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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 February, 23 2019
High Precision Live Sky Chart
 = visible to the naked eye
 = binocular, brighter than 10th magnitude
= current altitude ≥ 30°   = current altitude < 30°   = below the horizon
Location: Greenwich, United Kingdom [change]
23h 01m 38s
-07° 40’ 39”
-
22.72
-

The Observed Magnitude and Coma Diameter values are derived from the Comet Observers Database by averaging the values reported in recent observations (more recent than 4 days), when available. The Estimated Magnitude comes from the JPL Horizons ephemerides service and might be inaccurate given the highly dynamic and unpredictable behvior of comets. When available please refer to the Observed Magnitude value and consider the Estimated 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.

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 Europe/London timezone.

Azimuth: 97.7°
Max altitude: 30.9°
Azimuth: 262.4°

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 Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2019 Feb 16 22h 56m 00s -08° 14’ 39” 22.70 Aquarius
2019 Feb 17 22h 56m 47s -08° 09’ 59” 22.70 Aquarius
2019 Feb 18 22h 57m 33s -08° 05’ 18” 22.70 Aquarius
2019 Feb 19 22h 58m 19s -08° 00’ 37” 22.71 Aquarius
2019 Feb 20 22h 59m 07s -07° 55’ 55” 22.71 Aquarius
2019 Feb 21 22h 59m 53s -07° 51’ 14” 22.71 Aquarius
2019 Feb 22 23h 00m 39s -07° 46’ 31” 22.72 Aquarius
2019 Feb 23 23h 01m 27s -07° 41’ 48” 22.72 Aquarius
2019 Feb 24 23h 02m 13s -07° 37’ 05” 22.72 Aquarius
2019 Feb 25 23h 03m 01s -07° 32’ 21” 22.73 Aquarius
2019 Feb 26 23h 03m 47s -07° 27’ 38” 22.73 Aquarius
2019 Feb 27 23h 04m 35s -07° 22’ 53” 22.73 Aquarius
2019 Feb 28 23h 05m 21s -07° 18’ 09” 22.73 Aquarius
2019 Mar 01 23h 06m 07s -07° 13’ 23” 22.74 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 2100

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 2100

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 2100-Dec-31, with a sampling interval of 1 day.