Your guide to the Solar System and the night sky
Latest Perseverance Images received 2 hours 45 mins ago for Sol74
🌎  Greenwich, United Kingdom [change]

Comet C/2020 Y2 (ATLAS)

Comet C/2020 Y2 (ATLAS) is currently in the constellation of Corvus. The current Right Ascension of Comet C/2020 Y2 (ATLAS) is 12h 44m 24s and the Declination is -20° 49’ 02” (topocentric coordinates computed for the selected location: Greenwich, United Kingdom [change]). The current estimated magnitude of Comet C/2020 Y2 (ATLAS) is 16.66 (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 44m 24s
-20° 49’ 02”

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 Corvus on May, 06 2021
Field of view: 50x30 degrees
View fullscreen
Map showing Comet C/2020 Y2 (ATLAS) in Corvus on May, 06 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 44m 24s
Dec: -20° 49’ 02”
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 599,224,055 kilometers, equivalent to 4.005565 Astronomical Units. Light takes 33 minutes and 18.7963 seconds to travel from Comet C/2020 Y2 (ATLAS) and arrive to us.

33 minutes and 18.7963 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 2.919791 Astronomical Units, or 436,794,492 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 16.66.


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

Today's Comet C/2020 Y2 (ATLAS) rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 110.8°
Max altitude: 17.7°
Azimuth: 249.2°

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 05 November 2020 00:00 UTC (JD: 2459159.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.99725568
Orbit inclination i 101.27505025°
Perihelion distance q 3.13265147 AU
468,637,990 km
Aphelion distance Q 2,279.87709278 AU
341,064,759,221 km
Semi-major axis a 1,141.50487212 AU
170,766,698,605 km
Orbital period period 38,567.8000 years
14,086,888.6286 days
Date of perihelion transit Tp 2022-Jun-17 17:49:59
2,459,748.2431 JD
Argument of perihelion peri 266.10082646855°
Longitude of the ascending node node 26.506151218726°
Mean anomaly M 359.98495427169°
Mean motion n 0.00002556°/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 Apr 29 12h 53m 36s -20° 53’ 26” 16.71 Corvus
2021 Apr 30 12h 52m 23s -20° 53’ 00” 16.70 Corvus
2021 May 01 12h 51m 10s -20° 52’ 32” 16.69 Corvus
2021 May 02 12h 49m 56s -20° 52’ 01” 16.69 Corvus
2021 May 03 12h 48m 44s -20° 51’ 28” 16.68 Corvus
2021 May 04 12h 47m 33s -20° 50’ 51” 16.67 Corvus
2021 May 05 12h 46m 22s -20° 50’ 12” 16.67 Corvus
2021 May 06 12h 45m 11s -20° 49’ 29” 16.66 Corvus
2021 May 07 12h 44m 00s -20° 48’ 46” 16.66 Corvus
2021 May 08 12h 42m 51s -20° 48’ 01” 16.65 Corvus
2021 May 09 12h 41m 43s -20° 47’ 12” 16.65 Corvus
2021 May 10 12h 40m 35s -20° 46’ 23” 16.64 Corvus
2021 May 11 12h 39m 27s -20° 45’ 33” 16.64 Corvus
2021 May 12 12h 38m 21s -20° 44’ 40” 16.63 Corvus