The Solar System at your Fingertips
Comets » 

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 Capricornus on July, 25 2017
High Precision Live Sky Chart
21h 02m 30s
-24° 36’ 34”
 = visible to the naked eye
 = binocular, brighter than 10th magnitude
= current altitude ≥ 30°   = current altitude < 30°   = below the horizon
Location: Greenwich, United Kingdom [change]

Comet 209P/LINEAR Rise and Set Times

Today's Comet 209P/LINEAR rise, transit and set times from Greenwich, United Kingdom [change]. All times are relative to the local timezone Europe/London.

Azimuth: 114.6°
Max altitude: 13.9°
Azimuth: 245.4°

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 MagnitudeMag Right AscensionR.A. DeclinationDec. Constellation
2017 Jul 18 23.06 21h 06m 52s -24° 06’ 29” Capricornus
2017 Jul 19 23.05 21h 06m 16s -24° 10’ 47” Capricornus
2017 Jul 20 23.04 21h 05m 39s -24° 15’ 07” Capricornus
2017 Jul 21 23.04 21h 05m 03s -24° 19’ 27” Capricornus
2017 Jul 22 23.03 21h 04m 26s -24° 23’ 44” Capricornus
2017 Jul 23 23.03 21h 03m 47s -24° 28’ 03” Capricornus
2017 Jul 24 23.02 21h 03m 08s -24° 32’ 20” Capricornus
2017 Jul 25 23.01 21h 02m 30s -24° 36’ 34” Capricornus
2017 Jul 26 23.01 21h 01m 50s -24° 40’ 50” Capricornus
2017 Jul 27 23.00 21h 01m 10s -24° 45’ 02” Capricornus
2017 Jul 28 23.00 21h 00m 30s -24° 49’ 14” Capricornus
2017 Jul 29 22.99 20h 59m 50s -24° 53’ 25” Capricornus
2017 Jul 30 22.99 20h 59m 09s -24° 57’ 33” Capricornus
2017 Jul 31 22.98 20h 58m 28s -25° 01’ 40” Capricornus

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* 2027-Jan-06
Distance of closest approach* 1.10478588 AU
165,273,615 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.