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🌎  Greenwich, United Kingdom [change]

Comet 209P/LINEAR

Comet 209P/LINEAR is currently in the constellation of Aries. The current Right Ascension of Comet 209P/LINEAR is 03h 07m 47s and the Declination is +11° 26’ 37” (topocentric coordinates computed for the selected location: Greenwich, United Kingdom [change]). The current estimated magnitude of Comet 209P/LINEAR is 25.01 (JPL).

Summary of key facts about Comet 209P/LINEAR [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]:

03h 07m 47s
+11° 26’ 37”
  • 209P/LINEAR is above the horizon from Greenwich, United Kingdom [change].
  • It is visible looking in the South-East direction at an altitude of 42° above the horizon.
  • Given its current magnitude, 209P/LINEAR is visible only through long exposure photography.
  • See also 209P/LINEAR 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 209P/LINEAR available on TheSkyLive:

Available Resources

Comet 209P/LINEAR Position and Finder Charts

Below we provide Comet 209P/LINEAR 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 209P/LINEAR in Aries on May, 26 2022
Field of view: 50x30 degrees
View fullscreen
Map showing Comet 209P/LINEAR in Aries on May, 26 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 209P/LINEAR is right now. Click on the image to see a more detailed fullscreen tracker view.

RA: 03h 07m 47s
Dec: +11° 26’ 37”
Deep sky finder chart for Comet 209P/LINEAR
Field of view: 60x40 arcmins
View fullscreen

Also check out Where is Comet 209P/LINEAR?, a page that provides all the information needed to find Comet 209P/LINEAR in the sky and additional links to sky charts.

Comet 209P/LINEAR Distance from Earth

The distance of Comet 209P/LINEAR from Earth is currently 869,839,626 kilometers, equivalent to 5.814519 Astronomical Units. Light takes 48 minutes and 21.4727 seconds to travel from Comet 209P/LINEAR and arrive to us.

48 minutes and 21.4727 seconds

The following chart shows the distance of Comet 209P/LINEAR 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 209P/LINEAR 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 209P/LINEAR from Earth is also available as a real time updated value in the Live Position and Data Tracker.

Closest approach of Comet 209P/LINEAR to Earth

Between January 2013 and December 2100, the closest approach of Comet 209P/LINEAR to Earth happens on Thu May 29 2014 at a distance of 0.055551 Astronomical Units, or 8,310,272 kilometers:

Thu May 29 2014

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

Comet 209P/LINEAR brightness

The current visual magnitude of Comet 209P/LINEAR is 25.01.


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 209P/LINEAR, 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 209P/LINEAR between January 2013 and December 2100

Comet 209P/LINEAR 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 209P/LINEAR rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 78.6°
Max altitude: 50.0°
Azimuth: 281.5°

The rise and set times are defined as the time at which the upper limb of Comet 209P/LINEAR 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 209P/LINEAR Orbital Elements

The following table lists the orbital elements of Comet 209P/LINEAR at epoch 20 January 2012 00:00 UTC (JD: 2455947.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.69202140
Orbit inclination i 20.61912261°
Perihelion distance q 0.90284100 AU
135,063,092 km
Aphelion distance Q 4.96017032 AU
742,030,920 km
Semi-major axis a 2.93150566 AU
438,547,006 km
Orbital period period 5.0193 years
1,833.3042 days
Date of perihelion transit Tp 2014-Apr-23 05:23:18
2,456,770.7245 JD
Next perihelion transit 2019-Apr-30 12:41
2,458,604.0287 JD
Argument of perihelion peri 152.13065928179°
Longitude of the ascending node node 63.608318863063°
Mean anomaly M 198.34607101666°
Mean motion n 0.19636676°/day

Visualization of Comet 209P/LINEAR Orbit

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Comet 209P/LINEAR with respect of the Sun and the orbits of the major planets. The position of Comet 209P/LINEAR 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 209P/LINEAR
View Comet 209P/LINEAR in the 3D Solar System Simulator

Comet 209P/LINEAR 15 Days Ephemeris

The following table lists the ephemerides of Comet 209P/LINEAR computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Comet 209P/LINEAR in our Online Planetarium at the chosen date.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2022 May 19 03h 01m 59s +10° 56’ 48” 25.03 Aries
2022 May 20 03h 02m 47s +11° 00’ 56” 25.03 Aries
2022 May 21 03h 03m 33s +11° 05’ 03” 25.03 Aries
2022 May 22 03h 04m 20s +11° 09’ 08” 25.02 Aries
2022 May 23 03h 05m 08s +11° 13’ 13” 25.02 Aries
2022 May 24 03h 05m 56s +11° 17’ 14” 25.02 Aries
2022 May 25 03h 06m 42s +11° 21’ 15” 25.02 Aries
2022 May 26 03h 07m 29s +11° 25’ 13” 25.01 Aries
2022 May 27 03h 08m 17s +11° 29’ 09” 25.01 Aries
2022 May 28 03h 09m 03s +11° 33’ 05” 25.01 Aries
2022 May 29 03h 09m 51s +11° 36’ 57” 25.01 Aries
2022 May 30 03h 10m 37s +11° 40’ 49” 25.00 Aries
2022 May 31 03h 11m 23s +11° 44’ 39” 25.00 Aries
2022 Jun 01 03h 12m 11s +11° 48’ 25” 25.00 Aries