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Comet 209P/LINEAR

Available Resources

Comet 209P/LINEAR Sky Charts and Coordinates

This is a simplified sky chart, showing where Comet 209P/LINEAR is now with respect to the brightest stars and constellations.

More advanced sky charts are available on TheSkyLive for this object: 1) the Online Planetarium which is interactive and allows to select dates and additional objects to visualize; and 2) the Live Position and Data Tracker which provides the highest precision position data and features deep sky imagery from the Digitized Sky Survey.

Comet 209P/LINEAR in Auriga on January, 22 2019
High Precision Live Sky Chart
 = visible to the naked eye
 = binocular, brighter than 10th magnitude
= current altitude ≥ 30°   = current altitude < 30°   = below the horizon
Location: Greenwich, United Kingdom [change]
06h 12m 36s
+50° 45’ 07”
-
21.89
-

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 behvior 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.

Comet 209P/LINEAR Rise and Set Times

Comet 209P/LINEAR is circumpolar from Greenwich, United Kingdom [change] and transits at 22:04 UTC (altitude: 89.3°)

Comet 209P/LINEAR Orbit Diagram

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 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
2019 Jan 15 06h 30m 25s +49° 46’ 27” 22.14 Auriga
2019 Jan 16 06h 28m 04s +49° 55’ 45” 22.11 Auriga
2019 Jan 17 06h 25m 41s +50° 04’ 36” 22.07 Auriga
2019 Jan 18 06h 23m 20s +50° 13’ 00” 22.04 Auriga
2019 Jan 19 06h 20m 57s +50° 20’ 53” 22.01 Auriga
2019 Jan 20 06h 18m 35s +50° 28’ 18” 21.97 Auriga
2019 Jan 21 06h 16m 14s +50° 35’ 12” 21.94 Auriga
2019 Jan 22 06h 13m 54s +50° 41’ 39” 21.91 Auriga
2019 Jan 23 06h 11m 36s +50° 47’ 38” 21.87 Auriga
2019 Jan 24 06h 09m 19s +50° 53’ 07” 21.84 Auriga
2019 Jan 25 06h 07m 02s +50° 58’ 08” 21.81 Auriga
2019 Jan 26 06h 04m 49s +51° 02’ 40” 21.77 Auriga
2019 Jan 27 06h 02m 38s +51° 06’ 46” 21.74 Auriga
2019 Jan 28 06h 00m 28s +51° 10’ 23” 21.71 Auriga

Distance of Comet 209P/LINEAR from Earth

The following chart shows the distance of Comet 209P/LINEAR from Earth as a function of time. Distance data is measured in Astronomical Units and sampled with a 2 days interval.

The reported distances might be inaccurate around the times of closest approach for objects passing extremely close to Earth. The value of the distance of 209P/LINEAR is also available as a real time updated value in the Live Position and Data Tracker.

Distance of Comet 209P/LINEAR from Earth between January 2013 and December 2075

Light Curve of Comet 209P/LINEAR

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 2075

Comet 209P/LINEAR Orbital Elements

The following table lists the orbital elements of Comet 209P/LINEAR at epoch 22 June 2011 00:00 UTC (JD: 2455735.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.69256369
Orbit inclination i 19.48032030°
Perihelion distance q 0.90098697 AU
134,785,732 km
Aphelion distance Q 4.96030487 AU
742,051,048 km
Semi-major axis a 2.93064592 AU
438,418,390 km
Orbital period period 5.0200 years
1,832.4978 days
Date of perihelion transit Tp 2009-Apr-17 12:44:57
2,454,939.0312 JD
Next perihelion transit 2014-Apr-24 00:41
2,456,771.5290 JD
Argument of perihelion peri 150.52958376952°
Longitude of the ascending node node 65.393856991194°
Mean anomaly M 156.46881922669°
Mean motion n 0.19645317°/day
Closest approach to Earth* 2014-May-29
Distance of closest approach* 0.05555069 AU
8,310,265 km

* NOTE: values for the closest approach are computed for the time interval between 2013-Jan-01 and 2075-Dec-31, with a sampling interval of 1 day.