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🌎 Location: Greenwich, United Kingdom [change]

Comet C/2019 L3 (ATLAS)

Comet C/2019 L3 (ATLAS) is currently in the constellation of Cassiopeia. The current Right Ascension of Comet C/2019 L3 (ATLAS) is 00h 05m 40s and the Declination is +65° 00’ 09” (topocentric coordinates computed for the selected location: Greenwich, United Kingdom [change]). The current estimated magnitude of Comet C/2019 L3 (ATLAS) is 15.46 (JPL) while the latest observed magnitude is 14.5 (COBS).

Summary of key facts about Comet C/2019 L3 (ATLAS) [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]:

00h 05m 40s
+65° 00’ 09”
Cassiopeia
14.5
15.46
  • C/2019 L3 (ATLAS) is above the horizon from Greenwich, United Kingdom [change].
  • It is visible looking in the North direction at an altitude of 27° above the horizon.
  • Given its current magnitude, C/2019 L3 (ATLAS) is visible with the help of a telescope havng an aperture of 20 inches (500mm) or more.
  • See also C/2019 L3 (ATLAS) 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 C/2019 L3 (ATLAS) available on TheSkyLive:

Available Resources

Comet C/2019 L3 (ATLAS) Position and Finder Charts

Below we provide Comet C/2019 L3 (ATLAS) 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/2019 L3 (ATLAS) in Cassiopeia on October, 27 2020
Field of view: 50x30 degrees
View fullscreen
Map showing Comet C/2019 L3 (ATLAS) in Cassiopeia on October, 27 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/2019 L3 (ATLAS) is right now. Click on the image to see a more detailed fullscreen tracker view.

C/2019 L3 (ATLAS)
RA: 00h 05m 40s
Dec: +65° 00’ 09”
Deep sky finder chart for Comet C/2019 L3 (ATLAS)
Field of view: 60x40 arcmins
View fullscreen

Also check out Where is Comet C/2019 L3 (ATLAS)?, a page that provides all the information needed to find Comet C/2019 L3 (ATLAS) in the sky and additional links to sky charts.

Comet C/2019 L3 (ATLAS) Distance from Earth

The distance of Comet C/2019 L3 (ATLAS) from Earth is currently 691,440,670 kilometers, equivalent to 4.621995 Astronomical Units. Light takes 38 minutes and 26.3978 seconds to travel from Comet C/2019 L3 (ATLAS) and arrive to us.

691,440,670
4.621995
38 minutes and 26.3978 seconds

The following chart shows the distance of Comet C/2019 L3 (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/2019 L3 (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/2019 L3 (ATLAS) from Earth is also available as a real time updated value in the Live Position and Data Tracker.

Closest approach of Comet C/2019 L3 (ATLAS) to Earth

Between January 2013 and December 2100, the closest approach of Comet C/2019 L3 (ATLAS) to Earth happens on Fri Jan 7 2022 at a distance of 2.580859 Astronomical Units, or 386,091,063 kilometers:

Fri Jan 7 2022
386,091,063
2.580859

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

Comet C/2019 L3 (ATLAS) brightness

The current visual magnitude of Comet C/2019 L3 (ATLAS) is 15.46.

15.46
14.5
1.0'

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/2019 L3 (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/2019 L3 (ATLAS) between January 2013 and December 2100

Comet C/2019 L3 (ATLAS) rise and set times

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

Comet C/2019 L3 (ATLAS) is circumpolar and transits at 21:38 UTC (altitude: 76.5°)

The rise and set times are defined as the time at which the upper limb of Comet C/2019 L3 (ATLAS) 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/2019 L3 (ATLAS) Orbital Elements

The following table lists the orbital elements of Comet C/2019 L3 (ATLAS) at epoch 24 December 2019 00:00 UTC (JD: 2458842.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 1.00017797
Orbit inclination i 48.36651302°
Perihelion distance q 3.55267083 AU
531,471,992 km
Aphelion distance Q n.a.
Semi-major axis a n.a.
Orbital period period n.a.
Date of perihelion transit Tp 2022-Jan-10 00:08:58
2,459,589.5062 JD
Argument of perihelion peri 171.67940600298°
Longitude of the ascending node node 290.78627438611°
Mean anomaly M -0.00026105349984888°
Mean motion n 0.00000035°/day

Visualization of Comet C/2019 L3 (ATLAS) Orbit

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Comet C/2019 L3 (ATLAS) with respect of the Sun and the orbits of the major planets. The position of Comet C/2019 L3 (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/2019 L3 (ATLAS)
View Comet C/2019 L3 (ATLAS) in the 3D Solar System Simulator

Comet C/2019 L3 (ATLAS) 15 Days Ephemeris

The following table lists the ephemerides of Comet C/2019 L3 (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/2019 L3 (ATLAS) in our Online Planetarium at the chosen date.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2020 Oct 20 00h 11m 33s +65° 28’ 08” 15.52 Cassiopeia
2020 Oct 21 00h 10m 42s +65° 24’ 57” 15.51 Cassiopeia
2020 Oct 22 00h 09m 52s +65° 21’ 35” 15.50 Cassiopeia
2020 Oct 23 00h 09m 03s +65° 18’ 02” 15.49 Cassiopeia
2020 Oct 24 00h 08m 16s +65° 14’ 18” 15.49 Cassiopeia
2020 Oct 25 00h 07m 28s +65° 10’ 23” 15.48 Cassiopeia
2020 Oct 26 00h 06m 42s +65° 06’ 16” 15.47 Cassiopeia
2020 Oct 27 00h 05m 57s +65° 02’ 00” 15.46 Cassiopeia
2020 Oct 28 00h 05m 14s +64° 57’ 33” 15.46 Cassiopeia
2020 Oct 29 00h 04m 32s +64° 52’ 55” 15.45 Cassiopeia
2020 Oct 30 00h 03m 51s +64° 48’ 07” 15.44 Cassiopeia
2020 Oct 31 00h 03m 11s +64° 43’ 09” 15.43 Cassiopeia
2020 Nov 01 00h 02m 31s +64° 38’ 03” 15.43 Cassiopeia
2020 Nov 02 00h 01m 54s +64° 32’ 45” 15.42 Cassiopeia