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public LocationGreenwich, UK
Sunrise: 5:14 
Transit: 13:06 
Sunset: 20:58
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Comets » 

Comet C/2019 L3 (ATLAS)

Below the horizon.  Never rises today
Alt: -12.34°   Az: 156.33°   Direction: South-South-East

Comet C/2019 L3 (ATLAS) is in the constellation of Vela, at a distance of 1,277,434,293.0 kilometers from Earth. The current Right Ascension is 11h 04m 03s and the Declination is -46° 24’ 59” (apparent coordinates). The predicted magnitude of Comet C/2019 L3 (ATLAS) is 17.64 (data provided by JPL Horizons).

Finder chart of C/2019 L3 (ATLAS) in Vela on July,24 2024
Map showing Comet C/2019 L3 (ATLAS) in Vela on July, 24 2024. Field of view: 50x30 degrees
View interactive star map

Celestial Coordinates


11h 04m 03s
-46° 24’ 59”
21h 41m 17s
08h 45m 21s


11h 02m 56s
-46° 17’ 02”

Additional Information


The observed values of Magnitude, Coma Diameter and Tail Length are derived from the most recent observation recorded at the Comet Observers Database. The value of Predicted Magnitude comes from the JPL Horizons ephemerides service and, in the case of comets, might be inaccurate given the highly dynamic and unpredictable behavior of these objects. When available, please refer to the Observed Magnitude value and consider the Predicted 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.

Rise and Set Times

Today's rise, transit and set times of Comet C/2019 L3 (ATLAS) from Greenwich, UK (all times relative to the local timezone Europe/London):

Today Comet C/2019 L3 (ATLAS) is not visible from Greenwich, UK

  • C/2019 L3 (ATLAS) is below the horizon from Greenwich, UK.
  • Given its current magnitude, C/2019 L3 (ATLAS) is visible only through long exposure photography.
  • 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.

Finder Charts

Finder chart of C/2019 L3 (ATLAS)
Sky map showing Comet C/2019 L3 (ATLAS) in Vela on July, 24 2024. Field of view: 10x6 degrees. View in interactive sky chart

High 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: 11h 02m 56s
Dec: -46° 17’ 02”
Deep sky finder chart for Comet C/2019 L3 (ATLAS). Field of view: 60x40 arcmins. View in deep sky object tracker

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.

Distance from Earth

The distance of Comet C/2019 L3 (ATLAS) from Earth is currently 1,277,434,293.0 kilometers, equivalent to 8.5391208245 Astronomical Units. Light takes 1h 11m 1.062s to travel from Comet C/2019 L3 (ATLAS) and arrive to us.

1h 11m 1.062s

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.

Chart of the distance of Comet C/2019 L3 (ATLAS) from Earth in Astronomical Units (au)

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

Between 1 January 2013 and 30 December 2100, the closest approach of Comet C/2019 L3 (ATLAS) to Earth happens on Fri Jan 7 2022 at a distance of 2.580890 Astronomical Units, or 386,095,664 kilometers:

Fri Jan 7 2022

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

Light Curve

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.

Chart of the magnitude of Comet C/2019 L3 (ATLAS) as a function of time

Orbital Elements

The following table lists the orbital elements of Comet C/2019 L3 (ATLAS) at epoch 01 July 2021 00:00 UTC (JD: 2459397.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 1.00120811
Orbit inclination i 48.36502109°
Perihelion distance q 3.55441777 AU
531,733,331 km
Aphelion distance Q n.a.
Semi-major axis a n.a.
Orbital period period n.a.
Date of perihelion transit Tp 2022-Jan-09 16:00:54
2,459,589.1673 JD
Argument of perihelion peri 171.6205663631°
Longitude of the ascending node node 290.78767042533°
Mean anomaly M -0.0011837511762188°
Mean motion n 0.00000618°/day

Orbit Visualization

Orbit Diagram of Comet C/2019 L3 (ATLAS)
View Comet C/2019 L3 (ATLAS) in the 3D Solar System Simulator

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. Apparent celestial coordinates are provided.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2024 Jul 17 10h 59m 28s -46° 32’ 53” 17.58 Vela
2024 Jul 18 11h 00m 04s -46° 31’ 36” 17.59 Vela
2024 Jul 19 11h 00m 40s -46° 30’ 22” 17.59 Vela
2024 Jul 20 11h 01m 16s -46° 29’ 13” 17.60 Vela
2024 Jul 21 11h 01m 52s -46° 28’ 10” 17.61 Vela
2024 Jul 22 11h 02m 29s -46° 27’ 10” 17.61 Vela
2024 Jul 23 11h 03m 07s -46° 26’ 14” 17.62 Vela
2024 Jul 24 11h 03m 44s -46° 25’ 24” 17.63 Vela
2024 Jul 25 11h 04m 22s -46° 24’ 38” 17.64 Vela
2024 Jul 26 11h 05m 00s -46° 23’ 56” 17.64 Vela
2024 Jul 27 11h 05m 38s -46° 23’ 19” 17.65 Vela
2024 Jul 28 11h 06m 16s -46° 22’ 46” 17.66 Vela
2024 Jul 29 11h 06m 54s -46° 22’ 18” 17.66 Centaurus
2024 Jul 30 11h 07m 33s -46° 21’ 55” 17.67 Centaurus

Additional Resources