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public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 4:44 
Transit: 13:00 
Sunset: 21:16
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Comets » 

Comet C/2021 C5 (PANSTARRS)

Above the horizon.  Rise: 23:57 | Tran: 5:59 | Set: 11:58
Alt: 38.12°   Az: 190.81°   Direction: South

Comet C/2021 C5 (PANSTARRS) is in the constellation of Aquarius, at a distance of 1,137,848,061.0 kilometers from Earth. The current Right Ascension is 22h 26m 55s and the Declination is +00° 06’ 03” (apparent coordinates). The predicted magnitude of Comet C/2021 C5 (PANSTARRS) is 21.45 (data provided by JPL Horizons).

Finder Charts

Map showing Comet C/2021 C5 (PANSTARRS) in Aquarius on June, 13 2025. Field of view: 50x30 degrees
View interactive star map
Sky map showing Comet C/2021 C5 (PANSTARRS) in Aquarius on June, 13 2025. Field of view: 15x9 degrees. View in interactive sky chart

High precision deep sky finder chart, 60 arcmin wide, showing where Comet C/2021 C5 (PANSTARRS) is right now. Click on the image to see a more detailed fullscreen tracker view.

C/2021 C5 (PANSTARRS)
RA: 22h 25m 37s
Dec: -00° 01’ 44”
Deep sky finder chart for Comet C/2021 C5 (PANSTARRS). Field of view: 60x40 arcmins. View in deep sky object tracker

Also check out Where is Comet C/2021 C5 (PANSTARRS)?, a page that provides all the information needed to find Comet C/2021 C5 (PANSTARRS) in the sky and additional links to sky charts.

Celestial Coordinates

Apparent

22h 26m 55s
+00° 06’ 03”
00h 33m 56s
23h 00m 52s

J2000

22h 25m 37s
-00° 01’ 44”

Additional Information

Aquarius
n/a
n/a
n/a
n/a
21.45

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 C5 (PANSTARRS) from Greenwich, UK (all times relative to the local timezone Europe/London):

Azimuth: 89.9°
Max altitude: 38.6°
Azimuth: 270.1°
  • C/2021 C5 (PANSTARRS) is above the horizon from Greenwich, UK.
  • Right now it is placed in the South direction at an altitude of 38.12° above the horizon.
  • Given its current magnitude, C/2021 C5 (PANSTARRS) 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 C5 (PANSTARRS) from Earth is currently 1,137,848,061.0 kilometers, equivalent to 7.6060444957 Astronomical Units. Light takes 1h 3m 15.453s to travel from Comet C/2021 C5 (PANSTARRS) and arrive to us.

1,137,848,061.0
7.6060444957
1h 3m 15.453s

The following chart shows the distance of Comet C/2021 C5 (PANSTARRS) 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 C5 (PANSTARRS) 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 C5 (PANSTARRS) 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 C5 (PANSTARRS) to Earth happens on Wed Jun 21 2023 at a distance of 2.803424 Astronomical Units, or 419,386,279 kilometers:

Wed Jun 21 2023
419,386,279
2.803424

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 C5 (PANSTARRS), 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 C5 (PANSTARRS) as a function of time

Orbital Elements

The following table lists the orbital elements of Comet C/2021 C5 (PANSTARRS) at epoch 01 March 2022 00:00 UTC (JD: 2459640.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.99926635
Orbit inclination i 50.78462258°
Perihelion distance q 3.24181968 AU
484,969,322 km
Aphelion distance Q 8,834.28484526 AU
1,321,590,204,658 km
Semi-major axis a 4,418.76333247 AU
661,037,586,990 km
Orbital period period 293,737.4461 years
107,287,602.1773 days
Date of perihelion transit Tp 2023-Feb-11 00:59:44
2,459,986.5415 JD
Next perihelion transit 295766-Aug-04 05:15
109,747,588.7188 JD
Argument of perihelion peri 270.91735965107°
Longitude of the ascending node node 323.68990555098°
Mean anomaly M 359.99883886922°
Mean motion n 0.00000336°/day
2h1>Orbit Visualization
Orbit Diagram of Comet C/2021 C5 (PANSTARRS)
View Comet C/2021 C5 (PANSTARRS) in the 3D Solar System Simulator

15 Days Ephemeris

The following table lists the ephemerides of Comet C/2021 C5 (PANSTARRS) 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 Jun 06 22h 27m 30s -00° 14’ 08” 21.45 Aquarius
2025 Jun 07 22h 27m 27s -00° 11’ 12” 21.45 Aquarius
2025 Jun 08 22h 27m 23s -00° 08’ 19” 21.45 Aquarius
2025 Jun 09 22h 27m 19s -00° 05’ 28” 21.45 Aquarius
2025 Jun 10 22h 27m 14s -00° 02’ 41” 21.45 Aquarius
2025 Jun 11 22h 27m 08s +00° 00’ 04” 21.45 Aquarius
2025 Jun 12 22h 27m 03s +00° 02’ 47” 21.45 Aquarius
2025 Jun 13 22h 26m 57s +00° 05’ 27” 21.45 Aquarius
2025 Jun 14 22h 26m 50s +00° 08’ 02” 21.45 Aquarius
2025 Jun 15 22h 26m 43s +00° 10’ 37” 21.45 Aquarius
2025 Jun 16 22h 26m 35s +00° 13’ 09” 21.44 Aquarius
2025 Jun 17 22h 26m 27s +00° 15’ 39” 21.44 Aquarius
2025 Jun 18 22h 26m 18s +00° 18’ 05” 21.44 Aquarius
2025 Jun 19 22h 26m 09s +00° 20’ 29” 21.44 Aquarius

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