
2018 Jul 15 21.26 22h 50m 30s -08° 28’ 32” Aquarius
2018 Jul 16 21.26 22h 50m 11s -08° 30’ 57” Aquarius
2018 Jul 17 21.26 22h 49m 50s -08° 33’ 28” Aquarius
2018 Jul 18 21.26 22h 49m 29s -08° 36’ 02” Aquarius
2018 Jul 19 21.25 22h 49m 09s -08° 38’ 40” Aquarius
2018 Jul 20 21.25 22h 48m 47s -08° 41’ 23” Aquarius
2018 Jul 21 21.25 22h 48m 24s -08° 44’ 12” Aquarius
2018 Jul 22 21.25 22h 48m 00s -08° 47’ 03” Aquarius
2018 Jul 23 21.25 22h 47m 35s -08° 49’ 59” Aquarius
2018 Jul 24 21.25 22h 47m 09s -08° 52’ 58” Aquarius
2018 Jul 25 21.25 22h 46m 45s -08° 56’ 02” Aquarius
2018 Jul 26 21.25 22h 46m 18s -08° 59’ 08” Aquarius

Distance of Comet 81P/Wild 2 from Earth

The following chart shows the distance of Comet 81P/Wild 2 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 81P/Wild 2 is also available as a real time updated value in the Live Position and Data Tracker.

Distance of Comet 81P/Wild 2 from Earth between January 2013 and December 2075

Light Curve of Comet 81P/Wild 2

The following chart is the predicted light curve (visual magnitude as a function of time) of Comet 81P/Wild 2, 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 81P/Wild 2 between January 2013 and December 2075

Comet 81P/Wild 2 Orbital Elements

The following table lists the orbital elements of Comet 81P/Wild 2 at epoch 04 September 2011 00:00 UTC (JD: 2455809.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.53707073
Orbit inclination i 3.23724755°
Perihelion distance q 1.59796866 AU
239,052,710 km
Aphelion distance Q 5.30575839 AU
793,730,159 km
Semi-major axis a 3.45186353 AU
516,391,435 km
Orbital period period 6.4100 years
2,342.4960 days
Date of perihelion transit Tp 2010-Feb-22 13:28:30
2,455,250.0615 JD
Next perihelion transit 2016-Jul-23 01:22
2,457,592.5574 JD
Argument of perihelion peri 41.75623208556°
Longitude of the ascending node node 136.09768554074°
Mean anomaly M 85.975761164276°
Mean motion n 0.15368223°/day
Closest approach to Earth* 2042-Apr-05
Distance of closest approach* 0.65385245 AU
97,814,934 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.