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🌎  Greenwich, United Kingdom [change]

Comet C/2020 Y2 (ATLAS)

Comet C/2020 Y2 (ATLAS) is currently in the constellation of Centaurus. The current Right Ascension of Comet C/2020 Y2 (ATLAS) is 12h 46m 43s and the Declination is -41° 48’ 16” (topocentric coordinates computed for the selected location: Greenwich, United Kingdom [change]). The current estimated magnitude of Comet C/2020 Y2 (ATLAS) is 15.14 (JPL).

Summary of key facts about Comet C/2020 Y2 (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]:

12h 46m 43s
-41° 48’ 16”

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/2020 Y2 (ATLAS) available on TheSkyLive:

Available Resources

Comet C/2020 Y2 (ATLAS) Position and Finder Charts

Below we provide Comet C/2020 Y2 (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/2020 Y2 (ATLAS) in Centaurus on November, 27 2021
Field of view: 50x30 degrees
View fullscreen
Map showing Comet C/2020 Y2 (ATLAS) in Centaurus on November, 27 2021
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/2020 Y2 (ATLAS) is right now. Click on the image to see a more detailed fullscreen tracker view.

C/2020 Y2 (ATLAS)
RA: 12h 46m 43s
Dec: -41° 48’ 16”
Deep sky finder chart for Comet C/2020 Y2 (ATLAS)
Field of view: 60x40 arcmins
View fullscreen

Also check out Where is Comet C/2020 Y2 (ATLAS)?, a page that provides all the information needed to find Comet C/2020 Y2 (ATLAS) in the sky and additional links to sky charts.

Comet C/2020 Y2 (ATLAS) Distance from Earth

The distance of Comet C/2020 Y2 (ATLAS) from Earth is currently 638,296,934 kilometers, equivalent to 4.266751 Astronomical Units. Light takes 35 minutes and 29.1294 seconds to travel from Comet C/2020 Y2 (ATLAS) and arrive to us.

35 minutes and 29.1294 seconds

The following chart shows the distance of Comet C/2020 Y2 (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/2020 Y2 (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/2020 Y2 (ATLAS) from Earth is also available as a real time updated value in the Live Position and Data Tracker.

Closest approach of Comet C/2020 Y2 (ATLAS) to Earth

Between January 2013 and December 2100, the closest approach of Comet C/2020 Y2 (ATLAS) to Earth happens on Sun Mar 20 2022 at a distance of 2.919536 Astronomical Units, or 436,756,337 kilometers:

Sun Mar 20 2022

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

Comet C/2020 Y2 (ATLAS) brightness

The current visual magnitude of Comet C/2020 Y2 (ATLAS) is 15.14.


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/2020 Y2 (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/2020 Y2 (ATLAS) between January 2013 and December 2100

Comet C/2020 Y2 (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/2020 Y2 (ATLAS) is currently not visible from Greenwich, United Kingdom [change]

The rise and set times are defined as the time at which the upper limb of Comet C/2020 Y2 (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/2020 Y2 (ATLAS) Orbital Elements

The following table lists the orbital elements of Comet C/2020 Y2 (ATLAS) at epoch 15 March 2021 00:00 UTC (JD: 2459289.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.99745380
Orbit inclination i 101.28417219°
Perihelion distance q 3.13239035 AU
468,598,927 km
Aphelion distance Q 2,457.30693321 AU
367,607,885,602 km
Semi-major axis a 1,230.21966178 AU
184,038,242,265 km
Orbital period period 5,756,554,850.7742 years
15,760,588.2294 days
Date of perihelion transit Tp 2022-Jun-17 15:48:01
2,459,748.1584 JD
Argument of perihelion peri 266.09889437334°
Longitude of the ascending node node 26.506176349743°
Mean anomaly M 359.98952342362°
Mean motion n 0.00002284°/day

Visualization of Comet C/2020 Y2 (ATLAS) Orbit

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Comet C/2020 Y2 (ATLAS) with respect of the Sun and the orbits of the major planets. The position of Comet C/2020 Y2 (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/2020 Y2 (ATLAS)
View Comet C/2020 Y2 (ATLAS) in the 3D Solar System Simulator

Comet C/2020 Y2 (ATLAS) 15 Days Ephemeris

The following table lists the ephemerides of Comet C/2020 Y2 (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/2020 Y2 (ATLAS) in our Online Planetarium at the chosen date.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2021 Nov 20 12h 44m 12s -39° 39’ 52” 15.25 Centaurus
2021 Nov 21 12h 44m 32s -39° 55’ 44” 15.24 Centaurus
2021 Nov 22 12h 44m 53s -40° 11’ 44” 15.22 Centaurus
2021 Nov 23 12h 45m 14s -40° 27’ 51” 15.21 Centaurus
2021 Nov 24 12h 45m 33s -40° 44’ 08” 15.20 Centaurus
2021 Nov 25 12h 45m 52s -41° 00’ 33” 15.18 Centaurus
2021 Nov 26 12h 46m 10s -41° 17’ 08” 15.17 Centaurus
2021 Nov 27 12h 46m 28s -41° 33’ 50” 15.15 Centaurus
2021 Nov 28 12h 46m 45s -41° 50’ 40” 15.14 Centaurus
2021 Nov 29 12h 47m 03s -42° 07’ 41” 15.12 Centaurus
2021 Nov 30 12h 47m 18s -42° 24’ 50” 15.11 Centaurus
2021 Dec 01 12h 47m 34s -42° 42’ 06” 15.09 Centaurus
2021 Dec 02 12h 47m 48s -42° 59’ 34” 15.08 Centaurus
2021 Dec 03 12h 48m 02s -43° 17’ 08” 15.06 Centaurus