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

Comet C/2019 T4 (ATLAS)

Available Resources

Comet C/2019 T4 (ATLAS) Position

Comet C/2019 T4 (ATLAS) is currently in the constellation of Canis Majoris. The current Right Ascension is 06h 12m 58s and the Declination is -29° 44’ 55”.

06h 12m 58s
-29° 44’ 55”

Simplified sky chart showing where Comet C/2019 T4 (ATLAS) is right now in the sky with respect to the brightest stars and constellations (see full screen Online Planetarium)

Map showing Comet C/2019 T4 (ATLAS) in Canis Majoris on April, 04 2020
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]

Higher precision deep sky finder chart showing where Comet C/2019 T4 (ATLAS) is right now (view fullscreen)

C/2019 T4 (ATLAS)
RA: 06h 12m 58s
Dec: -29° 44’ 55”
Deep sky finder chart for Comet C/2019 T4 (ATLAS)
Field of view: 60x40 arcmins
View fullscreen

Also check out Where is Comet C/2019 T4 (ATLAS)?, a page that provides all the information needed to find Comet C/2019 T4 (ATLAS) in the sky and additional links to sky charts.

Comet C/2019 T4 (ATLAS) Distance

The distance of Comet C/2019 T4 (ATLAS) from Earth is currently 1,131,216,745 kilometers, equivalent to 7.561717 Astronomical Units. Light takes 1 hours, 2 minutes and 53.3329 seconds to travel from Comet C/2019 T4 (ATLAS) and arrive to us.

1 hours, 2 minutes and 53.3329 seconds

The following chart shows the distance of Comet C/2019 T4 (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 T4 (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 T4 (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 T4 (ATLAS) to Earth

Between January 2013 and December 2100 the closest approach of Comet C/2019 T4 (ATLAS) to Earth happens on Tue Apr 5 2022 at a distance of 3.33127868 Astronomical Units, or 498,352,198 kilometers:

Tue Apr 5 2022

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

Comet C/2019 T4 (ATLAS) brightness

The current visual magnitude of Comet C/2019 T4 (ATLAS) is 18.02.


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 T4 (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 T4 (ATLAS) between January 2013 and December 2100

Comet C/2019 T4 (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/2019 T4 (ATLAS) rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 119.8°
Max altitude: 8.8°
Azimuth: 240.2°
Comet C/2019 T4 (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/2019 T4 (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 T4 (ATLAS) Orbital Elements

The following table lists the orbital elements of Comet C/2019 T4 (ATLAS) at epoch 01 January 2020 00:00 UTC (JD: 2458850.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.99602486
Orbit inclination i 53.61672573°
Perihelion distance q 4.24160805 AU
634,535,534 km
Aphelion distance Q 2,129.82786457 AU
318,617,714,137 km
Semi-major axis a 1,067.03473631 AU
159,626,124,835 km
Orbital period period 34,855.8800 years
12,731,109.7905 days
Date of perihelion transit Tp 2022-Jun-09 06:28:11
2,459,739.7696 JD
Argument of perihelion peri 351.20219138282°
Longitude of the ascending node node 199.98495838261°
Mean anomaly M 359.97485395596°
Mean motion n 0.00002828°/day

Visualization of Comet C/2019 T4 (ATLAS) Orbit

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Comet C/2019 T4 (ATLAS) with respect of the Sun and the orbits of the major planets. The position of Comet C/2019 T4 (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 T4 (ATLAS)
View Comet C/2019 T4 (ATLAS) in the 3D Solar System Simulator

Comet C/2019 T4 (ATLAS) 15 Days Ephemeris

The following table lists the ephemerides of Comet C/2019 T4 (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 T4 (ATLAS) in our Online Planetarium at the chosen date.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2020 Mar 28 06h 10m 46s -30° 28’ 33” 18.03 Columba
2020 Mar 29 06h 11m 00s -30° 22’ 59” 18.03 Columba
2020 Mar 30 06h 11m 17s -30° 17’ 25” 18.03 Columba
2020 Mar 31 06h 11m 32s -30° 11’ 52” 18.03 Columba
2020 Apr 01 06h 11m 48s -30° 06’ 20” 18.03 Canis Majoris
2020 Apr 02 06h 12m 06s -30° 00’ 48” 18.03 Canis Majoris
2020 Apr 03 06h 12m 24s -29° 55’ 19” 18.02 Canis Majoris
2020 Apr 04 06h 12m 42s -29° 49’ 51” 18.02 Canis Majoris
2020 Apr 05 06h 13m 00s -29° 44’ 26” 18.02 Canis Majoris
2020 Apr 06 06h 13m 19s -29° 39’ 01” 18.02 Canis Majoris
2020 Apr 07 06h 13m 39s -29° 33’ 38” 18.02 Canis Majoris
2020 Apr 08 06h 13m 59s -29° 28’ 18” 18.02 Canis Majoris
2020 Apr 09 06h 14m 21s -29° 22’ 58” 18.01 Canis Majoris
2020 Apr 10 06h 14m 42s -29° 17’ 40” 18.01 Canis Majoris