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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 Gemini on February, 21 2018
High Precision Live Sky Chart
07h 11m 15s
+21° 13’ 26”
18.32
 = 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: 68.8°
Max altitude: 59.7°
Azimuth: 291.2°

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
2018 Feb 14 18.12 07h 13m 11s +20° 39’ 11” Gemini
2018 Feb 15 18.15 07h 12m 50s +20° 44’ 27” Gemini
2018 Feb 16 18.18 07h 12m 29s +20° 49’ 36” Gemini
2018 Feb 17 18.20 07h 12m 11s +20° 54’ 37” Gemini
2018 Feb 18 18.23 07h 11m 53s +20° 59’ 30” Gemini
2018 Feb 19 18.26 07h 11m 39s +21° 04’ 15” Gemini
2018 Feb 20 18.29 07h 11m 26s +21° 08’ 53” Gemini
2018 Feb 21 18.32 07h 11m 15s +21° 13’ 26” Gemini
2018 Feb 22 18.35 07h 11m 04s +21° 17’ 49” Gemini
2018 Feb 23 18.38 07h 10m 57s +21° 22’ 06” Gemini
2018 Feb 24 18.40 07h 10m 50s +21° 26’ 17” Gemini
2018 Feb 25 18.43 07h 10m 46s +21° 30’ 20” Gemini
2018 Feb 26 18.46 07h 10m 44s +21° 34’ 15” Gemini
2018 Feb 27 18.49 07h 10m 42s +21° 38’ 04” Gemini

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 16 June 2010 00:00 UTC (JD: 2455364.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.68959950
Orbit inclination i 12.88077095°
Perihelion distance q 1.22418150 AU
183,134,946 km
Aphelion distance Q 6.66357307 AU
996,856,345 km
Semi-major axis a 3.94387729 AU
589,995,645 km
Orbital period period 7.8300 years
2,860.7738 days
Date of perihelion transit Tp 2009-Sep-08 23:29:08
2,455,083.4786 JD
Next perihelion transit 2017-Jul-09 18:03
2,457,944.2523 JD
Argument of perihelion peri 246.76000303498°
Longitude of the ascending node node 125.62121088762°
Mean anomaly M 35.363759391391°
Mean motion n 0.12584008°/day
Closest approach to Earth* 2048-Sep-08
Distance of closest approach* 0.39624065 AU
59,276,758 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.