Your guide to the Solar System and the night sky
🌎 Location: Greenwich, United Kingdom [change]

Comet 67P/Churyumov-Gerasimenko

Comet 67P/Churyumov-Gerasimenko is currently in the constellation of Sagittarius. The current Right Ascension of Comet 67P/Churyumov-Gerasimenko is 20h 05m 15s and the Declination is -23° 16’ 35” (topocentric coordinates computed for the selected location: Greenwich, United Kingdom [change]). The current estimated magnitude of Comet 67P/Churyumov-Gerasimenko is 19.66 (JPL).

Summary of key facts about Comet 67P/Churyumov-Gerasimenko [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]:

20h 05m 15s
-23° 16’ 35”
  • 67P/Churyumov-Gerasimenko is above the horizon from Greenwich, United Kingdom [change].
  • It is visible looking in the South-West direction at an altitude of 4° above the horizon.
  • Given its current magnitude, 67P/Churyumov-Gerasimenko is visible only through long exposure photography.
  • See also 67P/Churyumov-Gerasimenko rise and set times.
  • 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 information about Comet 67P/Churyumov-Gerasimenko available on TheSkyLive:

Available Resources

Comet 67P/Churyumov-Gerasimenko Position and Finder Charts

Below we provide Comet 67P/Churyumov-Gerasimenko 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 67P/Churyumov-Gerasimenko in Sagittarius on January, 25 2021
Field of view: 50x30 degrees
View fullscreen
Map showing Comet 67P/Churyumov-Gerasimenko in Sagittarius on January, 25 2021
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 67P/Churyumov-Gerasimenko is right now. Click on the image to see a more detailed fullscreen tracker view.

RA: 20h 05m 15s
Dec: -23° 16’ 35”
Deep sky finder chart for Comet 67P/Churyumov-Gerasimenko
Field of view: 60x40 arcmins
View fullscreen

Also check out Where is Comet 67P/Churyumov-Gerasimenko?, a page that provides all the information needed to find Comet 67P/Churyumov-Gerasimenko in the sky and additional links to sky charts.

Comet 67P/Churyumov-Gerasimenko Distance from Earth

The distance of Comet 67P/Churyumov-Gerasimenko from Earth is currently 602,280,425 kilometers, equivalent to 4.025996 Astronomical Units. Light takes 33 minutes and 28.9913 seconds to travel from Comet 67P/Churyumov-Gerasimenko and arrive to us.

33 minutes and 28.9913 seconds

The following chart shows the distance of Comet 67P/Churyumov-Gerasimenko 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 67P/Churyumov-Gerasimenko 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 67P/Churyumov-Gerasimenko from Earth is also available as a real time updated value in the Live Position and Data Tracker.

Closest approach of Comet 67P/Churyumov-Gerasimenko to Earth

Between January 2013 and December 2100, the closest approach of Comet 67P/Churyumov-Gerasimenko to Earth happens on Fri Nov 12 2021 at a distance of 0.418194 Astronomical Units, or 62,560,982 kilometers:

Fri Nov 12 2021

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

Comet 67P/Churyumov-Gerasimenko brightness

The current visual magnitude of Comet 67P/Churyumov-Gerasimenko is 19.66.


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 67P/Churyumov-Gerasimenko, 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 67P/Churyumov-Gerasimenko between January 2013 and December 2100

Comet 67P/Churyumov-Gerasimenko 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 67P/Churyumov-Gerasimenko rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 113.3°
Max altitude: 15.2°
Azimuth: 246.7°

The rise and set times are defined as the time at which the upper limb of Comet 67P/Churyumov-Gerasimenko 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 67P/Churyumov-Gerasimenko Orbital Elements

The following table lists the orbital elements of Comet 67P/Churyumov-Gerasimenko at epoch 23 October 2010 00:00 UTC (JD: 2455493.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.64058474
Orbit inclination i 7.04369869°
Perihelion distance q 1.24527937 AU
186,291,142 km
Aphelion distance Q 5.68419467 AU
850,343,421 km
Semi-major axis a 3.46473702 AU
518,317,281 km
Orbital period period 6.4500 years
2,355.6125 days
Date of perihelion transit Tp 2009-Feb-28 12:42:25
2,454,891.0295 JD
Next perihelion transit 2015-Aug-12 03:24
2,457,246.6419 JD
Argument of perihelion peri 12.694464049062°
Longitude of the ascending node node 50.180001144376°
Mean anomaly M 92.073462245369°
Mean motion n 0.15282650°/day

Visualization of Comet 67P/Churyumov-Gerasimenko Orbit

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Comet 67P/Churyumov-Gerasimenko with respect of the Sun and the orbits of the major planets. The position of Comet 67P/Churyumov-Gerasimenko 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 67P/Churyumov-Gerasimenko
View Comet 67P/Churyumov-Gerasimenko in the 3D Solar System Simulator

Comet 67P/Churyumov-Gerasimenko 15 Days Ephemeris

The following table lists the ephemerides of Comet 67P/Churyumov-Gerasimenko computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Comet 67P/Churyumov-Gerasimenko in our Online Planetarium at the chosen date.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2021 Jan 18 19h 53m 31s -23° 48’ 54” 19.77 Sagittarius
2021 Jan 19 19h 55m 04s -23° 44’ 50” 19.75 Sagittarius
2021 Jan 20 19h 56m 35s -23° 40’ 44” 19.74 Sagittarius
2021 Jan 21 19h 58m 08s -23° 36’ 33” 19.72 Sagittarius
2021 Jan 22 19h 59m 39s -23° 32’ 21” 19.71 Sagittarius
2021 Jan 23 20h 01m 13s -23° 28’ 04” 19.70 Sagittarius
2021 Jan 24 20h 02m 44s -23° 23’ 43” 19.68 Sagittarius
2021 Jan 25 20h 04m 18s -23° 19’ 19” 19.67 Sagittarius
2021 Jan 26 20h 05m 51s -23° 14’ 52” 19.65 Sagittarius
2021 Jan 27 20h 07m 24s -23° 10’ 22” 19.64 Sagittarius
2021 Jan 28 20h 08m 57s -23° 05’ 48” 19.62 Capricornus
2021 Jan 29 20h 10m 31s -23° 01’ 09” 19.61 Capricornus
2021 Jan 30 20h 12m 05s -22° 56’ 30” 19.59 Capricornus
2021 Jan 31 20h 13m 38s -22° 51’ 45” 19.57 Capricornus