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Comet 217P/LINEAR

Available Resources

Comet 217P/LINEAR Sky Charts and Coordinates

This is a simplified sky chart, showing where Comet 217P/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 217P/LINEAR in Cancer on October, 18 2017
High Precision Live Sky Chart
07h 58m 00s
+10° 13’ 38”
 = 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 217P/LINEAR Rise and Set Times

Today's Comet 217P/LINEAR rise, transit and set times from Greenwich, United Kingdom [change]. All times are relative to the local timezone Europe/London.

Azimuth: 79.8°
Max altitude: 48.7°
Azimuth: 280.2°

Comet 217P/LINEAR Orbit Diagram

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Comet 217P/LINEAR with respect of the Sun and the orbits of the major planets. The position of Comet 217P/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 217P/LINEAR
View Comet 217P/LINEAR in the 3D Solar System Simulator

Comet 217P/LINEAR Ephemeris

The following table lists the ephemerides of Comet 217P/LINEAR computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Comet 217P/LINEAR in our Online Planetarium at the chosen date.

Date MagnitudeMag Right AscensionR.A. DeclinationDec. Constellation
2017 Oct 11 16.32 07h 48m 01s +10° 28’ 59” Canis
2017 Oct 12 16.33 07h 49m 32s +10° 26’ 36” Canis
2017 Oct 13 16.35 07h 51m 02s +10° 24’ 17” Canis
2017 Oct 14 16.36 07h 52m 28s +10° 22’ 02” Canis
2017 Oct 15 16.37 07h 53m 54s +10° 19’ 50” Canis
2017 Oct 16 16.39 07h 55m 18s +10° 17’ 43” Canis
2017 Oct 17 16.40 07h 56m 39s +10° 15’ 38” Cancer
2017 Oct 18 16.41 07h 58m 00s +10° 13’ 38” Cancer
2017 Oct 19 16.42 07h 59m 17s +10° 11’ 44” Cancer
2017 Oct 20 16.44 08h 00m 33s +10° 09’ 53” Cancer
2017 Oct 21 16.45 08h 01m 46s +10° 08’ 08” Cancer
2017 Oct 22 16.46 08h 02m 57s +10° 06’ 29” Cancer
2017 Oct 23 16.47 08h 04m 08s +10° 04’ 54” Cancer
2017 Oct 24 16.48 08h 05m 15s +10° 03’ 26” Cancer

Distance of Comet 217P/LINEAR from Earth

The following chart shows the distance of Comet 217P/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 217P/LINEAR is also available as a real time updated value in the Live Position and Data Tracker.

Distance of Comet 217P/LINEAR from Earth between January 2013 and December 2075

Light Curve of Comet 217P/LINEAR

The following chart is the predicted light curve (visual magnitude as a function of time) of Comet 217P/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 217P/LINEAR between January 2013 and December 2075

Comet 217P/LINEAR Orbital Elements

The following table lists the orbital elements of Comet 217P/LINEAR at epoch 11 July 2009 00:00 UTC (JD: 2455024.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.68966523
Orbit inclination i 12.88160839°
Perihelion distance q 1.22397474 AU
183,104,016 km
Aphelion distance Q 6.66411809 AU
996,937,879 km
Semi-major axis a 3.94404642 AU
590,020,947 km
Orbital period period 7.8300 years
2,860.9578 days
Date of perihelion transit Tp 2009-Sep-08 23:06:34
2,455,083.4629 JD
Next perihelion transit 2017-Jul-09 22:05
2,457,944.4207 JD
Argument of perihelion peri 246.74278095379°
Longitude of the ascending node node 125.62199046965°
Mean anomaly M 352.58058173022°
Mean motion n 0.12583198°/day
Closest approach to Earth* 2048-Sep-08
Distance of closest approach* 0.39634081 AU
59,291,741 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.