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🌎  Greenwich, United Kingdom [change]

Comet 210P/Christensen

Comet 210P/Christensen is currently in the constellation of Ophiucus. The current Right Ascension of Comet 210P/Christensen is 16h 30m 22s and the Declination is -17° 52’ 33” (topocentric coordinates computed for the selected location: Greenwich, United Kingdom [change]). The current estimated magnitude of Comet 210P/Christensen is 25.94 (JPL).

Summary of key facts about Comet 210P/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 30m 22s
-17° 52’ 33”
  • 210P/Christensen is above the horizon from Greenwich, United Kingdom [change].
  • It is visible looking in the East-South-East direction at an altitude of 0° above the horizon.
  • Given its current magnitude, 210P/Christensen is visible only through long exposure photography.
  • See also 210P/Christensen 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 210P/Christensen available on TheSkyLive:

Available Resources

Comet 210P/Christensen Position and Finder Charts

Below we provide Comet 210P/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 210P/Christensen in Ophiucus on December, 09 2021
Field of view: 50x30 degrees
View fullscreen
Map showing Comet 210P/Christensen in Ophiucus on December, 09 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 210P/Christensen is right now. Click on the image to see a more detailed fullscreen tracker view.

RA: 16h 30m 22s
Dec: -17° 52’ 33”
Deep sky finder chart for Comet 210P/Christensen
Field of view: 60x40 arcmins
View fullscreen

Also check out Where is Comet 210P/Christensen?, a page that provides all the information needed to find Comet 210P/Christensen in the sky and additional links to sky charts.

Comet 210P/Christensen Distance from Earth

The distance of Comet 210P/Christensen from Earth is currently 913,824,708 kilometers, equivalent to 6.108541 Astronomical Units. Light takes 50 minutes and 48.1911 seconds to travel from Comet 210P/Christensen and arrive to us.

50 minutes and 48.1911 seconds

The following chart shows the distance of Comet 210P/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 210P/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 210P/Christensen from Earth is also available as a real time updated value in the Live Position and Data Tracker.

Closest approach of Comet 210P/Christensen to Earth

Between January 2013 and December 2100, the closest approach of Comet 210P/Christensen to Earth happens on Thu Nov 11 2100 at a distance of 0.269751 Astronomical Units, or 40,354,122 kilometers:

Thu Nov 11 2100

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

Comet 210P/Christensen brightness

The current visual magnitude of Comet 210P/Christensen is 25.94.


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 210P/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 210P/Christensen between January 2013 and December 2100

Comet 210P/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 210P/Christensen rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 107.9°
Max altitude: 20.6°
Azimuth: 252.1°

The rise and set times are defined as the time at which the upper limb of Comet 210P/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 210P/Christensen Orbital Elements

The following table lists the orbital elements of Comet 210P/Christensen at epoch 02 February 2010 00:00 UTC (JD: 2455230.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.83169742
Orbit inclination i 10.21718056°
Perihelion distance q 0.53444526 AU
79,951,873 km
Aphelion distance Q 5.81655966 AU
870,144,941 km
Semi-major axis a 3.17550246 AU
475,048,407 km
Orbital period period 5.6588 years
2,066.8888 days
Date of perihelion transit Tp 2008-Dec-19 23:32:40
2,454,820.4810 JD
Next perihelion transit 2014-Aug-17 20:52
2,456,887.3698 JD
Argument of perihelion peri 345.76600078503°
Longitude of the ascending node node 93.872370151587°
Mean anomaly M 71.414984861488°
Mean motion n 0.17417483°/day

Visualization of Comet 210P/Christensen Orbit

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Comet 210P/Christensen with respect of the Sun and the orbits of the major planets. The position of Comet 210P/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 210P/Christensen
View Comet 210P/Christensen in the 3D Solar System Simulator

Comet 210P/Christensen 15 Days Ephemeris

The following table lists the ephemerides of Comet 210P/Christensen computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Comet 210P/Christensen in our Online Planetarium at the chosen date.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2021 Dec 02 16h 24m 33s -17° 37’ 50” 25.91 Ophiucus
2021 Dec 03 16h 25m 22s -17° 39’ 56” 25.92 Ophiucus
2021 Dec 04 16h 26m 09s -17° 42’ 01” 25.92 Ophiucus
2021 Dec 05 16h 26m 57s -17° 44’ 03” 25.93 Ophiucus
2021 Dec 06 16h 27m 46s -17° 46’ 05” 25.93 Ophiucus
2021 Dec 07 16h 28m 33s -17° 48’ 05” 25.93 Ophiucus
2021 Dec 08 16h 29m 21s -17° 50’ 03” 25.93 Ophiucus
2021 Dec 09 16h 30m 09s -17° 51’ 59” 25.94 Ophiucus
2021 Dec 10 16h 30m 56s -17° 53’ 53” 25.94 Ophiucus
2021 Dec 11 16h 31m 44s -17° 55’ 45” 25.94 Ophiucus
2021 Dec 12 16h 32m 30s -17° 57’ 37” 25.95 Ophiucus
2021 Dec 13 16h 33m 19s -17° 59’ 26” 25.95 Ophiucus
2021 Dec 14 16h 34m 05s -18° 01’ 14” 25.95 Ophiucus
2021 Dec 15 16h 34m 53s -18° 03’ 01” 25.95 Ophiucus