Comet C/2021 X1 (Maury-Attard)
Comet C/2021 X1 (Maury-Attard) is currently in the constellation of Pisces. The current Right Ascension of Comet C/2021 X1 (Maury-Attard) is 00h 38m 12s and the Declination is +06° 36’ 09” (topocentric coordinates computed for the selected location: Greenwich, United Kingdom ). The current estimated magnitude of Comet C/2021 X1 (Maury-Attard) is 14.83 (JPL) while the latest observed magnitude is 15.1 (COBS).
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 (all times relative to the local timezone Europe/London):
- C/2021 X1 (Maury-Attard) is below the horizon from Greenwich, United Kingdom .
- Given its current magnitude, C/2021 X1 (Maury-Attard) is visible with the help of a telescope having an aperture of 20 inches (500mm) or more.
- Go to interactive sky chart
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Comet C/2021 X1 (Maury-Attard) Position and Finder Charts
Below we provide Comet C/2021 X1 (Maury-Attard) 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.
Field of view: 50x30 degrees
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Field of view: 10x6 degrees
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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.


Field of view: 60x40 arcmins
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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 365,182,355 kilometers, equivalent to 2.441093 Astronomical Units. Light takes 20 minutes and 18.1172 seconds to travel from Comet C/2021 X1 (Maury-Attard) and arrive to us.
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.
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:
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.
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!
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 |
---|---|---|---|---|
2023 Sep 18 | 00h 58m 14s | +07° 05’ 08” | 14.81 | Pisces |
2023 Sep 19 | 00h 55m 40s | +07° 01’ 45” | 14.81 | Pisces |
2023 Sep 20 | 00h 53m 04s | +06° 58’ 14” | 14.81 | Pisces |
2023 Sep 21 | 00h 50m 29s | +06° 54’ 36” | 14.81 | Pisces |
2023 Sep 22 | 00h 47m 52s | +06° 50’ 51” | 14.82 | Pisces |
2023 Sep 23 | 00h 45m 14s | +06° 46’ 59” | 14.82 | Pisces |
2023 Sep 24 | 00h 42m 36s | +06° 43’ 01” | 14.82 | Pisces |
2023 Sep 25 | 00h 39m 57s | +06° 38’ 57” | 14.82 | Pisces |
2023 Sep 26 | 00h 37m 19s | +06° 34’ 49” | 14.83 | Pisces |
2023 Sep 27 | 00h 34m 41s | +06° 30’ 33” | 14.83 | Pisces |
2023 Sep 28 | 00h 32m 02s | +06° 26’ 14” | 14.83 | Pisces |
2023 Sep 29 | 00h 29m 23s | +06° 21’ 51” | 14.84 | Pisces |
2023 Sep 30 | 00h 26m 45s | +06° 17’ 21” | 14.84 | Pisces |
2023 Oct 01 | 00h 24m 07s | +06° 12’ 50” | 14.85 | Pisces |