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🌎  Greenwich, United Kingdom [change]

Comet 81P/Wild 2

Comet 81P/Wild 2 is currently in the constellation of Cancer. The current Right Ascension of Comet 81P/Wild 2 is 08h 25m 49s and the Declination is +18° 23’ 41” (topocentric coordinates computed for the selected location: Greenwich, United Kingdom [change]). The current estimated magnitude of Comet 81P/Wild 2 is 15.28 (JPL).

Summary of key facts about Comet 81P/Wild 2 [tip: you can also create a Quick Access page for this data if you access it frequently and would like to have a simpler view]:

08h 25m 49s
+18° 23’ 41”
Cancer
15.28
  • 81P/Wild 2 is above the horizon from Greenwich, United Kingdom [change].
  • It is visible looking in the West-South-West direction at an altitude of 45° above the horizon.
  • Given its current magnitude, 81P/Wild 2 is visible with the help of a telescope havng an aperture of 20 inches (500mm) or more.
  • See also 81P/Wild 2 rise and set times.
  • Go to interactive sky chart

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.

Additional information about Comet 81P/Wild 2 available on TheSkyLive:

Available Resources

Comet 81P/Wild 2 Position and Finder Charts

Below we provide Comet 81P/Wild 2 finder charts showing where the object is right now in the sky with respect to the brightest stars. The first finder chart has a field of view of 50 degrees, while the second one has a field of view of 10 degrees. Click on each finder chart to access a full screen interactive Online Planetarium.

Map showing Comet 81P/Wild 2 in Cancer on August, 16 2022
Field of view: 50x30 degrees
View fullscreen
Map showing Comet 81P/Wild 2 in Cancer on August, 16 2022
Field of view: 10x6 degrees
View fullscreen
 = visible to the naked eye
 = binocular, brighter than 10th magnitude
= current altitude ≥ 30°   = current altitude < 30°   = below the horizon
Location: Greenwich, United Kingdom [change]

Higher precision deep sky finder chart, 60 arcmin wide, showing where Comet 81P/Wild 2 is right now. Click on the image to see a more detailed fullscreen tracker view.

81P/Wild 2
RA: 08h 25m 49s
Dec: +18° 23’ 41”
Deep sky finder chart for Comet 81P/Wild 2
Field of view: 60x40 arcmins
View fullscreen

Also check out Where is Comet 81P/Wild 2?, a page that provides all the information needed to find Comet 81P/Wild 2 in the sky and additional links to sky charts.

Comet 81P/Wild 2 Distance from Earth

The distance of Comet 81P/Wild 2 from Earth is currently 434,647,873 kilometers, equivalent to 2.905442 Astronomical Units. Light takes 24 minutes and 9.8292 seconds to travel from Comet 81P/Wild 2 and arrive to us.

434,647,873
2.905442
24 minutes and 9.8292 seconds

The following chart shows the distance of Comet 81P/Wild 2 from Earth as a function of time. In the chart the distance data is measured in Astronomical Units and sampled with an interval of 1 day.

Distance of Comet 81P/Wild 2 from Earth between January 2013 and December 2100

The value of the reported distance might be somewhat inaccurate around the times of closest approach for objects passing extremely close to Earth. The value of the distance of 81P/Wild 2 from Earth is also available as a real time updated value in the Live Position and Data Tracker.

Closest approach of Comet 81P/Wild 2 to Earth

Between January 2013 and December 2100, the closest approach of Comet 81P/Wild 2 to Earth happens on Sat Apr 5 2042 at a distance of 0.654986 Astronomical Units, or 97,984,555 kilometers:

Sat Apr 5 2042
97,984,555
0.654986

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

Comet 81P/Wild 2 brightness

The current visual magnitude of Comet 81P/Wild 2 is 15.28.

15.28
-
-

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 behavior 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.

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 rise and set times

Location: Greenwich, United Kingdom [change]
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

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

Azimuth: 71.6°
Max altitude: 56.9°
Azimuth: 288.4°

The rise and set times are defined as the time at which the upper limb of Comet 81P/Wild 2 touches the horizon, considering the effect of the atmospheric refraction. As the atmospheric conditions cannot be modeled precisely the times reported here should be considered correct with an approximation of few minutes.

Comet 81P/Wild 2 Orbital Elements

The following table lists the orbital elements of Comet 81P/Wild 2 at epoch 26 June 2012 00:00 UTC (JD: 2456105.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.53711308
Orbit inclination i 3.23765238°
Perihelion distance q 1.59737683 AU
238,964,173 km
Aphelion distance Q 5.30442473 AU
793,530,647 km
Semi-major axis a 3.45090078 AU
516,247,410 km
Orbital period period 6.4107 years
2,341.5160 days
Date of perihelion transit Tp 2010-Feb-22 10:32:05
2,455,249.9390 JD
Next perihelion transit 2016-Jul-21 22:55
2,457,591.4550 JD
Argument of perihelion peri 41.723535065757°
Longitude of the ascending node node 136.09886198566°
Mean anomaly M 131.53955475631°
Mean motion n 0.15374654°/day

Visualization of Comet 81P/Wild 2 Orbit

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 15 Days 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
2022 Aug 09 08h 07m 22s +19° 17’ 30” 15.46 Cancer
2022 Aug 10 08h 09m 47s +19° 10’ 50” 15.43 Cancer
2022 Aug 11 08h 12m 14s +19° 04’ 04” 15.41 Cancer
2022 Aug 12 08h 14m 39s +18° 57’ 07” 15.39 Cancer
2022 Aug 13 08h 17m 07s +18° 50’ 03” 15.36 Cancer
2022 Aug 14 08h 19m 33s +18° 42’ 50” 15.34 Cancer
2022 Aug 15 08h 22m 00s +18° 35’ 27” 15.32 Cancer
2022 Aug 16 08h 24m 28s +18° 27’ 56” 15.29 Cancer
2022 Aug 17 08h 26m 56s +18° 20’ 17” 15.27 Cancer
2022 Aug 18 08h 29m 24s +18° 12’ 29” 15.25 Cancer
2022 Aug 19 08h 31m 51s +18° 04’ 32” 15.22 Cancer
2022 Aug 20 08h 34m 20s +17° 56’ 26” 15.20 Cancer
2022 Aug 21 08h 36m 50s +17° 48’ 12” 15.18 Cancer
2022 Aug 22 08h 39m 19s +17° 39’ 50” 15.15 Cancer