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🌎  Greenwich, United Kingdom [change]

Comet C/2020 H6 (ATLAS)

Comet C/2020 H6 (ATLAS) is currently in the constellation of Serpens. The current Right Ascension of Comet C/2020 H6 (ATLAS) is 15h 23m 31s and the Declination is +07° 19’ 08” (topocentric coordinates computed for the selected location: Greenwich, United Kingdom [change]). The current estimated magnitude of Comet C/2020 H6 (ATLAS) is 17.08 (JPL).

Summary of key facts about Comet C/2020 H6 (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]:

15h 23m 31s
+07° 19’ 08”

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 H6 (ATLAS) available on TheSkyLive:

Available Resources

Comet C/2020 H6 (ATLAS) Position and Finder Charts

Below we provide Comet C/2020 H6 (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 H6 (ATLAS) in Serpens on December, 08 2021
Field of view: 50x30 degrees
View fullscreen
Map showing Comet C/2020 H6 (ATLAS) in Serpens on December, 08 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 H6 (ATLAS) is right now. Click on the image to see a more detailed fullscreen tracker view.

C/2020 H6 (ATLAS)
RA: 15h 23m 31s
Dec: +07° 19’ 08”
Deep sky finder chart for Comet C/2020 H6 (ATLAS)
Field of view: 60x40 arcmins
View fullscreen

Also check out Where is Comet C/2020 H6 (ATLAS)?, a page that provides all the information needed to find Comet C/2020 H6 (ATLAS) in the sky and additional links to sky charts.

Comet C/2020 H6 (ATLAS) Distance from Earth

The distance of Comet C/2020 H6 (ATLAS) from Earth is currently 817,369,491 kilometers, equivalent to 5.463778 Astronomical Units. Light takes 45 minutes and 26.4511 seconds to travel from Comet C/2020 H6 (ATLAS) and arrive to us.

45 minutes and 26.4511 seconds

The following chart shows the distance of Comet C/2020 H6 (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 H6 (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 H6 (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 H6 (ATLAS) to Earth

Between January 2013 and December 2100, the closest approach of Comet C/2020 H6 (ATLAS) to Earth happens on Fri Apr 30 2021 at a distance of 3.857965 Astronomical Units, or 577,143,407 kilometers:

Fri Apr 30 2021

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

Comet C/2020 H6 (ATLAS) brightness

The current visual magnitude of Comet C/2020 H6 (ATLAS) is 17.08.


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 H6 (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 H6 (ATLAS) between January 2013 and December 2100

Comet C/2020 H6 (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 H6 (ATLAS) rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 82.8°
Max altitude: 45.8°
Azimuth: 277.3°

The rise and set times are defined as the time at which the upper limb of Comet C/2020 H6 (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 H6 (ATLAS) Orbital Elements

The following table lists the orbital elements of Comet C/2020 H6 (ATLAS) at epoch 21 March 2021 00:00 UTC (JD: 2459295.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 1.00082276
Orbit inclination i 79.95957762°
Perihelion distance q 4.70292210 AU
703,547,133 km
Aphelion distance Q n.a.
Semi-major axis a n.a.
Orbital period period n.a.
Date of perihelion transit Tp 2021-Oct-01 01:13:26
2,459,488.5510 JD
Argument of perihelion peri 20.344980769263°
Longitude of the ascending node node 213.70547874669°
Mean anomaly M -0.0004402872328531°
Mean motion n 0.00000228°/day

Visualization of Comet C/2020 H6 (ATLAS) Orbit

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Comet C/2020 H6 (ATLAS) with respect of the Sun and the orbits of the major planets. The position of Comet C/2020 H6 (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 H6 (ATLAS)
View Comet C/2020 H6 (ATLAS) in the 3D Solar System Simulator

Comet C/2020 H6 (ATLAS) 15 Days Ephemeris

The following table lists the ephemerides of Comet C/2020 H6 (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 H6 (ATLAS) in our Online Planetarium at the chosen date.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2021 Dec 01 15h 16m 22s +06° 36’ 34” 17.09 Serpens
2021 Dec 02 15h 17m 17s +06° 41’ 35” 17.09 Serpens
2021 Dec 03 15h 18m 11s +06° 46’ 41” 17.09 Serpens
2021 Dec 04 15h 19m 05s +06° 51’ 54” 17.09 Serpens
2021 Dec 05 15h 19m 59s +06° 57’ 11” 17.09 Serpens
2021 Dec 06 15h 20m 53s +07° 02’ 35” 17.08 Serpens
2021 Dec 07 15h 21m 47s +07° 08’ 05” 17.08 Serpens
2021 Dec 08 15h 22m 40s +07° 13’ 41” 17.08 Serpens
2021 Dec 09 15h 23m 34s +07° 19’ 23” 17.08 Serpens
2021 Dec 10 15h 24m 27s +07° 25’ 11” 17.08 Serpens
2021 Dec 11 15h 25m 20s +07° 31’ 06” 17.07 Serpens
2021 Dec 12 15h 26m 13s +07° 37’ 08” 17.07 Serpens
2021 Dec 13 15h 27m 06s +07° 43’ 14” 17.07 Serpens
2021 Dec 14 15h 28m 00s +07° 49’ 28” 17.07 Serpens