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Comet C/2018 E1 (ATLAS)

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Comet C/2018 E1 (ATLAS) Position

Comet C/2018 E1 (ATLAS) is currently in the constellation of Ursa Major. The current Right Ascension is 11h 58m 38s and the Declination is +31° 57’ 09”.

11h 58m 38s
+31° 57’ 09”

Simplified sky chart showing where Comet C/2018 E1 (ATLAS) is right now in the sky with respect to the brightest stars and constellations (see fuillscreen Online Planetarium)

Map showing Comet C/2018 E1 (ATLAS) in Ursa Major on October, 18 2019
Field of view: 60x30 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]

Hihgher precision deep sky finder chart showing where Comet C/2018 E1 (ATLAS) is right now (view fullscreen)

C/2018 E1 (ATLAS)
RA: 11h 58m 38s
Dec: +31° 57’ 09”
Deep sky finder chart for Comet C/2018 E1 (ATLAS)
Field of view: 60x40 arcmins
View fullscreen

Also check out Where is Comet C/2018 E1 (ATLAS)?, a page that provides all the information needed to find Comet C/2018 E1 (ATLAS) in the sky and additional links to sky charts.

Comet C/2018 E1 (ATLAS) Distance

The distance of Comet C/2018 E1 (ATLAS) from Earth is currently 953,464,298 kilometers, equivalent to 6.373515 Astronomical Units. Light takes 53 minutes and 0.4146 seconds to travel from Comet C/2018 E1 (ATLAS) and arrive to us.

53 minutes and 0.4146 seconds

The following chart shows the distance of Comet C/2018 E1 (ATLAS) 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 E1 (ATLAS) 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 E1 (ATLAS) from Earth is also available as a real time updated value in the Live Position and Data Tracker.

Closest approach of Comet C/2018 E1 (ATLAS) to Earth

Between January 2013 and December 2100 the closest approach of Comet C/2018 E1 (ATLAS) to Earth happens on Tue Mar 6 2018 at a distance of 2.74163319 Astronomical Units, or 410,142,488 kilometers:

Tue Mar 6 2018

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

Comet C/2018 E1 (ATLAS) brightness

The current visual magnitude of Comet C/2018 E1 (ATLAS) is 22.05.


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.

The following chart is the predicted light curve (visual magnitude as a function of time) of Comet C/2018 E1 (ATLAS), 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 E1 (ATLAS) between January 2013 and December 2100

Comet C/2018 E1 (ATLAS) 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 C/2018 E1 (ATLAS) rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 58.0°
Max altitude: 70.5°
Azimuth: 302.0°
Comet C/2018 E1 (ATLAS) is below the horizon from Greenwich, United Kingdom

The rise and set times are defined as the time at which the upper limb of Comet C/2018 E1 (ATLAS) touches the horizon, consideting the effect of the atmospheric refraction. As the atmoshpere conditions cannot be modeled precisely the times reported here should be considered correct with an approximation of few minutes.

Comet C/2018 E1 (ATLAS) Orbital Elements

The following table lists the orbital elements of Comet C/2018 E1 (ATLAS) at epoch 07 April 2018 00:00 UTC (JD: 2458216.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.95035007
Orbit inclination i 72.47952683°
Perihelion distance q 2.70544153 AU
404,728,292 km
Aphelion distance Q 106.27523326 AU
15,898,548,635 km
Semi-major axis a 54.49033739 AU
8,151,638,464 km
Orbital period period 402.2400 years
146,918.9014 days
Date of perihelion transit Tp 2018-Apr-17 07:43:47
2,458,225.8221 JD
Next perihelion transit 2420-Jul-17 05:21
2,605,144.7235 JD
Argument of perihelion peri 299.47167251795°
Longitude of the ascending node node 146.84094309771°
Mean anomaly M 359.97715781114°
Mean motion n 0.00245033°/day

Visualization of Comet C/2018 E1 (ATLAS) Orbit

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Comet C/2018 E1 (ATLAS) with respect of the Sun and the orbits of the major planets. The position of Comet C/2018 E1 (ATLAS) 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 E1 (ATLAS)
View Comet C/2018 E1 (ATLAS) in the 3D Solar System Simulator

Comet C/2018 E1 (ATLAS) 15 Days Ephemeris

The following table lists the ephemerides of Comet C/2018 E1 (ATLAS) 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 E1 (ATLAS) in our Online Planetarium at the chosen date.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2019 Oct 11 11h 52m 50s +31° 45’ 16” 22.02 Ursa Major
2019 Oct 12 11h 53m 39s +31° 46’ 45” 22.02 Ursa Major
2019 Oct 13 11h 54m 29s +31° 48’ 17” 22.03 Ursa Major
2019 Oct 14 11h 55m 19s +31° 49’ 54” 22.03 Ursa Major
2019 Oct 15 11h 56m 09s +31° 51’ 35” 22.04 Ursa Major
2019 Oct 16 11h 56m 58s +31° 53’ 21” 22.04 Ursa Major
2019 Oct 17 11h 57m 47s +31° 55’ 13” 22.04 Ursa Major
2019 Oct 18 11h 58m 37s +31° 57’ 09” 22.05 Ursa Major
2019 Oct 19 11h 59m 26s +31° 59’ 09” 22.05 Ursa Major
2019 Oct 20 12h 00m 15s +32° 01’ 14” 22.06 Ursa Major
2019 Oct 21 12h 01m 03s +32° 03’ 25” 22.06 Ursa Major
2019 Oct 22 12h 01m 51s +32° 05’ 40” 22.06 Ursa Major
2019 Oct 23 12h 02m 39s +32° 08’ 02” 22.07 Ursa Major
2019 Oct 24 12h 03m 26s +32° 10’ 27” 22.07 Ursa Major