Your guide to the Solar System and the night sky
🌎 Location: Greenwich, United Kingdom [change]

Comet C/2018 W2 (Africano)

Comet C/2018 W2 (Africano) is currently in the constellation of Chamaleon. The current Right Ascension of Comet C/2018 W2 (Africano) is 09h 44m 18s and the Declination is -81° 07’ 43” (topocentric coordinates computed for the selected location: Greenwich, United Kingdom [change]). The current estimated magnitude of Comet C/2018 W2 (Africano) is 19.00 (JPL).

Summary of key facts about Comet C/2018 W2 (Africano) [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]:

09h 44m 18s
-81° 07’ 43”
Chamaleon
19.00

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 C/2018 W2 (Africano) available on TheSkyLive:

Available Resources

Comet C/2018 W2 (Africano) Position and Finder Charts

Below we provide Comet C/2018 W2 (Africano) 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 C/2018 W2 (Africano) in Chamaleon on August, 12 2020
Field of view: 50x30 degrees
View fullscreen
Map showing Comet C/2018 W2 (Africano) in Chamaleon on August, 12 2020
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 C/2018 W2 (Africano) is right now. Click on the image to see a more detailed fullscreen tracker view.

C/2018 W2 (Africano)
RA: 09h 44m 18s
Dec: -81° 07’ 43”
Deep sky finder chart for Comet C/2018 W2 (Africano)
Field of view: 60x40 arcmins
View fullscreen

Also check out Where is Comet C/2018 W2 (Africano)?, a page that provides all the information needed to find Comet C/2018 W2 (Africano) in the sky and additional links to sky charts.

Comet C/2018 W2 (Africano) Distance from Earth

The distance of Comet C/2018 W2 (Africano) from Earth is currently 622,888,055 kilometers, equivalent to 4.163749 Astronomical Units. Light takes 34 minutes and 37.7309 seconds to travel from Comet C/2018 W2 (Africano) and arrive to us.

622,888,055
4.163749
34 minutes and 37.7309 seconds

The following chart shows the distance of Comet C/2018 W2 (Africano) 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 C/2018 W2 (Africano) 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 C/2018 W2 (Africano) from Earth is also available as a real time updated value in the Live Position and Data Tracker.

Closest approach of Comet C/2018 W2 (Africano) to Earth

Between January 2013 and December 2100 the closest approach of Comet C/2018 W2 (Africano) to Earth happens on Fri Sep 27 2019 at a distance of 0.49435298 Astronomical Units, or 73,954,154 kilometers:

Fri Sep 27 2019
73,954,154
0.494353

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

Comet C/2018 W2 (Africano) brightness

The current visual magnitude of Comet C/2018 W2 (Africano) is 19.00.

19.00
-
-

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 C/2018 W2 (Africano), 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 C/2018 W2 (Africano) between January 2013 and December 2100

Comet C/2018 W2 (Africano) rise and set times

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

Comet C/2018 W2 (Africano) is currently not visible from Greenwich, United Kingdom [change]

The rise and set times are defined as the time at which the upper limb of Comet C/2018 W2 (Africano) 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 C/2018 W2 (Africano) Orbital Elements

The following table lists the orbital elements of Comet C/2018 W2 (Africano) at epoch 26 July 2019 00:00 UTC (JD: 2458691.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 1.00075969
Orbit inclination i 116.61577073°
Perihelion distance q 1.45466773 AU
217,615,195 km
Aphelion distance Q n.a.
Semi-major axis a n.a.
Orbital period period n.a.
Date of perihelion transit Tp 2019-Sep-05 17:29:59
2,458,732.2292 JD
Argument of perihelion peri 157.97285296994°
Longitude of the ascending node node 181.84945536549°
Mean anomaly M -0.00047908937975658°
Mean motion n 0.00001176°/day

Visualization of Comet C/2018 W2 (Africano) Orbit

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Comet C/2018 W2 (Africano) with respect of the Sun and the orbits of the major planets. The position of Comet C/2018 W2 (Africano) 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 C/2018 W2 (Africano)
View Comet C/2018 W2 (Africano) in the 3D Solar System Simulator

Comet C/2018 W2 (Africano) 15 Days Ephemeris

The following table lists the ephemerides of Comet C/2018 W2 (Africano) computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Comet C/2018 W2 (Africano) in our Online Planetarium at the chosen date.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2020 Aug 05 08h 44m 30s -81° 27’ 21” 19.00 Chamaleon
2020 Aug 06 08h 52m 36s -81° 25’ 59” 19.00 Chamaleon
2020 Aug 07 09h 00m 37s -81° 24’ 15” 19.00 Chamaleon
2020 Aug 08 09h 08m 30s -81° 22’ 09” 19.00 Chamaleon
2020 Aug 09 09h 16m 14s -81° 19’ 42” 19.00 Chamaleon
2020 Aug 10 09h 23m 52s -81° 16’ 56” 19.00 Chamaleon
2020 Aug 11 09h 31m 21s -81° 13’ 53” 19.00 Chamaleon
2020 Aug 12 09h 38m 40s -81° 10’ 32” 19.00 Chamaleon
2020 Aug 13 09h 45m 52s -81° 06’ 55” 19.00 Chamaleon
2020 Aug 14 09h 52m 55s -81° 03’ 03” 19.00 Chamaleon
2020 Aug 15 09h 59m 49s -80° 58’ 59” 19.00 Chamaleon
2020 Aug 16 10h 06m 34s -80° 54’ 42” 19.00 Chamaleon
2020 Aug 17 10h 13m 10s -80° 50’ 12” 19.00 Chamaleon
2020 Aug 18 10h 19m 37s -80° 45’ 33” 19.00 Chamaleon