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Comet C/2018 L2 (ATLAS)

Available Resources

Comet C/2018 L2 (ATLAS) Sky Charts and Coordinates

This is a simplified sky chart, showing where Comet C/2018 L2 (ATLAS) 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 C/2018 L2 (ATLAS) in Virgo on August, 18 2018
High Precision Live Sky Chart
14h 19m 41s
-13° 24’ 14”
15.33
 = 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 C/2018 L2 (ATLAS) Rise and Set Times

Today's Comet C/2018 L2 (ATLAS) rise, transit and set times from Greenwich, United Kingdom [change]. All times are relative to the local timezone Europe/London.

Azimuth: 103.4°
Max altitude: 25.1°
Azimuth: 256.6°

Comet C/2018 L2 (ATLAS) Orbit Diagram

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Comet C/2018 L2 (ATLAS) with respect of the Sun and the orbits of the major planets. The position of Comet C/2018 L2 (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 L2 (ATLAS)
View Comet C/2018 L2 (ATLAS) in the 3D Solar System Simulator

Comet C/2018 L2 (ATLAS) Ephemeris

The following table lists the ephemerides of Comet C/2018 L2 (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 L2 (ATLAS) in our Online Planetarium at the chosen date.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2018 Aug 11 14h 11m 52s -15° 22’ 28” 15.40 Virgo
2018 Aug 12 14h 12m 53s -15° 05’ 31” 15.39 Virgo
2018 Aug 13 14h 13m 55s -14° 48’ 48” 15.38 Virgo
2018 Aug 14 14h 15m 00s -14° 32’ 17” 15.37 Virgo
2018 Aug 15 14h 16m 04s -14° 16’ 00” 15.36 Virgo
2018 Aug 16 14h 17m 09s -13° 59’ 54” 15.35 Virgo
2018 Aug 17 14h 18m 16s -13° 44’ 02” 15.34 Virgo
2018 Aug 18 14h 19m 23s -13° 28’ 21” 15.33 Virgo
2018 Aug 19 14h 20m 31s -13° 12’ 51” 15.32 Virgo
2018 Aug 20 14h 21m 41s -12° 57’ 34” 15.31 Virgo
2018 Aug 21 14h 22m 51s -12° 42’ 28” 15.29 Libra
2018 Aug 22 14h 24m 02s -12° 27’ 33” 15.28 Libra
2018 Aug 23 14h 25m 14s -12° 12’ 47” 15.27 Libra
2018 Aug 24 14h 26m 26s -11° 58’ 14” 15.26 Libra

Distance of Comet C/2018 L2 (ATLAS) from Earth

The following chart shows the distance of Comet C/2018 L2 (ATLAS) 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 C/2018 L2 (ATLAS) is also available as a real time updated value in the Live Position and Data Tracker.

Distance of Comet C/2018 L2 (ATLAS) from Earth between January 2013 and December 2075

Light Curve of Comet C/2018 L2 (ATLAS)

The following chart is the predicted light curve (visual magnitude as a function of time) of Comet C/2018 L2 (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 L2 (ATLAS) between January 2013 and December 2075

Comet C/2018 L2 (ATLAS) Orbital Elements

The following table lists the orbital elements of Comet C/2018 L2 (ATLAS) at epoch 19 June 2018 00:00 UTC (JD: 2458289.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.99360178
Orbit inclination i 67.43264788°
Perihelion distance q 1.71205463 AU
256,119,728 km
Aphelion distance Q 533.45382883 AU
79,803,557,070 km
Semi-major axis a 267.58294173 AU
40,029,838,399 km
Orbital period period 4,377.1900 years
1,598,770.2665 days
Date of perihelion transit Tp 2018-Dec-02 13:31:51
2,458,455.0638 JD
Argument of perihelion peri 56.213755502944°
Longitude of the ascending node node 243.01282092412°
Mean anomaly M 359.96271949386°
Mean motion n 0.00022517°/day
Closest approach to Earth* 2018-Jun-17
Distance of closest approach* 1.95390074 AU
292,299,391 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.