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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 4:49  
clear_day Transit: 12:56  
SunsetSet: 21:04 south
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Comets » 

Comet C/2020 R7 (ATLAS)

Comet C/2020 R7 (ATLAS) is currently in the constellation of Hercules.

The current Right Ascension of Comet C/2020 R7 (ATLAS) is 16h 40m 36s and the Declination is +31° 26’ 40” (topocentric coordinates computed for the selected location: Greenwich, United Kingdom edit_location_alt). The current estimated magnitude of Comet C/2020 R7 (ATLAS) is 16.18 (JPL) while the latest observed magnitude is 16.0 (COBS).

16h 40m 36s
+31° 26’ 40”

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.

Today's rise, transit and set times of Comet C/2020 R7 (ATLAS) from Greenwich, United Kingdom edit_location_alt (all times relative to the local timezone Europe/London):

Azimuth: 58.6°
Max altitude: 69.8°
Azimuth: 301.4°
  • C/2020 R7 (ATLAS) is above the horizon from Greenwich, United Kingdom edit_location_alt.
  • Right now it is placed in the North-East direction at an altitude of 5° above the horizon.
  • Given its current magnitude, C/2020 R7 (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.

Available Resources

Comet C/2020 R7 (ATLAS) Position and Finder Charts

Below we provide Comet C/2020 R7 (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.

Finder chart of C/2020 R7 (ATLAS) in Hercules on June,01 2023
Map showing Comet C/2020 R7 (ATLAS) in Hercules on June, 01 2023
Field of view: 50x30 degrees
View fullscreen
Finder chart of C/2020 R7 (ATLAS)
Map showing Comet C/2020 R7 (ATLAS) in Hercules on June, 01 2023
Field of view: 10x6 degrees
View fullscreen

Higher precision deep sky finder chart, 60 arcmin wide, showing where Comet C/2020 R7 (ATLAS) is right now. Click on the image to see a more detailed fullscreen tracker view.

C/2020 R7 (ATLAS)
RA: 16h 40m 36s
Dec: +31° 26’ 40”
Deep sky finder chart for Comet C/2020 R7 (ATLAS)
Field of view: 60x40 arcmins
View fullscreen

Also check out Where is Comet C/2020 R7 (ATLAS)?, a page that provides all the information needed to find Comet C/2020 R7 (ATLAS) in the sky and additional links to sky charts.

Comet C/2020 R7 (ATLAS) Distance from Earth

The distance of Comet C/2020 R7 (ATLAS) from Earth is currently 477,678,252 kilometers, equivalent to 3.193082 Astronomical Units. Light takes 26 minutes and 33.3631 seconds to travel from Comet C/2020 R7 (ATLAS) and arrive to us.

26 minutes and 33.3631 seconds

The following chart shows the distance of Comet C/2020 R7 (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/2020 R7 (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/2020 R7 (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 R7 (ATLAS) to Earth

Between 1 January 2000 and 31 December 2099, the closest approach of Comet C/2020 R7 (ATLAS) to Earth happens on Fri Jul 15 2022 at a distance of 2.181064 Astronomical Units, or 326,282,504 kilometers:

Fri Jul 15 2022

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

Comet C/2020 R7 (ATLAS) Brightness and Light Curve

The following chart is the predicted light curve (visual magnitude as a function of time) of Comet C/2020 R7 (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/2020 R7 (ATLAS) as a function of time

Comet C/2020 R7 (ATLAS) Orbital Elements

The following table lists the orbital elements of Comet C/2020 R7 (ATLAS) at epoch 15 February 2022 00:00 UTC (JD: 2459626.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 1.00001380
Orbit inclination i 114.89152319°
Perihelion distance q 2.95613077 AU
442,230,870 km
Aphelion distance Q n.a.
Semi-major axis a n.a.
Orbital period period n.a.
Date of perihelion transit Tp 2022-Sep-16 04:52:09
2,459,838.7029 JD
Argument of perihelion peri 347.82553830029°
Longitude of the ascending node node 268.28026251837°
Mean anomaly M -2.1102646001987E-6°
Mean motion n 0.00000001°/day

Visualization of Comet C/2020 R7 (ATLAS) Orbit

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Comet C/2020 R7 (ATLAS) with respect of the Sun and the orbits of the major planets. The position of Comet C/2020 R7 (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 R7 (ATLAS)
View Comet C/2020 R7 (ATLAS) in the 3D Solar System Simulator

Comet C/2020 R7 (ATLAS) 15 Days Ephemeris

The following table lists the ephemerides of Comet C/2020 R7 (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 R7 (ATLAS) in our Online Planetarium at the chosen date.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2023 May 25 16h 54m 11s +29° 51’ 32” 16.11 Hercules
2023 May 26 16h 52m 24s +30° 05’ 17” 16.11 Hercules
2023 May 27 16h 50m 38s +30° 18’ 39” 16.12 Hercules
2023 May 28 16h 48m 51s +30° 31’ 38” 16.13 Hercules
2023 May 29 16h 47m 04s +30° 44’ 13” 16.14 Hercules
2023 May 30 16h 45m 17s +30° 56’ 25” 16.15 Hercules
2023 May 31 16h 43m 31s +31° 08’ 12” 16.16 Hercules
2023 Jun 01 16h 41m 44s +31° 19’ 35” 16.17 Hercules
2023 Jun 02 16h 39m 57s +31° 30’ 33” 16.18 Hercules
2023 Jun 03 16h 38m 12s +31° 41’ 08” 16.19 Hercules
2023 Jun 04 16h 36m 25s +31° 51’ 20” 16.20 Hercules
2023 Jun 05 16h 34m 40s +32° 01’ 08” 16.21 Hercules
2023 Jun 06 16h 32m 54s +32° 10’ 31” 16.22 Hercules
2023 Jun 07 16h 31m 09s +32° 19’ 31” 16.23 Hercules