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🌎  Greenwich, United Kingdom [change]

Comet C/2021 C5 (PANSTARRS)

Comet C/2021 C5 (PANSTARRS) is currently in the constellation of Hydra. The current Right Ascension of Comet C/2021 C5 (PANSTARRS) is 09h 36m 24s and the Declination is -16° 35’ 25” (topocentric coordinates computed for the selected location: Greenwich, United Kingdom [change]). The current estimated magnitude of Comet C/2021 C5 (PANSTARRS) is 17.83 (JPL).

Summary of key facts about Comet C/2021 C5 (PANSTARRS) [tip: you can also create a Quick Access page for this data if you access it frequently and would like to have a simpler view]:

09h 36m 24s
-16° 35’ 25”

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 information about Comet C/2021 C5 (PANSTARRS) available on TheSkyLive:

Available Resources

Comet C/2021 C5 (PANSTARRS) Position and Finder Charts

Below we provide Comet C/2021 C5 (PANSTARRS) 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.

Map showing Comet C/2021 C5 (PANSTARRS) in Hydra on May, 17 2022
Field of view: 50x30 degrees
View fullscreen
Map showing Comet C/2021 C5 (PANSTARRS) in Hydra on May, 17 2022
Field of view: 10x6 degrees
View fullscreen
 = visible to the naked eye
 = binocular, brighter than 10th magnitude
= current altitude ≥ 30°   = current altitude < 30°   = below the horizon
Location: Greenwich, United Kingdom [change]

Higher 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.

RA: 09h 36m 24s
Dec: -16° 35’ 25”
Deep sky finder chart for Comet C/2021 C5 (PANSTARRS)
Field of view: 60x40 arcmins
View fullscreen

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.

Comet C/2021 C5 (PANSTARRS) Distance from Earth

The distance of Comet C/2021 C5 (PANSTARRS) from Earth is currently 580,435,045 kilometers, equivalent to 3.879969 Astronomical Units. Light takes 32 minutes and 16.1229 seconds to travel from Comet C/2021 C5 (PANSTARRS) and arrive to us.

32 minutes and 16.1229 seconds

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.

Distance of Comet C/2021 C5 (PANSTARRS) from Earth between January 2013 and December 2100

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 of Comet C/2021 C5 (PANSTARRS) to Earth

Between January 2013 and December 2100, the closest approach of Comet C/2021 C5 (PANSTARRS) to Earth happens on Wed Jun 21 2023 at a distance of 2.803362 Astronomical Units, or 419,376,935 kilometers:

Wed Jun 21 2023

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

Comet C/2021 C5 (PANSTARRS) brightness

The current visual magnitude of Comet C/2021 C5 (PANSTARRS) is 17.83.


The observed magnitude and coma diameter values are derived from the Comet Observers Database by averaging the values reported in recent observations (more recent than 4 days), when available. The Estimated Magnitude comes from the JPL Horizons ephemerides service and might be inaccurate given the highly dynamic and unpredictable behavior of comets. When available, please refer to the Observed Magnitude value and consider the Estimated 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.

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.

Predicted magnitude of Comet C/2021 C5 (PANSTARRS) between January 2013 and December 2100

Comet C/2021 C5 (PANSTARRS) rise and set times

Location: Greenwich, United Kingdom [change]
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

Today's Comet C/2021 C5 (PANSTARRS) rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 106.6°
Max altitude: 21.9°
Azimuth: 253.4°

The rise and set times are defined as the time at which the upper limb of Comet C/2021 C5 (PANSTARRS) touches the horizon, considering the effect of the atmospheric refraction. As the atmospheric conditions cannot be modeled precisely the times reported here should be considered correct with an approximation of few minutes.

Comet C/2021 C5 (PANSTARRS) Orbital Elements

The following table lists the orbital elements of Comet C/2021 C5 (PANSTARRS) at epoch 18 December 2021 00:00 UTC (JD: 2459567.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.99935035
Orbit inclination i 50.78587078°
Perihelion distance q 3.24175873 AU
484,960,204 km
Aphelion distance Q 9,976.75262042 AU
1,492,500,951,509 km
Semi-major axis a 4,989.99718957 AU
746,492,955,856 km
Orbital period period 352,499.6205 years
128,750,486.3970 days
Date of perihelion transit Tp 2023-Feb-11 00:41:45
2,459,986.5290 JD
Argument of perihelion peri 270.91705427398°
Longitude of the ascending node node 323.69052193679°
Mean anomaly M 359.99882835053°
Mean motion n 0.00000280°/day

Visualization of Comet C/2021 C5 (PANSTARRS) Orbit

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Comet C/2021 C5 (PANSTARRS) with respect of the Sun and the orbits of the major planets. The position of Comet C/2021 C5 (PANSTARRS) 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 C5 (PANSTARRS)
View Comet C/2021 C5 (PANSTARRS) in the 3D Solar System Simulator

Comet C/2021 C5 (PANSTARRS) 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. Click on each row of the table to locate Comet C/2021 C5 (PANSTARRS) in our Online Planetarium at the chosen date.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2022 May 10 09h 35m 40s -16° 28’ 26” 17.84 Hydra
2022 May 11 09h 35m 44s -16° 29’ 09” 17.84 Hydra
2022 May 12 09h 35m 47s -16° 29’ 57” 17.84 Hydra
2022 May 13 09h 35m 52s -16° 30’ 50” 17.84 Hydra
2022 May 14 09h 35m 57s -16° 31’ 45” 17.84 Hydra
2022 May 15 09h 36m 03s -16° 32’ 45” 17.83 Hydra
2022 May 16 09h 36m 11s -16° 33’ 50” 17.83 Hydra
2022 May 17 09h 36m 20s -16° 34’ 59” 17.83 Hydra
2022 May 18 09h 36m 29s -16° 36’ 11” 17.83 Hydra
2022 May 19 09h 36m 41s -16° 37’ 29” 17.83 Hydra
2022 May 20 09h 36m 51s -16° 38’ 52” 17.83 Hydra
2022 May 21 09h 37m 05s -16° 40’ 18” 17.83 Hydra
2022 May 22 09h 37m 18s -16° 41’ 49” 17.82 Hydra
2022 May 23 09h 37m 32s -16° 43’ 26” 17.82 Hydra