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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 December, 12 2017
High Precision Live Sky Chart
08h 14m 21s
+12° 03’ 36”
16.77
 = 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: 77.9°
Max altitude: 50.6°
Azimuth: 282.1°

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 Dec 05 16.70 08h 18m 42s +11° 18’ 37” Cancer
2017 Dec 06 16.71 08h 18m 11s +11° 24’ 28” Cancer
2017 Dec 07 16.72 08h 17m 39s +11° 30’ 29” Cancer
2017 Dec 08 16.73 08h 17m 03s +11° 36’ 45” Cancer
2017 Dec 09 16.74 08h 16m 26s +11° 43’ 10” Cancer
2017 Dec 10 16.75 08h 15m 47s +11° 49’ 48” Cancer
2017 Dec 11 16.76 08h 15m 05s +11° 56’ 35” Cancer
2017 Dec 12 16.77 08h 14m 21s +12° 03’ 36” Cancer
2017 Dec 13 16.78 08h 13m 36s +12° 10’ 45” Cancer
2017 Dec 14 16.79 08h 12m 47s +12° 18’ 06” Cancer
2017 Dec 15 16.80 08h 11m 57s +12° 25’ 36” Cancer
2017 Dec 16 16.82 08h 11m 07s +12° 33’ 15” Cancer
2017 Dec 17 16.83 08h 10m 14s +12° 41’ 06” Cancer
2017 Dec 18 16.84 08h 09m 19s +12° 49’ 04” 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 13 January 2010 00:00 UTC (JD: 2455210.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.68955609
Orbit inclination i 12.88154909°
Perihelion distance q 1.22401206 AU
183,109,598 km
Aphelion distance Q 6.66154818 AU
996,553,425 km
Semi-major axis a 3.94278012 AU
589,831,511 km
Orbital period period 7.8300 years
2,859.5801 days
Date of perihelion transit Tp 2009-Sep-08 23:12:06
2,455,083.4667 JD
Next perihelion transit 2017-Jul-08 13:07
2,457,943.0468 JD
Argument of perihelion peri 246.7477884695°
Longitude of the ascending node node 125.62089058068°
Mean anomaly M 15.992548656981°
Mean motion n 0.12589261°/day
Closest approach to Earth* 2048-Sep-08
Distance of closest approach* 0.39624967 AU
59,278,107 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.