Comet C/2021 X1 (Maury-Attard)
Comet C/2021 X1 (Maury-Attard) is in the constellation of
Delphinus,
at a distance of
Finder Charts
View interactive star map
High 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.
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.
Celestial Coordinates
Apparent
J2000
Additional Information
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.
Rise and Set Times
Today's rise, transit and set times of Comet C/2021 X1 (Maury-Attard) from Greenwich, UK (all times relative to the local timezone Europe/London):
- C/2021 X1 (Maury-Attard) is below the horizon from Greenwich, UK.
- 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.
Distance from Earth
The distance of Comet C/2021 X1 (Maury-Attard) from Earth is currently
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
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.
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.
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 |
Orbit Visualization
View Comet C/2021 X1 (Maury-Attard) in the 3D Solar System Simulator
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. Apparent celestial coordinates are provided.
| Date | Right AscensionR.A. | DeclinationDec. | MagnitudeMag | Constellation |
|---|---|---|---|---|
| 2025 May 08 | 20h 37m 15s | +20° 01’ 10” | 19.54 | Delphinus |
| 2025 May 09 | 20h 36m 53s | +20° 06’ 12” | 19.54 | Delphinus |
| 2025 May 10 | 20h 36m 31s | +20° 11’ 10” | 19.54 | Delphinus |
| 2025 May 11 | 20h 36m 08s | +20° 16’ 07” | 19.55 | Delphinus |
| 2025 May 12 | 20h 35m 45s | +20° 21’ 00” | 19.55 | Delphinus |
| 2025 May 13 | 20h 35m 21s | +20° 25’ 51” | 19.55 | Delphinus |
| 2025 May 14 | 20h 34m 56s | +20° 30’ 39” | 19.55 | Delphinus |
| 2025 May 15 | 20h 34m 31s | +20° 35’ 26” | 19.55 | Delphinus |
| 2025 May 16 | 20h 34m 05s | +20° 40’ 08” | 19.55 | Delphinus |
| 2025 May 17 | 20h 33m 37s | +20° 44’ 48” | 19.55 | Delphinus |
| 2025 May 18 | 20h 33m 10s | +20° 49’ 25” | 19.55 | Delphinus |
| 2025 May 19 | 20h 32m 42s | +20° 53’ 59” | 19.55 | Delphinus |
| 2025 May 20 | 20h 32m 14s | +20° 58’ 29” | 19.55 | Delphinus |
| 2025 May 21 | 20h 31m 44s | +21° 02’ 55” | 19.56 | Vulpecula |
Additional Resources on TheSkyLive
- Comet C/2021 X1 (Maury-Attard): Complete reference information on TheSkyLive.com
- Where is Comet C/2021 X1 (Maury-Attard)?: Key information on locating Comet C/2021 X1 (Maury-Attard) in the sky.
- Distance from Earth: Find out how far Comet C/2021 X1 (Maury-Attard) is from Earth right now.
- How Bright is Comet C/2021 X1 (Maury-Attard)?: Current visual brightness (magnitude) and apparent size.
- Rise and Set Times: Comet C/2021 X1 (Maury-Attard)'s rise and set times from your location.
- Interactive Sky Map: planetarium-style interactive visualization of Comet C/2021 X1 (Maury-Attard)'s position in the sky.
- Live Position Tracker: high precision position tracker with deep space imagery.
- Ephemeris: 15 days Comet C/2021 X1 (Maury-Attard)'s computed ephemeris.
- Orbital elements: information about Comet C/2021 X1 (Maury-Attard) orbital parameters.
- Orbit Visualization. 3d interactive visualization showing the orbit of Comet C/2021 X1 (Maury-Attard) with respect to the major Solar System objects.