We use cookies to deliver essential features and to measure their performance. By using this site you accept our Privacy Policies.
A Complete Guide to the Solar System and the Night Sky
Help keep this site free and ads-free: donate now!
public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
SunriseRise: 5:39  
clear_day Transit: 12:56  
SunsetSet: 20:14
sunny DaytimeWhat's Visible Now?
Comets » 

Comet C/2021 X1 (Maury-Attard)

Altitude: 51.4°   Azimuth: 204.4°   Direction: South-South-West

Comet C/2021 X1 (Maury-Attard) is currently in the constellation of Pegasus, at a distance of 756,177,970 kilometers from Earth.

Finder chart of C/2021 X1 (Maury-Attard) in Pegasus on April,27 2024
Map showing Comet C/2021 X1 (Maury-Attard) in Pegasus on April, 27 2024. Field of view: 50x30 degrees
View interactive star map
The current Right Ascension of Comet C/2021 X1 (Maury-Attard) is 22h 49m 03s and the Declination is +14° 57’ 05” (topocentric coordinates computed for the selected location: Greenwich, United Kingdom edit_location_alt). The current estimated magnitude of Comet C/2021 X1 (Maury-Attard) is 17.33 (JPL).

22h 49m 03s
+14° 57’ 05”
Pegasus
n/a
n/a
n/a
n/a
17.33

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 X1 (Maury-Attard) from Greenwich, United Kingdom edit_location_alt (all times relative to the local timezone Europe/London):

Azimuth: 75.1°
Max altitude: 53.5°
Azimuth: 285.0°
  • C/2021 X1 (Maury-Attard) is above the horizon from Greenwich, United Kingdom edit_location_alt.
  • Right now it is placed in the South-South-West direction at an altitude of 51° above the horizon.
  • Given its current magnitude, C/2021 X1 (Maury-Attard) 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.

Additional Resources

Comet C/2021 X1 (Maury-Attard) Position and Finder Charts

Finder chart of C/2021 X1 (Maury-Attard)
Map showing Comet C/2021 X1 (Maury-Attard) in Pegasus on April, 27 2024
Field of view: 10x6 degrees
View fullscreen

Higher precision deep sky finder chart, 60 arcmin wide, showing where Comet C/2021 X1 (Maury-Attard) is right now. Click on the image to see a more detailed fullscreen tracker view.

C/2021 X1 (Maury-Attard)
RA: 22h 49m 03s
Dec: +14° 57’ 05”
Deep sky finder chart for Comet C/2021 X1 (Maury-Attard)
Field of view: 60x40 arcmins
View fullscreen

Also check out Where is Comet C/2021 X1 (Maury-Attard)?, a page that provides all the information needed to find Comet C/2021 X1 (Maury-Attard) in the sky and additional links to sky charts.

Comet C/2021 X1 (Maury-Attard) Distance from Earth

The distance of Comet C/2021 X1 (Maury-Attard) from Earth is currently 756,177,970 kilometers, equivalent to 5.054738 Astronomical Units. Light takes 42 minutes and 2.3382 seconds to travel from Comet C/2021 X1 (Maury-Attard) and arrive to us.

756,177,970
5.054738
42 minutes and 2.3382 seconds

The following chart shows the distance of Comet C/2021 X1 (Maury-Attard) 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 X1 (Maury-Attard) 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 X1 (Maury-Attard) from Earth is also available as a real time updated value in the Live Position and Data Tracker.

Closest Approach of Comet C/2021 X1 (Maury-Attard) to Earth

Between 1 January 2000 and 31 December 2099, the closest approach of Comet C/2021 X1 (Maury-Attard) to Earth happens on Mon Sep 25 2023 at a distance of 2.441025 Astronomical Units, or 365,172,181 kilometers:

Mon Sep 25 2023
365,172,181
2.441025

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

Comet C/2021 X1 (Maury-Attard) Brightness and Light Curve

The following chart is the predicted light curve (visual magnitude as a function of time) of Comet C/2021 X1 (Maury-Attard), 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 X1 (Maury-Attard) as a function of time

Comet C/2021 X1 (Maury-Attard) Orbital Elements

The following table lists the orbital elements of Comet C/2021 X1 (Maury-Attard) at epoch 18 November 2022 00:00 UTC (JD: 2459902.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.99995644
Orbit inclination i 140.12134640°
Perihelion distance q 3.23370264 AU
483,755,030 km
Aphelion distance Q 148,458.46721439 AU
22,209,070,627,196 km
Semi-major axis a 74,230.85045851 AU
11,104,777,191,113 km
Orbital period period 20,224,828.9211 years
7,387,118,763.4397 days
Date of perihelion transit Tp 2023-May-27 11:25:04
2,460,091.9757 JD
Next perihelion transit 2023-May-27 11:25
7,389,578,855.4154 JD
Argument of perihelion peri 334.62553622058°
Longitude of the ascending node node 10.58474218893°
Mean anomaly M 359.99999076619°
Mean motion n 0.00000005°/day

Visualization of Comet C/2021 X1 (Maury-Attard) Orbit

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Comet C/2021 X1 (Maury-Attard) with respect of the Sun and the orbits of the major planets. The position of Comet C/2021 X1 (Maury-Attard) 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/2021 X1 (Maury-Attard)
View Comet C/2021 X1 (Maury-Attard) in the 3D Solar System Simulator

Comet C/2021 X1 (Maury-Attard) 15 Days Ephemeris

The following table lists the ephemerides of Comet C/2021 X1 (Maury-Attard) computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Comet C/2021 X1 (Maury-Attard) in our Online Planetarium at the chosen date.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2024 Apr 20 22h 49m 17s +14° 02’ 29” 17.32 Pegasus
2024 Apr 21 22h 49m 17s +14° 09’ 50” 17.32 Pegasus
2024 Apr 22 22h 49m 17s +14° 17’ 12” 17.33 Pegasus
2024 Apr 23 22h 49m 15s +14° 24’ 34” 17.33 Pegasus
2024 Apr 24 22h 49m 14s +14° 31’ 59” 17.33 Pegasus
2024 Apr 25 22h 49m 12s +14° 39’ 23” 17.33 Pegasus
2024 Apr 26 22h 49m 09s +14° 46’ 46” 17.33 Pegasus
2024 Apr 27 22h 49m 05s +14° 54’ 11” 17.33 Pegasus
2024 Apr 28 22h 49m 00s +15° 01’ 36” 17.34 Pegasus
2024 Apr 29 22h 48m 56s +15° 09’ 02” 17.34 Pegasus
2024 Apr 30 22h 48m 51s +15° 16’ 27” 17.34 Pegasus
2024 May 01 22h 48m 43s +15° 23’ 53” 17.34 Pegasus
2024 May 02 22h 48m 38s +15° 31’ 19” 17.34 Pegasus
2024 May 03 22h 48m 29s +15° 38’ 45” 17.34 Pegasus