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🌎  Greenwich, United Kingdom [change]

Comet 164P/Christensen

Comet 164P/Christensen is currently in the constellation of Scorpius. The current Right Ascension of Comet 164P/Christensen is 16h 19m 58s and the Declination is -12° 51’ 16” (topocentric coordinates computed for the selected location: Greenwich, United Kingdom [change]). The current estimated magnitude of Comet 164P/Christensen is 20.95 (JPL).

Summary of key facts about Comet 164P/Christensen [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]:

16h 19m 58s
-12° 51’ 16”

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 164P/Christensen available on TheSkyLive:

Available Resources

Comet 164P/Christensen Position and Finder Charts

Below we provide Comet 164P/Christensen 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 164P/Christensen in Scorpius on May, 16 2022
Field of view: 50x30 degrees
View fullscreen
Map showing Comet 164P/Christensen in Scorpius on May, 16 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 164P/Christensen is right now. Click on the image to see a more detailed fullscreen tracker view.

RA: 16h 19m 58s
Dec: -12° 51’ 16”
Deep sky finder chart for Comet 164P/Christensen
Field of view: 60x40 arcmins
View fullscreen

Also check out Where is Comet 164P/Christensen?, a page that provides all the information needed to find Comet 164P/Christensen in the sky and additional links to sky charts.

Comet 164P/Christensen Distance from Earth

The distance of Comet 164P/Christensen from Earth is currently 683,623,814 kilometers, equivalent to 4.569743 Astronomical Units. Light takes 38 minutes and 0.3236 seconds to travel from Comet 164P/Christensen and arrive to us.

38 minutes and 0.3236 seconds

The following chart shows the distance of Comet 164P/Christensen 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 164P/Christensen 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 164P/Christensen from Earth is also available as a real time updated value in the Live Position and Data Tracker.

Closest approach of Comet 164P/Christensen to Earth

Between January 2013 and December 2100, the closest approach of Comet 164P/Christensen to Earth happens on Tue Dec 4 2074 at a distance of 0.812188 Astronomical Units, or 121,501,626 kilometers:

Tue Dec 4 2074

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

Comet 164P/Christensen brightness

The current visual magnitude of Comet 164P/Christensen is 20.95.


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 164P/Christensen, 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 164P/Christensen between January 2013 and December 2100

Comet 164P/Christensen 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 164P/Christensen rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 102.8°
Max altitude: 25.7°
Azimuth: 257.1°

The rise and set times are defined as the time at which the upper limb of Comet 164P/Christensen 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 164P/Christensen Orbital Elements

The following table lists the orbital elements of Comet 164P/Christensen at epoch 10 December 2014 00:00 UTC (JD: 2457002.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.54028603
Orbit inclination i 16.26201829°
Perihelion distance q 1.68145002 AU
251,541,342 km
Aphelion distance Q 5.63375092 AU
842,797,143 km
Semi-major axis a 3.65760047 AU
547,169,243 km
Orbital period period 6.9952 years
2,555.0113 days
Date of perihelion transit Tp 2018-May-30 21:53:37
2,458,269.4122 JD
Next perihelion transit 2025-May-28 22:09
2,460,824.4235 JD
Argument of perihelion peri 326.00391345373°
Longitude of the ascending node node 88.30743483611°
Mean anomaly M 181.49260663498°
Mean motion n 0.14089957°/day

Visualization of Comet 164P/Christensen Orbit

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Comet 164P/Christensen with respect of the Sun and the orbits of the major planets. The position of Comet 164P/Christensen 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 164P/Christensen
View Comet 164P/Christensen in the 3D Solar System Simulator

Comet 164P/Christensen 15 Days Ephemeris

The following table lists the ephemerides of Comet 164P/Christensen computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Comet 164P/Christensen in our Online Planetarium at the chosen date.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2022 May 09 16h 24m 25s -12° 58’ 40” 20.97 Ophiucus
2022 May 10 16h 23m 51s -12° 57’ 38” 20.97 Ophiucus
2022 May 11 16h 23m 17s -12° 56’ 36” 20.97 Ophiucus
2022 May 12 16h 22m 41s -12° 55’ 36” 20.96 Scorpius
2022 May 13 16h 22m 05s -12° 54’ 37” 20.96 Scorpius
2022 May 14 16h 21m 29s -12° 53’ 39” 20.96 Scorpius
2022 May 15 16h 20m 53s -12° 52’ 41” 20.96 Scorpius
2022 May 16 16h 20m 17s -12° 51’ 45” 20.95 Scorpius
2022 May 17 16h 19m 41s -12° 50’ 48” 20.95 Scorpius
2022 May 18 16h 19m 05s -12° 49’ 54” 20.95 Scorpius
2022 May 19 16h 18m 28s -12° 49’ 00” 20.95 Scorpius
2022 May 20 16h 17m 50s -12° 48’ 09” 20.95 Scorpius
2022 May 21 16h 17m 12s -12° 47’ 17” 20.94 Scorpius
2022 May 22 16h 16m 36s -12° 46’ 27” 20.94 Scorpius