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Comet 81P/Wild 2

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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 Capricornus on January, 22 2018
High Precision Live Sky Chart
21h 09m 42s
-16° 26’ 21”
 = 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: 106.4°
Max altitude: 22.1°
Azimuth: 253.6°

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 Jan 15 20.98 21h 02m 17s -16° 56’ 39” Capricornus
2018 Jan 16 20.99 21h 03m 20s -16° 52’ 23” Capricornus
2018 Jan 17 21.00 21h 04m 23s -16° 48’ 06” Capricornus
2018 Jan 18 21.01 21h 05m 27s -16° 43’ 48” Capricornus
2018 Jan 19 21.02 21h 06m 30s -16° 39’ 28” Capricornus
2018 Jan 20 21.02 21h 07m 35s -16° 35’ 07” Capricornus
2018 Jan 21 21.03 21h 08m 38s -16° 30’ 43” Capricornus
2018 Jan 22 21.04 21h 09m 42s -16° 26’ 21” Capricornus
2018 Jan 23 21.05 21h 10m 45s -16° 21’ 56” Capricornus
2018 Jan 24 21.06 21h 11m 48s -16° 17’ 29” Capricornus
2018 Jan 25 21.07 21h 12m 51s -16° 13’ 01” Capricornus
2018 Jan 26 21.08 21h 13m 54s -16° 08’ 34” Capricornus
2018 Jan 27 21.08 21h 14m 57s -16° 04’ 04” Capricornus
2018 Jan 28 21.09 21h 16m 00s -15° 59’ 34” Capricornus

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 30 August 2011 00:00 UTC (JD: 2455804.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.53707199
Orbit inclination i 3.23724066°
Perihelion distance q 1.59797245 AU
239,053,277 km
Aphelion distance Q 5.30578975 AU
793,734,850 km
Semi-major axis a 3.45188110 AU
516,394,063 km
Orbital period period 6.4100 years
2,342.5139 days
Date of perihelion transit Tp 2010-Feb-22 13:31:54
2,455,250.0638 JD
Next perihelion transit 2016-Jul-23 01:51
2,457,592.5777 JD
Argument of perihelion peri 41.756703744478°
Longitude of the ascending node node 136.09769199465°
Mean anomaly M 85.206336711892°
Mean motion n 0.15368105°/day
Closest approach to Earth* 2042-Apr-05
Distance of closest approach* 0.65385185 AU
97,814,844 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.