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public LocationGreenwich, UK
Sunrise: 4:57 
Transit: 13:04 
Sunset: 21:10
sunny   (Daytime)   What's Visible Now?
Comets » 

Comet C/2021 G2 (Atlas)

Above the horizon.  Rise: 13:49 | Tran: 17:52 | Set: 21:55
Altitude: 12.6°   Azimuth: 150.7°   Direction: South-South-East

Comet C/2021 G2 (Atlas) is currently in the constellation of Corvus, at a distance of 753,210,971 kilometers from Earth.

The current Right Ascension of Comet C/2021 G2 (Atlas) is 12h 16m 34s and the Declination is -21° 04’ 38” (topocentric coordinates computed for Greenwich, UK).

The latest observed magnitude of Comet C/2021 G2 (Atlas) is 14.2 (data provided by COBS)

Finder chart of C/2021 G2 (Atlas) in Corvus on July,12 2024
Map showing Comet C/2021 G2 (Atlas) in Corvus on July, 12 2024. Field of view: 50x30 degrees
View interactive star map

12h 16m 34s
-21° 04’ 38”

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/2021 G2 (Atlas) from Greenwich, UK (all times relative to the local timezone Europe/London):

Azimuth: 111.1°
Max altitude: 17.4°
Azimuth: 248.9°
  • C/2021 G2 (Atlas) is above the horizon from Greenwich, UK.
  • Right now it is placed in the South-South-East direction at an altitude of 13° above the horizon.
  • Given its current magnitude, C/2021 G2 (Atlas) is visible with the help of a telescope having an aperture of 14 inches (350mm) or more.
  • 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.

Additional Resources

Comet C/2021 G2 (Atlas) Position and Finder Charts

Finder chart of C/2021 G2 (Atlas)
Sky map showing Comet C/2021 G2 (Atlas) in Corvus on July, 12 2024. Field of view: 10x6 degrees. View in interactive sky chart

High precision deep sky finder chart, 60 arcmin wide, showing where Comet C/2021 G2 (Atlas) is right now. Click on the image to see a more detailed fullscreen tracker view.

C/2021 G2 (Atlas)
RA: 12h 16m 34s
Dec: -21° 04’ 38”
Deep sky finder chart for Comet C/2021 G2 (Atlas). Field of view: 60x40 arcmins. View in deep sky object tracker

Also check out Where is Comet C/2021 G2 (Atlas)?, a page that provides all the information needed to find Comet C/2021 G2 (Atlas) in the sky and additional links to sky charts.

Comet C/2021 G2 (Atlas) Distance from Earth

The distance of Comet C/2021 G2 (Atlas) from Earth is currently 753,210,971 kilometers, equivalent to 5.034904 Astronomical Units. Light takes 41 minutes and 52.4414 seconds to travel from Comet C/2021 G2 (Atlas) and arrive to us.

41 minutes and 52.4414 seconds

The following chart shows the distance of Comet C/2021 G2 (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/2021 G2 (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/2021 G2 (Atlas) from Earth is also available as a real time updated value in the Live Position and Data Tracker.

Closest Approach of Comet C/2021 G2 (Atlas) to Earth

Between 1 January 2000 and 31 December 2099, the closest approach of Comet C/2021 G2 (Atlas) to Earth happens on Mon Apr 15 2024 at a distance of 4.237736 Astronomical Units, or 633,956,301 kilometers:

Mon Apr 15 2024

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

Comet C/2021 G2 (Atlas) Brightness and Light Curve

The following chart is the predicted light curve (visual magnitude as a function of time) of Comet C/2021 G2 (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/2021 G2 (Atlas) as a function of time

Comet C/2021 G2 (Atlas) Orbital Elements

The following table lists the orbital elements of Comet C/2021 G2 (Atlas) at epoch 27 July 2022 00:00 UTC (JD: 2459788.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.99882083
Orbit inclination i 48.47251345°
Perihelion distance q 4.97959854 AU
744,937,340 km
Aphelion distance Q 8,440.97844756 AU
1,262,752,404,912 km
Semi-major axis a 4,222.97902305 AU
631,748,671,126 km
Orbital period period 274,433.1613 years
100,236,712.1727 days
Date of perihelion transit Tp 2024-Sep-09 22:32:55
2,460,563.4395 JD
Argument of perihelion peri 343.35883101016°
Longitude of the ascending node node 221.10788253081°
Mean anomaly M 359.99721680586°
Mean motion n 0.00000359°/day

Visualization of Comet C/2021 G2 (Atlas) Orbit

Orbit Diagram of Comet C/2021 G2 (Atlas)
View Comet C/2021 G2 (Atlas) in the 3D Solar System Simulator

Comet C/2021 G2 (Atlas) 15 Days Ephemeris

The following table lists the ephemerides of Comet C/2021 G2 (Atlas) computed for the past and next 7 days, with a 24 hours interval.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2024 Jul 05 12h 11m 26s -21° 44’ 12” 14.81 Corvus
2024 Jul 06 12h 12m 06s -21° 38’ 39” 14.82 Corvus
2024 Jul 07 12h 12m 45s -21° 33’ 12” 14.82 Corvus
2024 Jul 08 12h 13m 23s -21° 27’ 52” 14.83 Corvus
2024 Jul 09 12h 14m 04s -21° 22’ 39” 14.83 Corvus
2024 Jul 10 12h 14m 44s -21° 17’ 31” 14.84 Corvus
2024 Jul 11 12h 15m 25s -21° 12’ 30” 14.85 Corvus
2024 Jul 12 12h 16m 08s -21° 07’ 36” 14.85 Corvus
2024 Jul 13 12h 16m 50s -21° 02’ 47” 14.86 Corvus
2024 Jul 14 12h 17m 31s -20° 58’ 05” 14.86 Corvus
2024 Jul 15 12h 18m 15s -20° 53’ 27” 14.87 Corvus
2024 Jul 16 12h 18m 59s -20° 48’ 57” 14.87 Corvus
2024 Jul 17 12h 19m 41s -20° 44’ 34” 14.88 Corvus
2024 Jul 18 12h 20m 26s -20° 40’ 14” 14.88 Corvus