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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 Leo on April, 23 2017
High Precision Live Sky Chart
11h 17m 33s
+17° 51’ 42”
 = 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: 72.1°
Max altitude: 56.4°
Azimuth: 287.9°

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 Apr 16 25.43 11h 20m 30s +18° 04’ 40” Leo
2017 Apr 17 25.44 11h 20m 03s +18° 03’ 07” Leo
2017 Apr 18 25.45 11h 19m 36s +18° 01’ 28” Leo
2017 Apr 19 25.47 11h 19m 09s +17° 59’ 44” Leo
2017 Apr 20 25.48 11h 18m 43s +17° 57’ 52” Leo
2017 Apr 21 25.49 11h 18m 20s +17° 55’ 54” Leo
2017 Apr 22 25.50 11h 17m 56s +17° 53’ 52” Leo
2017 Apr 23 25.52 11h 17m 33s +17° 51’ 42” Leo
2017 Apr 24 25.53 11h 17m 11s +17° 49’ 26” Leo
2017 Apr 25 25.54 11h 16m 50s +17° 47’ 04” Leo
2017 Apr 26 25.56 11h 16m 31s +17° 44’ 36” Leo
2017 Apr 27 25.57 11h 16m 10s +17° 42’ 02” Leo
2017 Apr 28 25.58 11h 15m 52s +17° 39’ 24” Leo
2017 Apr 29 25.60 11h 15m 35s +17° 36’ 38” Leo

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 January 2030

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 January 2030

Comet 209P/LINEAR Orbital Elements

The following table lists the orbital elements of Comet 209P/LINEAR at epoch 20 June 2011 00:00 UTC (JD: 2455733.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.69253763
Orbit inclination i 19.47577296°
Perihelion distance q 0.90107881 AU
134,799,472 km
Aphelion distance Q 4.96031376 AU
742,052,378 km
Semi-major axis a 2.93069629 AU
438,425,925 km
Orbital period period 5.0200 years
1,832.5450 days
Date of perihelion transit Tp 2009-Apr-17 12:27:10
2,454,939.0189 JD
Next perihelion transit 2014-Apr-24 01:31
2,456,771.5639 JD
Argument of perihelion peri 150.5212232131°
Longitude of the ascending node node 65.403583419347°
Mean anomaly M 156.07431447402°
Mean motion n 0.19644811°/day
Closest approach to Earth* 2022-Oct-27
Distance of closest approach* 1.18570947 AU
177,379,613 km

* NOTE: values for the closest approach are computed for the time interval between 2013-Jan-01 and 2030-Jan-01, with a sampling interval of 1 day.